NCB Periprosthetic Femur Plate Surgical Technique
2016-04-01
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NCB® Periprosthetic Femur Plate System Surgical Technique 3 NCB® Periprosthetic Femur System – Surgical Technique Table of Contents Introduction 4 System Features and Benefits 9 Indications and Contraindications 13 Periprosthetic Femur Fracture Classification 14 NCB Periprosthetic Plate Positioning and Screw Fixation 16 NCB Screw Insertion 20 Screw Insertion for NCB Periprosthetic Trochanter Plate 22 NCB Periprosthetic Proximal Femur Plate – Surgical Technique 23 NCB Periprosthetic Distal Femur Plate – Surgical Technique 33 NCB Curved Femur Shaft Plate – Surgical Technique 39 NCB Bone Spacers (Optional) 44 NCB Blind Screw Inserts (Optional) 44 Tips and Tricks for the NCB Periprosthetic Femur System 45 Implant Removal 46 Product Information – Implants 47 Product Information – Instruments 51 Planning Aid 54 4 NCB® Periprosthetic Femur System – Surgical Technique Introduction The NCB (Non-Contact Bridging) Periprosthetic Femur System is a line of polyaxial locking plates designed for the treatment of femur fractures, particularly periprosthetic femur fractures. It consists primarily of a Proximal Femur Plate, a Distal Femur Plate, and a Curved Femur Shaft Plate. In addition to that a Trochanter Plate is available to reattach the greater trochanter in combination with a Proximal Femur Plate. The NCB Periprosthetic Proximal and Distal Femur Plates are wider in the area of the prosthesis and have offset holes that may allow bicortical screw placement in the area of the prosthesis. NCB Periprosthetic Proximal Femur Plate NCB Periprosthetic Trochanter Plate assembled with NCB Periprosthetic Proximal Femur Plate (short) NCB Periprosthetic Distal Femur Plate NCB Curved Femur Shaft Plate 5 NCB® Periprosthetic Femur System – Surgical Technique The labeling of the NCB Periprosthetic Proximal and Distal Femur Plates corresponds with number of NCB Plate holes in a specific way. MIS Interface Proximal Plates: the number of holes according label text = the number of all NCB screw holes distal to the MIS interface. +3 +3 Distal Plates: the number of holes according label text = the number of all NCB screw holes proximal to the MIS interface +3 + ... Example: 12 hole plate = 2 x 3-hole pattern + 6. 21 18 15 12 9 holes The NCB Periprosthetic Trochanter Plate is available in two different sizes (different width) whereas the height is the same. Due to the anatomical shape of the proximal femur a left and right version is offered. left wide left narrow right narrow right wide 6 NCB® Periprosthetic Femur System – Surgical Technique The NCB System Technology allows for polyaxial screw placement (30° cone) with screw locking achieved through the use of locking caps that are threaded into the plate holes. The locking construct allows for improved stability especially in osteopenic bone. Before locking, the screws can act as lag screws and be used for fracture reduction; a benefit which is not offered with standard locking systems. 30° NCB 30° Cone Polyaxiality In the locked mode, the NCB Periprosthetic Plate acts as an internal fixator without contact between the plate and the bone surface, which may reduce the risk of periosteal blood supply impairment. This Non-Contact Bridging concept can also be controlled specifically through the use of 1, 2, or 3mm spacers, which are threaded into the plate holes prior to plate insertion. Non contact Angular stability with the NCB Locking Caps Locking cap ∅ 8mm Blind screw insert NCB Non-Contact Bridging Spacer 1 to 3mm 7 NCB® Periprosthetic Femur System – Surgical Technique The NCB Periprosthetic Trochanter Plate has a built in screw technology which gives surgeons the ability to create a fixed-angle construct while using familiar plating techniques. The locking screw heads contain male threads, while the holes in the plates contain female threads. This allows the screw head to be threaded into the plate hole, locking the screw into the plate. The heads are designed to c reate a nearly flush profile on the plate, which helps to decrease soft tissue irritation. The plate also allows anatomical reduction of the fracture fragments using standard cortical screws (non-locking). Double-lead threads (Double the shaft thread pitch) Shallow thread profile compared to traditional screws Head and shaft advance at same rate into plate and bone NOTE: If lag screw fixation is necessary for any fragment, the lag screw must be inserted before inserting locking screws into that fragment. The NCB Periprosthetic Trochanter Plate contains different hole types. a) Hex Button holes: used to place Hex Buttons in combination with cables around the plate and the femoral bone. b) Clearance holes for K-Wires: used for preliminary fixation of the plates to the bone. c) Connection Screw holes: used to assemble the NCB Periprosthetic Trochanter Plate to the NCB Periprosthetic Proximal Femur Plate. Screws must be tightened to 6Nm using the corresponding torque screwdriver (REF 02.00024.021). d) 3.5mm Screw holes: used to place Zimmer® Universal Locking System (ULS) locking screws or cortical screws (non-locking). e) Clearance holes for NCB Screw holes: used to place poly-axial locking screws (NCB Screws) or blue NCB Cable Buttons (REF 47-2232-060-01) in combination with cables around the plate and femoral bone. Note: Do not use the gold NCB Locking Plate Cable Button (REF 47-2232-06000) or Hex Button (REF 00-2232-002-35) in any clearance holes for NCB screw holes on the NCB Periprosthetic Trochanter Plate. If attaching cables, the blue NCB Cable Button (REF 47-2232060-01) must be used in these holes when the Trochanter plate is attached. Using the wrong cable fixation option increases the likelihood of disengagement of the button which can lead to refracture or damage to the bone. 8 NCB® Periprosthetic Femur System – Surgical Technique The surgical technique is based on wellknown standard plate osteosynthesis techniques, which give the surgeon tactile feedback regarding bone quality during drilling and tightening of the screws. In addition, with the use of locking caps the screws can be locked and made angularly stable. The NCB Periprosthetic Femur System allows for extensive flexibility in the treatment of periprosthetic fractures. The polyaxial NCB Plate technology, along with the offset plate holes, may allow for bicortical screw fixation around the stem of the implanted prosthesis. In this way, the surgeon can achieve better construct stability than with cables with less damage to the soft tissue. And because of the Non-Contact Bridging concept, the risk to the periosteal blood supply may be reduced. Additionally, fixation using cables and cable buttons is possible for those cases where bicortical screw fixation cannot be achieved. Both techniques (locking screws and cables) may also be combined. Blunt tip unicortical NCB Screws are also available, creating a system which offers comprehensive solutions for these difficult fractures. Bicortical screw anchorage around the stem with NCB Screws Fixation using uni- and bicortical screws, as well as cables and cable buttons 9 NCB® Periprosthetic Femur System – Surgical Technique System Features and Benefits NCB Periprosthetic Proximal and Distal Femur Plates Innovative Periprosthetic Plate Design • Specific anatomical fit to the bone in left and right designs • Wide plate design in the periprosthetic region to allow for bicortical screw fixation around the prosthesis, and narrow plate design on the rest of the plate to minimize soft tissue disruption. MIS Interface • MIS interface, consisting of three holes, allows for connection to the Targeting Device. See surgical technique REF 97-2370-010-00 for specific instructions. Diagonal Three Hole Pattern Diagonal three hole pattern allows for more screw options: • Off-set holes allow for easier screw placement around the prosthesis and stable bicortical screw fixation. The holes accommodate 5.0mm NCB Screws, and two types of 4.0mm NCB Screws for use when there is minimal bone around the prosthesis. • The central holes can accommodate threaded 5.0mm NCB Unicortical Screws, threaded Cable Buttons and Cables, when bicortical fixation cannot be achieved. Diagonal Three Hole Pattern Differently Shaped Scallops Differently Shaped Scallops • Reduced and uniform plate stiffness. • Better plate contouring across solid cross-sections, away from holes. Divergent Screw Alignment • Increased pull-out resistance. • Reduced risk of fracture due to linear perforation of the bone. Divergent Screw Alignment (plate bottom side) MIS Interface 10 NCB® Periprosthetic Femur System – Surgical Technique NCB Periprosthetic Proximal Femur Plate Trochanter Plate Interface Two threaded holes allow for connection with the NCB Periprosthetic Trochanter Plate to cover periprosthetic fractures in the trochanteric area. K-Wire Holes K-Wire Holes Two proximal k-wire holes and one distal k-wire hole allow for easier preliminary fixation. Trochanter Plate In combination with a Proximal Femur Plate the Trochanter Plate offers usage of ULS locking screws or cortical screws (non-locking) to re-attach the greater trochanter. Trochanter Plate Interface Additional holes allow for usage of HEX buttons to fix cables to the NCB Periprosthetic Trochanter Plate. Short Proximal Femur Plate One adjustment slot is added to this specific plate which allows for preliminary fixation of the plate. NCB Periprosthetic Distal Femur Plate 95° Angled Distal Hole The most distal central plate hole is angled at 95° to the plate shaft to allow screw insertion parallel to the joint. This can help reduce the fracture and may facilitate realignment of the anatomic axis of the femur. K-Wire Holes • One proximal k-wire hole aids in pre liminary plate fixation to bone. • Three Distal k-wire holes are parallel to the most distal central plate hole to aid in femoral realignment. 95° Angled Distal Hole 95° Angled Distal K-Wire Holes 11 NCB® Periprosthetic Femur System – Surgical Technique NCB Curved Femur Shaft Plate Symmetric Design One plate for left and right femurs due to symmetric design. Compression Slots Two compression slots allow 1mm of compression each. Articulated Tension Device Hole K-Wire Holes Two k-wire holes at each end of the plate allow easier preliminary plate fixation. Articulated Tension Device Holes One hole at each end of the plate allows for connection of the Articulated Tension Device to achieve additional compression, if needed. K-Wire Holes Compression Slots Articulated Tension Device Hole NCB Periprosthetic Femur System Broad Screw Options Six different NCB Screw types and two different 3.5mm ULS locking screws and cortical screws (only for NCB Periprosthetic Trochanter Plate) are offered with the NCB Periprosthetic Femur System, to allow both bicortical and unicortical fixation. Broad Screw Options ∅ mm Description 5 NCB Screws 5 NCB Unicortical Screws 5 NCB Cancellous Screws 4 NCB Screws 4 NCB Screws, Deep Thread 3.5 ULS Locking Screw 3.5 Cortical Screw 5 NCB MotionLoc® Screws Specific Instruments for Periprosthetic Fractures Slightly oversized drill bits and drill guides are offered with the NCB Periprosthetic Femur System, to reduce the risk of cracks in the cement mantle when placing screws around a cemented prosthesis. NCB Instruments for overdrilling into cement 12 NCB® Periprosthetic Femur System – Surgical Technique Cable Fixation Options The following products from the Zimmer® Cable-Ready® Cable Grip System are compatible with the NCB Periprosthetic Femur System: See data sheet REF 97-2232-015-00 for more specific instructions. NCB Locking Plate Cable Button, 2.5mm, Hex Drive Hex Button, 3.5mm Cable Assembly Cerclage, 1.8mm • Sterile • Material: Ti6Al4V • Sterile • Material: C.P. Titanium • Sterile • Material: CoCr REF 47-2232-060-00 Color: Gold* REF 47-2232-060-01 Color: Blue REF 00-2232-002-35 REF 00-2232-002-28 REF 00-2232-004-18 Application This Cable Button is threaded directly into the NCB Plate hole to provide a positioning point for the Cable Instructions To insert, use the 2.5mm hex screwdriver to thread the cable button in to the plate hole. Do not fully tighten to allow the slots in the button to align with the cable. Application This Hex Button fits into the standard hex in the screw head (3.5mm hex). Therefore, it can be inserted into the NCB Screw head, or into the NCB Locking Cap or directly into the specific holes of the NCB Periprosthetic Trochanter Plate. To remove, use 2.5mm hex screwdriver to unthread the cable button from the plate hole. Note If adding cables to the NCB screw holes of the NCB Periprosthetic Trochanter plate, ensure that only the compatible blue NCB Cable Button (REF 47-2232-060-01) is used. See page 7 for details. Cable Fixation with Cable Button Cable Fixation Options * Not available in Europe, Middle East, and Africa Cable Fixation Options (NCB Periprosthetic Trochanter Plate) Cable Fixation with Hex Button 13 NCB® Periprosthetic Femur System – Surgical Technique Indications and Contraindications Indications The NCB Periprosthetic Femur Polyaxial Locking Plate System is indicated for temporary internal fixation and stabilization of fractures and osteotomies of long bones, including: • Periprosthetic fractures • Comminuted fractures • Supracondylar fractures • Fractures in osteopenic bone • Nonunions • Malunions The NCB Periprosthetic Trochanter Plate when used in combination with… NCB Periprosthetic Proximal Femur Plate, short (Length = 115mm) is indicated for temporary internal fixation and stabilization of fractures and osteotomies of the greater trochanter. NCB Periprosthetic Trochanter Plate + NCB Periprosthetic Proximal Femur Plates (Length = 245mm, 285mm, 324mm, 363mm, 401mm) is indicated for temporary internal fixation and stabilization of fractures and osteotomies of the proximal femur. + In addition, both combinations are indicated for: • Re-attachment of the greater trochanter following osteotomy in THA • Re-attachment of the greater trochanter following fracture of greater trochanter • Periprosthetic fractures • Comminuted fractures • Fractures in osteopenic bone • Nonunions • Malunions Contraindications • All concomitant diseases that may impair the fixation of the implant and/ or the success of the intervention • Lack of bone substance or poor bone quality which makes stable seating of the implant impossible • Acute or chronic, local or systemic infections • Allergy to the implanted materials • Severe muscular, neural or vascular diseases that endanger the extremities involved • Loose prosthesis, which requires immediate revision • If the NCB Periprosthetic Trochanter Plate is used in combination with the NCB Periprosthetic Proximal Femur Plate short (Length=115mm), Femoral Neck Fracture is a contraindication as well 14 NCB® Periprosthetic Femur System – Surgical Technique Periprosthetic Femur Fracture Classification Comprehensive classification systems for periprosthetic femur fractures are the Vancouver classification for fractures following Total Hip Arthoplastly (THA), and the Lewis and Rorabeck Classifi cation for fractures following a Total Knee Arthoplastly (TKA). Vancouver Classification Fractures around Hip Implants According to the Vancouver classifications, Type B1 (fracture located around the tip of the hip prosthesis) and Type C periprosthetic fractures (fracture located well below the tip of the hip prosthesis), both with a stable implant, may be treated with ORIF (Open Reduction Internal Fixation). For such fractures, either the NCB Periprosthetic Proximal Femur Plate or the NCB Curved Femur Shaft Plate may be used. Vancouver Classification Type A Fracture: occurs at the proximal part of the femur with displacement of the greater trochanter or lesser trochanter Type A Type B1 Type B1 Fracture: occurs around or just distal to a well-fixed femoral stem Type B2 Fracture: occurs around or just distal to a loose femoral stem with adequate proximal bone Type B3 Fracture: occurs around or just distal to a loose femoral stem with poor proximal bone stock Type C Fracture: occurs well distal to the stem tip Type C Type B2 Type B3 15 NCB® Periprosthetic Femur System – Surgical Technique Fractures around Knee Implants Lewis and Rorabeck Classification Periprosthetic femoral fractures following a TKA which are usually treated with ORIF are Type II fractures of the Lewis and Rorabeck Classification (displaced fractures where the knee prosthesis is intact). For such fractures the NCB Periprosthetic Distal Femur Plate may be used. Lewis and Rorabeck Classification Type I Fracture: Non-displaced fracture. Prosthesis intact Type I Type II Fracture: Displaced fracture. Prosthesis intact Type III Fracture: Non-displaced or displaced fracture. Prosthesis loose or failing Type II Type III 16 NCB® Periprosthetic Femur System – Surgical Technique NCB Periprosthetic Plate Positioning and Screw Fixation Recommended NCB Periprosthetic Plate Positioning • Ensure that the length of the NCB Periprosthetic Proximal Femur or Distal Femur Plate allows for screw placement around the existing prosthesis along the diagonal three hole pattern in the widest area of the plate. • The widest part of the plate should be placed on the fracture site. Do not place the narrow part of the plate over the fracture site. Transition Narrow plate design Wide plate design: Location of the periprosthetic fracture NCB Periprosthetic Proximal Femur Plate and fracture location Transition Wide plate design: Location of the periprosthetic fracture NCB Periprosthetic Distal Femur Plate and fracture location Narrow plate design 17 NCB® Periprosthetic Femur System – Surgical Technique Recommended NCB Screw Fixation The NCB Periprosthetic Femur System offers five different types of polyaxial locking screws, four of them are designed for bicortical purchase, and one of them is designed for unicortical purchase. In addition, Ø5.0mm Zimmer MotionLoc Screws are also compatible with the NCB Periprosthetic Femur System and have a more specific instruction in the Surgical Technique (REF: 97-3161-004-00). Recommended NCB Screw usage for NCB Periprosthetic Proximal Femur and Distal Femur Plates: • Use two bicortical 5.0mm NCB Screws close to the fracture on each side of the fracture. • Wherever possible, use 5.0mm bicortical NCB Screws. For thin cortical bone near the prosthesis, the 4.0mm NCB Screws may be used. Note: the 4.0mm NCB Screws, deep thread are only recommended for use around the implanted prosthesis when the cortical wall is too thin to use even with the 4.0mm NCB Screws. They are not r ecommended for use near the fracture site. The 4.0mm NCB Screws, Deep Thread have a smaller core diameter than the 4.0mm NCB Screws (2.9mm versus 3.4mm), which allows for a more aggressive thread design for improved anchorage in thin bone. Furthermore, as the core diameter is smaller, less bone is removed during drilling and screw insertion. NCB Screws – Bicortical Screw Type Unicortical Cortical 5mm Cortical 4mm Cortical 4mm Deep Thread Cancellous Partially threaded Cortical Blunt Tip 5mm 4mm 4mm 5mm 5mm Core ∅ 4.4mm 3.4mm 2.9mm 2.9mm 4.4mm Length 22–100mm 20–65mm 20–65mm 50–100mm 10–20mm 02.03150.xxx 02.02150.xxx 02.03155.xxx 02.02155.xxx 02.03154.xxx 02.02154.xxx 02.03152.xxx 02.02152.xxx 02.03151.xxx 02.02151.xxx Close to the fracture area, in the shaft area, or where there is no risk of hitting the prosthesis Away from the fracture area to achieve bicortical fixation around the prosthesis Away from the fracture area to achieve bicortical fixation around the prosthesis when fixation even with the 4.0mm cortical standard screws is impossible Metaphyseal area of the Distal Femur For use when bicortical fixation cannot be achieved 4.3 / 4.5mm 3.3 / 3.5mm 3.0mm 2.5mm 4.3 / 4.5mm 02.00024.002 02.00024.330* 02.00024.118 02.00024.325* 02.00024.301 – 103.25.180 – 02.00024.002 02.00024.330* Tap REF 02.00024.341 02.00024.340 02.00024.305 – 02.00024.341 Drill Guide REF 02.00024.011 02.00024.331 02.00024.111 02.00024.326 02.00024.310 – 02.00024.010 – 02.00024.011 02.00024.331 Outer ∅ REF REF Sterile Application Drill Bit ∅ Drill Bit REF NCB Screw portfolio for the NCB Periprosthetic Femur System * Titanium nitride coated drill bits for drilling into the cement mantle Warning If only unicortical screws are used, the use of cables is required 18 NCB® Periprosthetic Femur System – Surgical Technique Recommended Screw Fixation for NCB Periprosthetic Trochanter Plate The NCB Periprosthetic Femur System offers two additional types of screws to be used with the NCB Periprosthetic Trochanter Plate, ULS locking screw and cortical screw (non-locking). Recommended Screw usage for NCB Periprosthetic Trochanter Plates: • Use at least three 3.5mm screws placing them both anterior and posterior to the prosthesis. • If using two 3.5mm screws in the most proximal holes to secure the t rochanteric fragment, add two additional screws distally. • Screws should be placed through fracture zone, or osteotomy gap. FOR EMEA (Europe, Midle East, and Africa) ONLY: Instead of using the 3.5mm cortical screws from the ULS system (00-4935-xxx-35) standard 3.5mm cortical screws (02.03131.xxx) can be implanted as well. ULS Screws Cortical Screws (FOR EMEA ONLY) Locking 3.5mm Cortical 3.5mm Cortical 3.5mm Outer ∅ 3.5mm 3.5mm 3.5mm Core ∅ 2.7mm 2.4mm 2.4mm Length 12–60mm* 12–60mm** 12–60mm 00-2369-xxx-35 47-2369-xxx-35 00-4935-xxx-01 47-4935-xxx-01 02.03131.xxx — Trochanteric area in locked mode Trochanteric area in non-locked mode Trochanteric area in non-locked mode 2.7mm 2.5mm 2.5mm Drill Bit REF 00-2360-205-27 00-4807-180-25 00-4807-180-25 Tap REF 00-2360-153-35 00-4811-110-35 00-4811-110-35 Drill Guide REF 00-2360-020-27 00-4808-035-01 00-4808-035-01 Screw Type REF REF Sterile Application Drill Bit ∅ Screw portfolio for the NCB Periprosthetic Femur System (Trochanter Plate) * Longer sizes (60mm – 90mm, 5mm steps) are available upon request sterile packed ** Longer sizes (60mm – 95mm, 5mm steps) are available upon request sterile packed 19 NCB® Periprosthetic Femur System – Surgical Technique Standard NCB Screw Fixation Standard NCB Screw Fixation 1. Shows a standard NCB Plate used in a non periprosthetic fracture. Recommended NCB Periprosthetic Screw Fixation Standard NCB Screw Fixation 2. Indicates recommended NCB Screw fixation for the NCB Periprosthetic Plate in periprosthetic fractures. Bicortical screw fixation with at least four NCB Screws is recommended along the diagonal three hole pattern in the widest section of the plate. Place screws both anterior and posterior to the prosthesis. Warning: Do not insert three screws in one diagonal three hole pattern, because it creates a stress riser in the bone. When no prosthesis is present beneath the plate standard NCB Screw fixation can be applied. Note: To prevent thread stripping and allow for adequate bone purchase, pass screws as centrally through the bone as possible. In addition, irrigation may be used during drilling to help p revent thermal necrosis. Alternative NCB Periprosthetic Screw Fixation Standard NCB Screw Fixation 3. Demonstrates a situation where four bicortical NCB Screws cannot be placed along the diagonal three hole pattern in the wide part of the plate. To ensure s table fracture fixation, the use of one or two divergent 5.0mm NCB Unicortical Screws is recommended. If only one bicortical screw can be placed in the offset holes of a given diagonal three hole pattern, place one 5.0mm NCB Unicortical Screw in the c entral hole of that three-hole pattern. Standard NCB Screw Fixation Alternative NCB Periprosthetic Screw Fixation with Cable 4. Demonstrates a situation where a threaded cable button and cable are used as an optional fixation method, when additional fixation is required. NCB Screw ∅ 5mm NCB Screw ∅ 5 or 4mm, or NCB Screw ∅ 4mm, Deep Thread NCB Unicortical Screw ∅ 5mm Cable Ready Cable-Button and Cable Recommended NCB Screw fixation for the NCB Periprosthetic Proximal Femur and Distal Femur Plates Warning: Do not insert three screws in one diagonal three hole pattern, because it creates a stress riser in the bone. 20 NCB® Periprosthetic Femur System – Surgical Technique NCB Screw Insertion For All Types of NCB Screws and NCB Locking Caps NCB Screw ∅ 5.0mm NCB Unicortical Screw ∅ 5.0mm 1. To insert a 5.0mm NCB Screw (REF 02.03150.xxx) use the 4.3mm NCB Drill Guide (REF 02.00024.011) and drill with the 4.3mm drill bit (REF 02.00024.002). Warning: If only unicortical screws are used, the use of cables is required. • Do not hit the prosthesis with the tip of the drill, tap or screw. • Take care to avoid collision of the screws by choosing the appropriate plate holes and screw lengths. • Press the NCB Drill Guide into the plate hole perpendicular to the plate and then tilt it in the preferred direction. The drill guide needs to be in constant contact with the bottom ring of the hole. The guide limits the angulation to 15° from the perpendicular axis of the plate or a cone of 30° for placing a locked NCB Screw. Always use the drill guide since it prevents selection of an excessive screw angle and failure of subsequent locking. • Screws may be inserted under power but should be final tightened by hand only. • Lock the construct, insert and tighten the NCB Locking Caps (REF 02.03150.300) by using the NCB Torque Limiting Screwdriver, 6Nm (REF 02.00024.021) until a click sound is heard. Make sure the screwdriver is not tilted during its usage. If the driver is tilted, it could damage the hex drive and might complicate the extraction of the implants. For Zimmer MotionLoc Screws See surgical technique REF 97-3161-004-00 for more specific instructions. In case of hard cortical bone or the presence of a cement mantle, tap the cortex with the 5.0mm NCB Tap (REF 02.00024.341). Remove the 4.3mm NCB Drill Guide before using the NCB Tap. Note: The 4.3mm drill bit can drill a maximum of 105mm deep when used with the drill guide. If a longer screw is needed, remove the drill guide and drill the additional depth free hand. Note: Inserting screws in the presence of a cement mantle can cause cracks, which may cause loosening of the prosthesis. Overdrilling by using a drill bit of a slightly larger diameter (0.2mm) may reduce cracking in the cement mantle during screw insertion. Instead of the 4.3mm drill bit, use the 4.5mm drill bit (REF 02.00024.330) and its corresponding drill guide (REF 02.00024.331).1 2. Use the NCB Measuring Device (REF 02.00024.005) to determine the appropriate screw length and insert the NCB Screw using the NCB Hexagonal Screwdriver (REF 02.00024.023) or screwdriver shaft (REF 02.00024.024). 3. To lock the construct, insert the NCB Locking Caps (REF 02.03150.300) as described at the beginning of this section. 1. To insert a 5.0mm NCB Unicortical Screw (REF 02.03151.0xx) use the 4.3mm NCB Drill Guide (REF 02.00024.011) and drill with the 4.3mm drill bit (REF 02.00024.002). In case of hard cortical bone or the presence of cement mantle, tap the cortex with the 5.0mm NCB Tap (REF 02.00024.341). Remove the 4.3mm NCB Drill Guide before using the NCB Tap. Note: Inserting screws in the presence of a cement mantle can cause cracks, which may cause loosening of the prosthesis. Overdrilling by using a drill bit of a slightly larger diameter (0.2mm) may reduce cracking in the cement mantle during screw insertion. Instead of the 4.3mm drill bit, use the 4.5mm drill bit (REF 02.00024.330) and its corresponding drill guide (REF 02.00024.331).2 2. Use the NCB Measuring Device (REF 02.00024.005) to determine the appropriate screw length and insert the NCB Unicortical Screw using the NCB Hexagonal Screwdriver (REF 02.00024.023). Note: When using the NCB Measuring Device to measure the length of the NCB Unicortical Screw needed, the device will not hook the far cortex of the bone. Use the screw length measured. Do not use a longer screw. 3. To lock the construct, insert the NCB Locking Caps (REF 02.03150.300) as described at the beginning of this section. 1, 2 J. Kampshoff et al.: The treatment of periprosthetic fractures with locking plates: effect of drill and screw type on cement mantles: a biomechanical analysis, Archives of Orthopedic and Trauma Surgery, Springer, March 2009. Drilling of the locking holes 21 NCB® Periprosthetic Femur System – Surgical Technique NCB Cancellous Screw ∅ 5.0mm NCB Screw ∅ 4.0mm NCB Screw ∅ 4.0mm, Deep Thread 1. To insert a 5.0mm NCB Cancellous Screw (REF 02.03152.xxx) use the NCB 2.5mm Drill Guide (REF 02.00024.010) and use the 2.5mm drill bit (REF 103.25.180). 1. To insert a 4.0mm NCB Screw (REF 02.03155.0xx) use the 3.3mm NCB Drill Guide (REF 02.00024.111) and drill with the 3.3mm drill bit (REF 02.00024.118). 1. To insert a 4.0mm NCB Screw, Deep Thread (REF 02.03154.0xx) use the 3.0mm NCB Drill Guide (REF 02.00024.310) and drill with the 3.0mm drill bit (REF 02.00024.301). In case of hard cortical bone drill the cortex with a 4.3mm drill bit (REF 02.00024.002) by using the 4.3mm NCB Drill Guide (REF 02.00024.011). In case of hard cortical bone or the presence of the cement mantle, tap the cortex with the 4.0mm NCB Tap (REF 02.00024.340). Remove the 3.3mm NCB Drill Guide before using the NCB Tap. In case of hard cortical bone or the presence of the cement mantle, tap the cortex with the 4.0mm NCB Tap, Deep Thread (REF 02.00024.305). Remove the 3.0mm NCB Drill Guide before using the NCB Tap. Note: Inserting screws in the presence of a cement mantle can cause cracks, which may cause loosening of the prosthesis. Overdrilling by using a drill bit of a slightly larger diameter (0.2mm) may reduce cracking in the cement mantle during screw insertion. Instead of the 3.3mm drill bit, use the 3.5mm drill bit (REF 02.00024.325) and its corresponding drill guide (REF 02.00024.326).1 2. Use the NCB Measuring Device (REF 02.00024.005) to determine the appropriate screw length and insert the NCB Screw, Deep Thread using the NCB Hexagonal Screwdriver (REF 02.00024.023) or screwdriver shaft (REF 02.00024.024). Note: Use the 5.0mm NCB Cancellous Screws only in cancellous bone. Note: The 2.5mm drill bit can drill a maximum of 90mm deep when used with the drill guide. If a longer screw is needed, remove the drill guide and drill the additional depth free hand. 2. Use the NCB Measuring Device (REF 02.00024.005) to determine the appropriate screw length and insert the NCB Cancellous Screw using the NCB Hexagonal Screwdriver (REF 02.00024.023) or screwdriver shaft (REF 02.00024.024). Cancellous screws are partially threaded and can be used as lag screws to reduce the fracture and obtain close contact between the plate and the bone. 3. To lock the construct, insert the NCB Locking Caps (REF 02.03150.300) as described at the beginning of this section. 1 2. Use the NCB Measuring Device (REF 02.00024.005) to determine the appropriate screw length and insert the NCB Screw using the NCB Hexagonal Screwdriver (REF 02.00024.023) or screwdriver shaft (REF 02.00024.024). 3. To lock the construct, insert the NCB Locking Caps (REF 02.03150.300) as described at the beginning of this section. J. Kampshoff et al.: The treatment of periprosthetic fractures with locking plates: effect of drill and screw type on cement mantles: a biomechanical analysis, Archives of Orthopedic and Trauma Surgery, Springer, March 2009. 3. To lock the construct, insert the NCB Locking Caps (REF 02.03150.300) as described at the beginning of this section. 22 NCB® Periprosthetic Femur System – Surgical Technique Screw Insertion for NCB Periprosthetic Trochanter Plate For All Types of 3.5mm Screws ULS Locking Screw ∅ 3.5mm Cortical Screw ∅ 3.5mm • Do not hit the prosthesis with the tip of the drill, tap or screw. 1. To insert a 3.5mm ULS locking screw (REF 00-2369-xxx-35 / 47-2369-xxx-35) thread a Standard Drill Cannula 2.7mm (REF 00-2360-020-27) into the plate hole where you plan to place the first locking screw. 1. To insert a 3.5mm cortical screw (REF 00-4935-xxx-01 / 47-4935-xxx-01 or 02.03131.0xx) use the Double Drill Sleeve (REF 00-4808-035-01) and the 2.5mm Drill Bit (REF 00-4807-180-25). In case of hard cortical bone or the presence of a cement mantle, tap the cortex with the 3.5mm Tap (REF 00-4811-110-35). Remove the Double Drill Sleeve before using the Tap. • Take care to avoid collision of the screws by choosing the appropriate plate holes and screw lengths. • Screws may be inserted under power but should be final tightened by hand only to avoid crossthreading of the screw in the plate hole or breakage of the screw or driver. 2. Insert the 2.7mm Drill Bit (REF 00-2360-205-27) through the cannula and drill to the appropriate depth. In case of hard cortical bone or the presence of a cement mantle, tap the cortex with the 3.5mm Tap (REF 00-2360-153-35). Remove the cannula and the drill bit before using the Tap. 3. Use the Depth Gauge (REF 00-2360040-35 for screws up to 60mm to determine the appropriate screw length and insert the ULS screws using the Small Hex Screwdriver (REF 00-4812-035-00) or HEX Screwdriver Shaft (REF 00-2360-165-25). 4. Make sure that all locking screws are securely tightened before closing. 2. Use the Depth Gauge (REF 00-4810002-01) for screws up to 60mm to determine the appropriate screw length and insert the cortical screws using the Small Hex Screwdriver (REF 00-4812-035-00) or HEX Screwdriver Shaft (REF 00-2360-16525). • While inserting the first cortical screw be careful not to tilt the plate. 23 NCB® Periprosthetic Femur System – Surgical Technique NCB Periprosthetic Proximal Femur Plate – Surgical Technique Preoperative Planning and Patient Positioning Preoperative Planning Preoperative planning with adequate x-rays and x-ray templates for the NCB Periprosthetic Proximal Femur Plate (Lit 06.02024.000) and the NCB Periprosthetic Trochanter Plate (Lit 06.02262.000) is strongly recommended. If necessary, use CT scans if osteolysis is present. Patient Positioning Lay the patient in the lateral position or the supine position on a radiolucent table. Support the knee, but allow the leg to move freely. This allows determination of the proper plate length, and the appropriate type and position of screws, particularly in the presence of a hip prosthesis to prevent any interference with the hip stem. 50 cm 5 cm NCB Screw 10 cm Polyax iality 15 cm 30° 20 cm NCB Screw 45 cm NCB Screw Deep 25 cm 30 cm Thread 4 mm 4 mm NCB Unicor tical Screw NCB Cance llous Screw 5 mm 40 cm 5 mm NCB Screw 1 2 2 1 5 mm 3 3 35 cm 4 4 30 cm Determine which prosthesis has been implanted by studying the x-rays, or using the previous surgeon’s operative notes to be prepared in case of revision, and assess the stability of the prosthesis. If the prosthesis is loose, the surgical plan may change to include revision. 25 cm Right tfeL 20 cm 15 cm Transit ion Zone enoZ n oitisn arT 9 holes seloh 9 10 cm 12 holes seloh 21 5 cm 15 holes seloh 51 Magni ficatio n 1.15:1 NCB ® Lit. No. 18 holes seloh 81 5 cm Peripr osthet ic Proxim 000 – al Femur Ed. 5/2010 WL Plate 06.02024. +H844060 20240001 /$100501 10 cm 21 holes E10I © 2010. All rights Zimmer reserved. GmbH, CH-8404 Winterthur , Switzerlan 15 cm d 0086 seloh 12 20 cm 25 cm 30 cm Patient in the lateral position If intra-op fluoro is to be used, ensure the fluoro machine is not blocked by radiopaque bars of the operating table. Patient in the supine position 24 NCB® Periprosthetic Femur System – Surgical Technique Incision and Intra-operative Planning Incision Note: Check to see if the prosthesis is loose before reduction. If the prosthesis is loose, revision may be indicated. Incision Make the incision using the lateral subvastus approach or incorporate the existing incision, if applicable. Avoid excessive stripping of the soft tissue and keep the periosteum intact. Excessive stripping of the soft tissue avoided and periosteum kept intact Intra-operative Planning Take complete x-rays of the femur in the A/P and lateral views, occasional if necessary in the contra-lateral view to determine the length of the prosthesis, as well as the correct plate length to be implanted. Please refer to pages 14–16. NCB Periprosthetic Proximal Femur Plate Provisional used for intra-operative planning (optional) Note: The prosthesis length as well as the fracture location determines the plate length selected, with the length of the patient’s bone as a secondary guide. If the length of the prosthesis is between two plate sizes, choose the longer one. If desired, the NCB Periprosthetic Proximal Femur Plate Provisionals (REF 02.00024.35x) can be used to determine the suitable implant length. Provisionals are semi radiolucent and intended to be used in the open technique. Each provisional represents the implant sizes it is labeled for e.g. 12 holes. To use the provisional for the next shorter implant size (e.g. 9 hole plate), two square holes are included: – the proximal square hole indicates the end of the periprosthetic zone – the distal square hole indicates the most distal NCB Plate hole of the next shorter implant size. For every size of the NCB Periprosthetic Trochanter plate a specific provisional is provided. Warning: Do not implant or bend the provisional. 9 hole plate Provisional 12 hole plate Next shorter implant size End of periprosthetic zone Square holes are included to indicate the next shorter implant size Most distal NCB Screw hole 25 NCB® Periprosthetic Femur System – Surgical Technique Reduction and Preliminary Fixation Reduce the fracture prior to inserting the plate. Bone fragments can be secured with 2.0mm k-wires (REF 290.20.280) or clamps such as pointed reduction forceps. Ensure that preliminary fixation devices do not interfere with the future location of the plate and screws, or with the prosthesis. Insertion of the NCB Periprosthetic Proximal Femur Plate Lift the vastus lateralis’ origin with an “L” shaped incision and insert the appropriate left or right NCB Periprosthe tic Proximal Femur plate just below the vastus tubercle until you achieve good contact with the bone. Make sure that the plate is on bone distally as well. If using the NCB Periprosthetic Trochanter Plate in combination with the NCB Periprosthetic Proximal Femur Plate make sure that the two plates are assembled prior to insertion. Use the NCB DF Torque Screwdriver 6Nm (REF 02.00024.021) to screw in the two Connection Screws which come pre-assembled with the NCB Periprosthetic Trochanter Plate. Assembling the NCB Periprosthetic Trochanter Plate with the NCB Periprosthetic Proximal Femur Plate using the NCB DF Torque Screwdriver 6Nm. Note: Do not use the NCB Periprosthetic Proximal Femur Plate short or the NCB Periprosthetic Trochanter Plate as standalone implants! The NCB Periprosthetic Trochanter always needs to be assembled with a NCB Periprosthetic Proximal Femur Plate. If small bone fragments are present in the trochanteric region the use of additional cable osteosynthesis is recommended. A HEX button can be used in the nonthreaded holes of the NCB Periprosthetic Trochanter Plate to guide the cable over the plate. Surgical Technique Tip: For additional stability a cable can be used through the two most proximal holes (foreseen for HEX buttons) in the NCB Periprosthetic Trochanter Plate. Leave the cable loose on the proximal side to have space for the two proximal 3.5mm screws. After inserting the screws the cable can be placed around the femoral neck / shaft and tightened. NCB Periprosthetic Proximal Femur Plate positioned and temporarily fixed proximally and distally with 2.0mm k-wires 26 NCB® Periprosthetic Femur System – Surgical Technique Center the plate on the bone shaft in the lateral view. Ensure the distal end of the plate does not lift off the bone anteriorly or posteriorly which can cause post-op pain. Temporarily fix the plate with 2.0mm k-wires (REF 290.20.280) proximally and distally. Note: The NCB Periprosthetic Proximal Femur Plate is anatomically shaped. If additional contouring is required, use the Bending Press Inserts (REF 02.00024.315/6) and the corresponding Bending Press (REF 100.06.010). Be aware that bending the plate may decrease its fatigue strength. Furthermore, the locking mechanism of the NCB hole may be damaged and, therefore, may no longer function. Do not use a hole that has been altered by contouring for locking. If the plate is bent, the MIS guide cannot be used. Note: Do not bend the NCB Periprosthetic Femur Plate proximal to the MIS interface or the adjustment slot (short NCB Periprosthetic Proximal Femur Plate) when used in combination with the NCB Periprosthetic Trochanter Plate, because it will compromise the attachment between the two plates. Note: Do not bend the NCB Periprosthetic Trochanter Plate. Correct orientation of the concave Bending Press insert: with the word “TOP” etched on the top of the insert 27 NCB® Periprosthetic Femur System – Surgical Technique Insertion of the NCB Screws (without NCB Periprosthetic Trochanter Plate) The actual configuration should always be determined based on the fracture type and bone quality. For screw selection and the surgical procedure on how to insert a NCB Screw, please refer to pages 17–21. Note: Ensure that existing other medical devices and their fixation and/or anchorage elements are not affected or damaged by drill bits, taps, or screws. Insertion of the NCB Screws Proximally 1. Insert a NCB Screw into one of the two most proximal plate holes. Note: The screw selection should be considered with respect to the thickness of the cortex. For thin cortex, start by drilling a pilot hole for a 4.0mm NCB Screw, and subsequently enlarge it for a 5.0mm NCB Screw, if space permits. Note: Do not fully tighten the first screw as it may tilt the plate. 2. Insert the second NCB Screw in the next proximal screw hole of the plate. After the second screw is inserted in the proximal screw hole, then both screws can be tightened. Note: Screws should not be locked until the distal fragment has been fixed. First NCB Screw inserted in one of the two most proximal plate holes Second NCB Screw inserted in the opposite most proximal screw hole of the plate 28 NCB® Periprosthetic Femur System – Surgical Technique Insertion of the NCB Screws along the Shaft 3. Insert the third NCB Screw anterior or posterior to the prosthesis in a diagonal three hole pattern along the femur shaft and proximal to the fracture. 4. Insert the fourth NCB Screw in the opposite hole of the same diagonal three hole pattern, creating a grip around the prosthesis. Note: Bicortical screw fixation of at least four screws alternating anterior and posterior to the prosthesis is recommended. If there is not enough cortex for two bicortical screws around the prosthesis in the same diagonal three hole pattern, insert one screw bicortically and one 5.0mm NCB Unicortical Screw in the central hole, to provide stability. Third NCB Screw inserted anterior or posterior to the prosthesis in a diagonal three hole pattern along the femur shaft and proximal to the fracture Fourth NCB Screw inserted in the opposite hole of the same diagonal three hole pattern, creating a grip around the prosthesis 29 NCB® Periprosthetic Femur System – Surgical Technique Insertion of the NCB Screws Distally Insert at least three bicortical NCB Screws distal to the fracture area and to the prosthesis. At least three bicortical NCB Screws inserted distal to the fracture area and to the prosthesis Insertion of additional NCB Screws Insert additional NCB Screws as necessary to provide optimal fixation and remove the k-wires. If screws are not enough, cables can be added. Final View Additional NCB Screws inserted as necessary to provide optimal fixation and k-wires are removed 30 NCB® Periprosthetic Femur System – Surgical Technique Insertion of the NCB/ULS or cortical Screws (with NCB Periprosthetic Trochanter Plate) The actual configuration should always be determined based on the fracture type and bone quality. For screw selection and the surgical procedure on how to insert a NCB, ULS or cortical Screw, please refer to pages 18–22. Note: Ensure that existing other medical devices and their fixation and/or anchorage elements are not affected or damaged by drill bits, taps, or screws. Insertion of the NCB Screws Proximally 1. Insert an NCB Screw into one of the two most proximal plate holes. Note: The screw selection should be considered with respect to the thickness of the cortex. For thin cortex, start by drilling a pilot hole for a 4.0mm NCB Screw, and subsequently enlarge it for a 5.0mm NCB Screw, if space permits. Note: Do not fully tighten the first screw as it may tilt the plate. 2. Insert the second NCB Screw in the next proximal screw hole of the plate. After the second screw is inserted in the proximal screw hole, then both screws can be tightened. First NCB Screw inserted in one of the two most proximal plate holes Second NCB Screw inserted in the opposite most proximal screw hole of the plate 31 NCB® Periprosthetic Femur System – Surgical Technique Note: Screws should not be locked until the distal fragment has been fixed. Insertion of the NCB Screws along the Shaft 3. Insert the third NCB Screw anterior or posterior to the prosthesis in a diagonal three hole pattern along the femur shaft and proximal to the fracture. 4. Insert the fourth NCB Screw in the opposite hole of the same diagonal three hole pattern, creating a grip around the prosthesis. Third NCB Screw inserted anterior or posterior to the prosthesis in a diagonal three hole pattern along the femur shaft and proximal to the fracture Fourth NCB Screw inserted in the opposite hole of the same diagonal three hole pattern, creating a grip around the prosthesis Note: Bicortical screw fixation of at least four screws alternating anterior and posterior to the prosthesis is recommended. If there is not enough cortex for two bicortical screws around the prosthesis in the same diagonal three hole pattern, insert one screw bicortically and one 5.0mm NCB Unicortical Screw in the central hole, to provide stability. Insertion of the NCB Screws Distally Insert at least three bicortical NCB Screws distal to the fracture area and to the prosthesis. Insertion of additional NCB Screws Insert additional NCB Screws as necessary to provide optimal fixation and remove the k-wires. If screws are not enough, cables can be added. See page 12 for cable fixation options and instructions. Note: If adding cables to the NCB screw holes of the NCB Periprosthetic Trochanter plate, ensure that only the compatible blue NCB Cable Button (REF 47-2232060-01) is used. See page 7 for details. At least three bicortical NCB Screws inserted distal to the fracture area and to the prosthesis 32 NCB® Periprosthetic Femur System – Surgical Technique Insertion of the ULS Screws or cortical screws into the NCB Periprosthetic Trochanter Plate 1. Insert a 3.5mm screw (locking or nonlocking) into one of the two most proximal screw holes of the plate. 2. Insert the second 3.5mm screw (locking or non-locking) in the next proximal screw hole of the Trochanter Plate. 3. Insert additional 3.5mm screws on the anterior or posterior side of the NCB Periprosthetic Trochanter Plate if necessary. 4. Place additional screws close to the fracture zone. Surgical Technique Tip: If you are using a Cable, tighten the cable before placing additional 3.5mm screws in NCB Periprosthetic Trochanter Plate. 1 3 2 3 Final View Additional 3.5mm screws inserted as necessary to provide optimal fixation and k-wires are removed 33 NCB® Periprosthetic Femur System – Surgical Technique NCB Periprosthetic Distal Femur Plate – Surgical Technique Preoperative Planning and Patient Positioning Preoperative Planning Preoperative planning with adequate x-rays and x-ray templates for the NCB Periprosthetic Distal Femur Plate (Lit 06.02025.000) is strongly recommended. Patient Positioning Lay the patient in the lateral position or the supine position on a radiolucent table. Support the knee, but allow the leg to move freely. Perform the reduction as necessary. This allows for determination of the proper plate length, and the appropriate type and position of screws, particularly in the presence of a knee prosthesis to prevent any interference with the knee stem. 50 cm 5 cm NCB Screw 10 cm Polyax iality 15 cm 30° 20 cm NCB Screw 45 cm NCB Screw Deep 25 cm 30 cm Thread 4 mm 4 mm NCB Unicor tical Screw NCB Cance llous Screw 5 mm 40 cm 5 mm NCB Screw 21 holes seloh 12 5 mm 35 cm 18 holes seloh 81 30 cm Transit 15 holes ion Zone enoZ n seloh 51 oitisn arT 25 cm 12 holes seloh 21 Determine which prosthesis has been implanted by studying the x-rays, or using the previous surgeon’s operative notes to be prepared in case of revision, and assess the stability of the prosthesis. If the prosthesis is loose, the surgical plan may change to include revision. 20 cm 9 holes seloh 9 15 cm Right tfeL 10 cm 5 cm Magni ficatio n 1.15:1 NCB ® Lit. No. Peripr osthet ic Distal 06.02025. 000 – +H844060 20250001 Ed. 5/2010 /$100501 WL E10J 6 5 cm Femur Plate 5 10 cm © 2010. All rights Zimmer reserved. GmbH, CH-8404 Winterthur , Switzerlan 3 15 cm d 0086 4 2 6 1 4 5 20 cm 2 1 25 cm 3 30 cm Patient in the lateral position If intra-op fluoro is to be used, ensure the fluoro machine is not blocked by radioopaque bars of the operating table. Patient in the supine position 34 NCB® Periprosthetic Femur System – Surgical Technique Incision and Intra-operative Planning Incision Note: Check to see if the prosthesis is loose before reduction. If the prosthesis is loose, revision may be indicated. Incision A lateral incision is recommended. The skin incision should start at Gerdy’s tubercle and continue proximally to expose the fracture zone. Alternatively, incorporate the existing incision, if applicable. The muscles should be left attached to the fracture fragments for optimal blood supply. Do not strip the periosteum. Excessive stripping of the soft tissue avoided and periosteum kept intact Intra-operative Planning Take complete x-rays of the femur in the A/P and lateral views, occasional if necessary in the contra-lateral view, or a CT if osteolysis is present, to determine the length of the prosthesis, as well as the correct plate length to be implanted. Please refer to pages 14–16. Note: The prosthesis length as well as the fracture location should determine the plate length, with the length of the patient’s bone as a secondary guide. If the length of the prosthesis is between two plate sizes, choose the longer one. If desired, the NCB Periprosthetic Distal Femur Plate Provisionals (REF 02.00024.35x) can be used to determine the suitable implant length. Provisionals are semi radiolucent and intended to be used in the open technique. Each provisional represents the implant sizes it is labeled for, e.g. 12 holes. To use the provisional for the next shorter implant size (e.g. 9 hole plate), two square holes are included: – the distal square hole indicates the end of the periprosthetic zone – the proximal square hole indicates the most proximal NCB Screw hole of the next shorter implant size. Warning: Do not implant or bend the provisional. NCB Periprosthetic Distal Femur Plate Provisional used for intra-operative planning (optional) 9 hole plate Provisional 12 hole plate Next shorter implant size Most proximal NCB Screw hole Square holes are included to indicate the next shorter implant size End of periprosthetic zone 35 NCB® Periprosthetic Femur System – Surgical Technique Reduction and Preliminary Fixation Reduce the fracture prior to inserting the plate. Bone fragments can be secured with 2.0mm k-wires (REF 290.20.280) or clamps such as pointed reduction forceps. Make sure that preliminary fixation devices do not interfere with the future location of the plate and screws, or with the prosthesis. NCB Periprosthetic Distal Femur Plate temporarily fixed with 2.0mm k-wires distally and proximally Insertion of the NCB Periprosthetic Distal Femur Plate Insert the appropriate left or right NCB Periprosthetic Distal Femur plate between the vastus lateralis muscle and the periosteum. Keep the proximal end in continuous contact with the bone surface during insertion. Place the distal end of the plate as distal as possible, center the plate on the bone shaft in the lateral view and temporarily fix the plate with two 2.0mm k-wires distally and one k-wire proximally (REF 290.20.280). Avoid hitting the prosthesis. Note: The NCB Periprosthetic Distal Femur Plate is anatomically shaped. If additional contouring is required, use the Bending Press Inserts (REF 02.00024.315/6) and the corresponding Bending Press (REF 100.06.010). Be aware that bending the plate may decrease its fatigue strength. Furthermore, the locking mechanism of the NCB Screw hole may be damaged and, therefore, may no longer function. Do not use a hole that has been altered by contouring for locking. If the plate is bent, the MIS guide cannot be used. Correct orientation of the concave Bending Press insert: with the word “TOP” etched on the top of the insert 36 NCB® Periprosthetic Femur System – Surgical Technique Note: The two distal k-wire holes are aligned at 95° to the plate shaft and are parallel to the most distal central screw hole to facilitate realignment of the shaft to the anatomic axis of the femur. It is very important that the plate maintains its position once it has been aligned with the joint. Optional 4.3mm cannula for 95° screw insertion threaded into the most distal central NCB Screw hole of the NCB Periprosthetic Distal Femur Plate, to facilitate realignment of the femoral shaft to the joint. Insertion of the NCB Screws First NCB Screw inserted in the distal fragment The following configuration is one of many possibilities. The actual configuration should always be determined based on the fracture type and bone quality. For screw selection and the instruction on how to insert a NCB Screw, please refer to pages 17–21. Note: Ensure that existing intramedullary systems and their fixation and/or anchorage elements are not affected or damaged by drill bits, taps, or screws. Insertion of the NCB Screws Distally 1. Insert a 5.0mm NCB Screw (cortical or cancellous) in the distal fragment. While tightening the first screw, ensure that the plate does not tilt. Second NCB Screw inserted in the distal fragment 37 NCB® Periprosthetic Femur System – Surgical Technique Optionally, the 4.3mm cannula for 95° screw insertion (REF 02.00024.320) can be used in the most distal central plate hole. For 5.0mm NCB Cancellous Screw insertion, the 2.5mm insert (REF 02.00024.321) should be placed inside the cannula. The drill path created by using these instruments should be parallel to the knee joint to aid in realigning the anatomic axis of the femur. The screw used in this hole should be locked immediately after insertion to maintain alignment. 2. Insert a second 5.0mm NCB Screw (cortical or cancellous) in the distal fragment. Note: Except for the screw in the most distal central plate hole used to aid in realigning the anatomic axis of the femur, distal screws should not be locked until the proximal fragment has been fixed. Insertion of the NCB Screws along the Shaft 3. Insert a third NCB Screw anterior or posterior to the prosthesis in a diagonal three hole pattern along the femur shaft and distal to the fracture. Note: The screws should be chosen based on the thickness of the cortex. For thin cortical bone start by drilling a pilot hole for a 4.0mm NCB Screw, and subsequently enlarge it for a 5.0mm NCB Screw, if space permits. Third NCB Screw inserted anterior or posterior to the prosthesis in a diagonal three hole pattern along the femur shaft and distal to the fracture Fourth NCB Screw inserted in the opposite hole of the same diagonal three hole pattern, creating a grip around the prosthesis 38 NCB® Periprosthetic Femur System – Surgical Technique 4. Insert the fourth NCB Screw in the opposite hole of the same diagonal three hole pattern, creating a grip around the prosthesis. At least three bicortical NCB Screws inserted proximal to the fracture area and to the prosthesis Note: Bicortical fixation of at least four screws alternating anterior and posterior to the prosthesis is recommended. If there is not enough cortex for two bicortical screws around the prosthesis in the same diagonal three hole pattern, insert one screw bicortically and one 5.0mm NCB Unicortical Screw in the central hole, to provide stability. Insertion of the NCB Screws Proximally Insert at least three bicortical NCB Screws proximal to the fracture area and to the prosthesis. Insertion of Additional NCB Screws Insert additional NCB Screws as necessary to provide optimal fixation and remove the k-wires. Final View Additional NCB Screws inserted as necessary to provide optimal fixation and k-wires are removed 39 NCB® Periprosthetic Femur System – Surgical Technique NCB Curved Femur Shaft Plate – Surgical Technique Preoperative Planning and Patient Positioning Preoperative Planning Preoperative planning with adequate x-rays and x-ray templates for the NCB Curved Femur Shaft Plate (Lit 06.02026.000) is strongly recommended. Patient Positioning Lay the patient in the lateral position or the supine position on a radiolucent table. Support the knee, but allow the leg to move freely. Perform the reduction as necessary. This allows determination of the proper plate length, and the appropriate type and position of screws, particularly in the presence of prosthesis to prevent any interference with the stem. 35 cm 5 cm NCB Scre w Poly axiality 10 cm 30° 15 cm NCB Scre w 30 cm 14 hole s 5 mm 12 hole s 10 hole s 25 cm 20 cm Determine which prosthesis has been implanted by studying the x-rays, or using the previous surgeon’s operative notes to be prepared in case of revision, and assess the stability of the prosthesis. If the prosthesis is loose, the surgical plan may change to include revision. 15 cm 10 cm 5 cm 10 hole s 12 hole s Magnific 1.15:1 ation NCB ® Lit. No. Curved Fem 26.000 060202 – Ed. 60001/ 5/2010 $10050 WL 1E10K 14 hole s 5 cm ur Shaf 06.020 +H844 t Plate 10 cm © 2010. All rights Zimme reserve r GmbH, Switzer CH-840 d. land 4 Wintert 15 cm hur, 0086 Patient in the lateral position If intra-op fluoro is to be used, ensure the fluoro machine is not blocked by radioopaque bars of the operating table. Patient in the supine position 40 NCB® Periprosthetic Femur System – Surgical Technique Incision and Intra-operative Planning Incision Incision Make the incision using the lateral subvastus approach or incorporate the existing incision, if applicable. Avoid excessive stripping of the soft tissues and keep the periosteum intact. Exessive stripping of the soft tissue avoided and periosteum kept intact Intra-operative Planning Take complete x-rays of the femur in the A/P and lateral view and if necessary, also in the contra-lateral view, or a CT if osteolysis is present to determine the length of the prosthesis, as well as the correct plate length to be implanted. If desired, the NCB Curved Femur Shaft Plate Provisional (REF 02.00024.358) can be used to determine the suitable implant length. Provisional is semi radiolucent and intended to be used in the open technique. There is only one provisional which represents the 12 hole NCB Curved Femur Shaft Plate. To use the provisional for the next shorter implant size (10 hole plate), two square holes are included: – the proximal square hole indicates the most proximal NCB Plate hole of the next shorter implant size – the distal square hole indicates the most distal NCB Plate hole of the next shorter implant size. NCB Curved Femur Shaft Plate Provisional used for intra-operative planning (optional) 10 hole plate Provisional 12 hole plate Next shorter implant size Last NCB Plate hole Square holes are included to indicate the next shorter implant size Warning: Do not implant or bend the provisional. Last NCB Plate hole 41 NCB® Periprosthetic Femur System – Surgical Technique Reduction and Preliminary Fixation Reduce the fracture prior to inserting the plate. Bone fragments can be secured with 2.0mm k-wires (REF 290.20.280) or clamps such as pointed reduction for ceps. Make sure that preliminary fixation devices do not interfere with the future location of the plate and screws, or with the prosthesis. Insertion of the NCB Curved Femur Shaft Plate NCB Curved Femur Shaft Plate centered over the fracture and temporarily fixed with two 2.0mm k-wires Compression guide placed so that the drill hole is at the end of the compression slots farthest from the fracture site. The following example shows a case without a prosthesis. The NCB Curved Femur Shaft Plate is placed on the lateral femur centered over the fracture. Temporarily fix the plate with two 2.0mm k-wires (REF 290.20.280), one proximally and one distally. Note: The NCB Curved Femur Shaft Plate is anatomically shaped. If additional contouring is required, use the Bending Press Inserts (REF 02.00024.315/6) and the corresponding Bending Press (REF 100.06.010). Be aware that bending the plate may decrease its fatigue strength. Furthermore, the locking mechanism of the NCB Screw hole may be damaged and, therefore, may no longer function. Do not use a hole that has been altered by contouring for locking. Correct orientation of the concave Bending Press insert: with the word “TOP” etched on the top of the insert 42 NCB® Periprosthetic Femur System – Surgical Technique Insertion of the NCB Screws The NCB Curved Femur Shaft Plate has two compression slots to allow for axial adjustment while positioning the plate, as well as for axial compression. Note: It is possible to get 1 or 2mm of axial compression with the NCB Curved Femur Shaft Plate. For 2mm of compression, insert the NCB Screws into the compression holes first (like in the example shown in this surgical technique). For 1mm of compression, insert a NCB Screw into a NCB Plate hole, and then use the compression slot on the opposite side of the fracture. If more compression is needed, use the Articulated Tension Device* (REF 00-4817-005-00) after only one side of the plate has been fixed. This instrument can be attached to the bone, using a 4.0mm NCB Screw. For screw selection and insertion, please refer to pages 17–21. Note: Screws should not be locked until both sides of the fragment have been fixed. 1. For 2.0mm of axial compression, drill the first hole in one of the two compression slots in the compression position using the NCB Compression Drill Guide for 5.0mm NCB Screws (REF 02.00024.335) and the 4.3mm drill bit (REF 02.00024.002). Place the compression guide so that the drill hole is at the end of the compression slots farthest from the fracture site. Partially insert a 5.0mm NCB Screw into the compression slot but do not tighten it. * Not included in NCB Periprosthetic Femur instrument set. First 5.0mm NCB Screw partially inserted in one of the two compression slots without tightening it Second 5.0mm NCB Screw partially inserted in the other compression slot without tightening it, and k-wires removed 43 NCB® Periprosthetic Femur System – Surgical Technique 2. Partially insert a 5.0mm NCB Screw into the other compression slot, also in the compression position, but do not tighten it. K-wires removed and axial compression achieved by tightening the 5.0mm NCB Screws in the two compression slots 3. Remove the two 2.0mm k-wires. To achieve axial compression, tighten the NCB Screws in the two compression slots by using the NCB Hexagonal Screwdriver (REF 02.00024.023). 4. Insert additional 5.0mm NCB Screws as necessary, first near the fracture site and then proximal/distal to the fracture, ensuring purchase in a minimum of six cortices on each side of the fracture, spaced on the entire length of the plate. If desired, slightly loosen the 5.0mm NCB Screws in the two compression slots to avoid contact between the plate and the bone. Additional 5.0mm NCB Screws inserted as necessary first near the fracture site and then proximal/distal to the fracture, ensuring purchase in a minimum of six cortices with the screws on each side of the fracture spaced on the entire length of the plate 44 NCB® Periprosthetic Femur System – Surgical Technique NCB Bone Spacers (Optional) Use at least two bone spacers in the diaphyseal area of all NCB Plates, to avoid contact of the plate with the bone surface reducing the risk of periosteal blood supply impairment. Two NCB Bone Spacers used in the diaphyseal area of a NCB Plate, to avoid contact of the plate with the bone (Non Contact Bridging) The spacers may also be used if the fracture has been reduced using a cable, to avoid contact between the plate and the cable. The spacers are available in 1mm, 2mm and 3mm (REF 02.03150.311 to 313) sizes. Spacer 1 to 3 mm Note: Insert the bone spacers into the NCB Screw holes before plate insertion. The spacers are single use only, and they can be removed after locking the screws. NCB Blind Screw Inserts (Optional) To prevent bone ingrowth into empty NCB Screw holes, use the NCB Blind Screw Inserts (REF 02.03150.310). NCB Blind Screws inserted in a NCB Plate to prevent bone ingrowth Note: Hand tighten only. Blind Screw Insert 45 NCB® Periprosthetic Femur System – Surgical Technique Tips and Tricks for the NCB Periprosthetic Femur System Drilling into Cement Mantle Drilling into Cortical Bone Metal Abrasion Wear In patients with cemented prostheses, the insertion of screws may occur in the presence of a cement mantle. This can cause cracks, which may cause loosening of the prosthesis. Be careful not to hit the prosthesis when tapping, drilling and inserting screws. In order to go around the stem of the prosthesis and achieve bicortical fixation with the offset holes of the diagonal three hole pattern, it may be necessary to drill completely into cortical bone, which can lead to heat necrosis of the bone. Metal abrasion wear due to contact between screws, plates, prostheses, cable buttons, and cables may occur. Tips, which may Mitigate this Risk • Use a lower speed for drilling into the cement mantle to prevent overheating and avoid cement melting • Use a higher feed rate (increased drill force) • Use only new sharp drill bits. Change drills frequently and do not use worn ones • Titanium nitride coated (gold) drill bits are available: • 3.0mm drill bit (REF 02.00024.301) • 3.5mm drill bit (REF 02.00024.325) • 4.5mm drill bit (REF 02.00024.330) • Use taps • Overdrilling by using drill bits of a slightly larger diameter (0.2mm) may reduce cracking in the cement mantle during screw insertion. In the NCB Periproshetic Femur set a 3.5mm drill bit (REF 02.00024.325) can be used in place of the 3.3mm drill bit, and a 4.5mm drill bit (REF 02.00024.330) can be used in place of the 4.3mm drill bit. These drill bits are offered together with their corresponding drill guides. Warning: Drilling and inserting screws into the outer edge of the cortical bone may also lead to cortical fracture. Tips, which may Mitigate these Risks • Use only new sharp drill bits. Change drills frequently and do not use worn ones • Pull the drill bit out often and clean its flutes • Use extensive irrigating fluid (i.e. saline water) directed at the point of penetration of the cortex • Use taps • In patients with thin cortical bone, away from the fracture area, use NCB screws of a smaller diameter like the 4.0mm NCB Screws, or the 4.0mm NCB Deep Thread Screws. Note: Overdrilling the cement mantle by 0.2mm does reduce pull out strength by about 20%. However, within the cement mantle pull out strength is still more than 2000 N.4 4 J. Kampshoff et al.: The treatment of periprosthetic fractures with locking plates: effect of drill and screw type on cement mantles: a biomechanical analysis, Archives of Orthopedic and Trauma Surgery, Springer, March 2009. Tip, which may Mitigate this Risk Use only Zimmer products compatible with the NCB Periprosthetic Femur System, which are described in this surgical technique. 46 NCB® Periprosthetic Femur System – Surgical Technique Implant Removal To remove the NCB Periprosthetic Proximal Femur, Distal Femur, and Curved Femur Shaft Plates, first remove all locking caps (REF 02.03150.300). Then, loosen all the NCB Screws without completely removing them (this prevents rotation of the bone plate when removing the last screw). Finally, completely remove all NCB Screws. Note: Make sure that the tip of the NCB Hexagonal Screwdriver (REF 02.00024.023) is correctly placed in the hex drive of the locking caps and/ or NCB Screws. Failure to do so could damage the hex drive and complicate the extraction of the implant. Removal Tip In case of difficulties while loosening the NCB Screws, tighten the screws slightly before loosening them. It is possible to remove only the NCB Periprosthetic Trochanter Plate and leave the NCB Periprosthetic Proximal Femur Plate in place. Do not forget to remove the two connection screws using the 3.5mm Hex screwdriver. 47 NCB® Periprosthetic Femur System – Surgical Technique Product Information – Implants Plates NCB Periprosthetic Proximal Femur Plates, Ti6Al4V Right REF REF Sterile Holes — 02.02263.000 N/A 02.03263.009 02.02263.009 9 02.03263.012 02.02263.012 12 02.03263.015 02.02263.015 15 02.03263.018 02.02263.018 18 02.03263.021 02.02263.021 21 Left — 02.02263.100 N/A 02.03263.109 02.02263.109 9 02.03263.112 02.02263.112 12 02.03263.115 02.02263.115 15 02.03263.118 02.02263.118 18 02.03263.121 02.02263.121 21 NCB Periprosthetic Distal Femur Plates, Ti6Al4V Right Length mm REF 115 245 285 324 363 401 02.03264.009 02.02264.009 9 02.03264.012 02.02264.012 12 02.03264.015 02.02264.015 15 02.03264.018 02.02264.018 18 02.03264.021 02.02264.021 21 115 245 285 324 363 401 REF Sterile Holes Length mm 238 278 317 355 393 Left 02.03264.109 02.02264.109 9 02.03264.112 02.02264.112 12 02.03264.115 02.02264.115 15 02.03264.118 02.02264.118 18 02.03264.121 02.02264.121 21 238 278 317 355 393 NCB Curved Femur Shaft Plates, Ti6Al4V NCB Periprosthetic Trochanter Plates*, Ti6Al4V REF – – – – REF Sterile Size 02.02263.201 02.02263.202 02.02263.301 02.02263.302 right narrow right wide left narrow left wide REF Connection Screw for NCB Periprosthetic Trochanter Plate, Ti6Al4V REF – REF Sterile Holes 02.03265.010 02.02265.010 10 02.03265.012 02.02265.012 12 02.03265.014 02.02265.014 14 REF Sterile 02.02266.002 Materials NCB Periprosthetic Plates and Screws are made of Ti6Al4V, ISO 5832-3, ASTM F136 * The NCB Periprosthetic Trochanter Plate is packed together with two connection screws which are preassembled. Length mm 210 249 289 48 NCB® Periprosthetic Femur System – Surgical Technique Screws NCB Locking Caps, Spacers, Blind Screw Inserts, Ti6Al4V REF REF Sterile Description 02.03150.300 02.03150.310 02.03150.311 02.03150.312 02.03150.313 02.02150.300 02.02150.310 02.02150.311 02.02150.312 02.02150.313 Locking cap Blind screw insert Spacer 1mm Spacer 2mm Spacer 3mm NCB Screws, ∅ 5.0mm Ti6Al4V ∅ 4.4 ∅5 ∅ 6.2 L REF Sterile ∅ 4.4 ∅ 5 ∅ 6.2 1.75 L REF REF Sterile Length mm 02.03151.010 02.02151.010 10 02.03151.012 02.02151.012 12 02.03151.014 02.02151.014 14 02.03151.016 02.02151.016 16 02.03151.018 02.02151.018 18 02.03151.020 02.02151.020 20 NCB Cancellous Screws, ∅ 5.0mm, 32mm Thread Ti6Al4V 1.75 REF NCB Unicortical Screws, ∅ 5.0mm, Ti6Al4V Length mm 02.03150.022 02.02150.022 22 02.03150.024 02.02150.024 24 02.03150.026 02.02150.026 26 02.03150.028 02.02150.028 28 02.03150.030 02.02150.030 30 02.03150.032 02.02150.032 32 02.03150.034 02.02150.034 34 02.03150.036 02.02150.036 36 02.03150.038 02.02150.038 38 02.03150.040 02.02150.040 40 02.03150.042 02.02150.042 42 02.03150.044 02.02150.044 44 02.03150.046 02.02150.046 46 02.03150.048 02.02150.048 48 02.03150.050 02.02150.050 50 02.03150.055 02.02150.055 55 02.03150.060 02.02150.060 60 02.03150.065 02.02150.065 65 02.03150.070 02.02150.070 70 02.03150.075 02.02150.075 75 02.03150.080 02.02150.080 80 02.03150.085 02.02150.085 85 02.03150.090 02.02150.090 90 02.03150.095 02.02150.095 95 02.03150.100 02.02150.100 100 Materials NCB Periprosthetic Plates, Screws, Locking Caps, Spacers, and Blind Screw Inserts are made of Ti6Al4V, ISO 5832-3, ASTM F136 ∅ 2.9 ∅ 6.2 ∅5 1.75 L REF REF Sterile Length mm 02.03152.050 02.02152.050 50 02.03152.055 02.02152.055 55 02.03152.060 02.02152.060 60 02.03152.065 02.02152.065 65 02.03152.070 02.02152.070 70 02.03152.075 02.02152.075 75 02.03152.080 02.02152.080 80 02.03152.085 02.02152.085 85 02.03152.090 02.02152.090 90 02.03152.095 02.02152.095 95 02.03152.100 02.02152.100 100 49 NCB® Periprosthetic Femur System – Surgical Technique NCB Screws ∅ 4.0mm, Deep Thread, Ti6Al4V NCB Screws, ∅ 4.0mm Ti6Al4V ∅ 3.4 ∅4 ∅ 2.9 ∅ 6.2 ∅4 1.75 1.75 L REF L REF Sterile Length mm 02.03155.020 02.02155.020 02.03155.022 02.02155.022 02.03155.024 02.02155.024 02.03155.026 02.02155.026 02.03155.028 02.02155.028 02.03155.030 02.02155.030 02.03155.032 02.02155.032 02.03155.034 02.02155.034 02.03155.036 02.02155.036 02.03155.038 02.02155.038 02.03155.040 02.02155.040 02.03155.042 02.02155.042 02.03155.044 02.02155.044 02.03155.046 02.02155.046 02.03155.048 02.02155.048 02.03155.050 02.02155.050 02.03155.055 02.02155.055 02.03155.060 02.02155.060 02.03155.065 02.02155.065 ∅ 2.7 ∅ 3.5 REF REF Sterile Length mm 02.03154.020 02.02154.020 02.03154.022 02.02154.022 02.03154.024 02.02154.024 02.03154.026 02.02154.026 02.03154.028 02.02154.028 02.03154.030 02.02154.030 02.03154.032 02.02154.032 02.03154.034 02.02154.034 02.03154.036 02.02154.036 02.03154.038 02.02154.038 02.03154.040 02.02154.040 02.03154.042 02.02154.042 02.03154.044 02.02154.044 02.03154.046 02.02154.046 02.03154.048 02.02154.048 02.03154.050 02.02154.050 02.03154.055 02.02154.055 02.03154.060 02.02154.060 02.03154.065 02.02154.065 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 55 60 65 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 55 60 65 ULS Screws ∅ 3.5mm, Cortical Ti6Al4V ULS Screws ∅ 3.5mm, Locking Ti6Al4V ∅ 1.0 ∅ 6.2 ∅ 5.6 ∅ 2.4 ∅ 3.5 ∅ 5.9 1.25 L L REF REF Sterile 00-2369-012-35 47-2369-012-35 00-2369-014-35 47-2369-014-35 00-2369-016-35 47-2369-016-35 00-2369-018-35 47-2369-018-35 00-2369-020-35 47-2369-020-35 00-2369-022-35 47-2369-022-35 00-2369-024-35 47-2369-024-35 00-2369-026-35 47-2369-026-35 00-2369-028-35 47-2369-028-35 00-2369-030-35 47-2369-030-35 00-2369-032-35 47-2369-032-35 00-2369-034-35 47-2369-034-35 00-2369-036-35 47-2369-036-35 00-2369-038-35 47-2369-038-35 00-2369-040-35 47-2369-040-35 00-2369-042-35 47-2369-042-35 00-2369-044-35 47-2369-044-35 00-2369-046-35 47-2369-046-35 00-2369-048-35 47-2369-048-35 00-2369-050-35 47-2369-050-35 00-2369-052-35 47-2369-052-35 00-2369-054-35 47-2369-054-35 00-2369-056-35 47-2369-056-35 00-2369-058-35 47-2369-058-35 00-2369-060-35 47-2369-060-35 Length mm REF 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 00-4935-012-01 47-4935-012-01 00-4935-014-01 47-4935-014-01 00-4935-016-01 47-4935-016-01 00-4935-018-01 47-4935-018-01 00-4935-020-01 47-4935-020-01 00-4935-022-01 47-4935-022-01 00-4935-024-01 47-4935-024-01 00-4935-026-01 47-4935-026-01 00-4935-028-01 47-4935-028-01 00-4935-030-01 47-4935-030-01 00-4935-032-01 47-4935-032-01 00-4935-034-01 47-4935-034-01 00-4935-036-01 47-4935-036-01 00-4935-038-01 47-4935-038-01 00-4935-040-01 47-4935-040-01 00-4935-045-01 47-4935-045-01 00-4935-050-01 47-4935-050-01 00-4935-055-01 47-4935-055-01 00-4935-060-01 47-4935-060-01 REF Sterile Materials NCB Screws and ULS Screws are made of Ti6Al4V, ISO 5832-3, ASTM F136. Length mm 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 45 50 55 60 50 NCB® Periprosthetic Femur System – Surgical Technique Cortical Screws, ∅ 3.5mm (EMEA only), Ti6Al7Nb ∅ 2.4 ∅ 3.5 MotionLoc Screws, ∅ 5.0mm Cortical, Self Tapping, Ti6Al4V **NCB ∅ 5.9 ∅ 6.2 ∅5 1.25 L REF L REF Sterile 02.03131.012 – 02.03131.014 – 02.03131.016 – 02.03131.018 – 02.03131.020 – 02.03131.022 – 02.03131.024 – 02.03131.026 – 02.03131.028 – 02.03131.030 – 02.03131.032 – 02.03131.034 – 02.03131.036 – 02.03131.038 – 02.03131.040 – 02.03131.045 – 02.03131.050 – 02.03131.055 – 02.03131.060 – Length mm 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 45 50 55 60 REF REF Sterile 02.03161.030 02.03161.032 02.03161.034 02.03161.036 02.03161.038 02.03161.040 02.03161.042 02.03161.044 02.03161.046 02.03161.048 02.03161.050 02.03161.052 02.03161.054 02.03161.056 02.03161.058 02.03161.060 02.02161.030 02.02161.032 02.02161.034 02.02161.036 02.02161.038 02.02161.040 02.02161.042 02.02161.044 02.02161.046 02.02161.048 02.02161.050 02.02161.052 02.02161.054 02.02161.056 02.02161.058 02.02161.060 Length mm 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Compatible Zimmer Products with the NCB Periprosthetic Femur System REF sterile Description 47-2232-060-00* 47-2232-060-01 00-2232-002-35 00-2232-002-28 00-2232-004-18 NCB Polyaxial Locking Plate Cable Button, Gold, 2.5mm Hex Drive, Material: Ti6Al4V NCB Polyaxial Locking Plate Cable Button, Blue, 2.5mm Hex Drive, Material: Ti6Al4V Hex Buttons, 3.5mm Hex, Material: C.P. Titanium Cable-Ready Cable Assembly Cerclage, ∅ 1.8mm, L. 914mm, Material: CoCr Cable-Ready Cable Assembly Cerclage, ∅ 1.8mm, L. 635mm, Material: CoCr Materials 3.5mm Cortical Screws are made of Ti6Al7Nb, ISO 5832-11, ASTM F1295; the NCB Screws are made of Ti6Al4V, ISO 5832-3, ASTM F136. * Not available in Europe, Middle East, and Africa screws are compatible with the NCB PP Femur plates only in United States (US), Australia/New Zealand, Canada, European Union (EU), European Free Trade Association (EFTA), South Korea, Singapore, Taiwan and Thailand ** MotionLoc NCB® Periprosthetic Femur System – Surgical Technique Product Information – Instruments Standard Instruments NCB Periprosthetic Femur Standard Instruments REF Description 02.00024.002 02.00024.005 02.00024.010 02.00024.011 02.00024.021 02.00024.023 02.00024.024 02.00024.111 02.00024.118 02.00024.121 02.00024.315 02.00024.316 02.00024.320 02.00024.321 02.00024.335 02.00024.340 02.00024.341 02.00024.364 100.90.005 100.90.210 103.25.180 109.01.020 290.20.280 NCB Drill Bit ∅ 4.3mm, L. 195mm NCB Measuring Device, L. 110mm NCB Drill Guide ∅ 2.5mm NCB Drill Guide ∅ 4.3mm NCB DF Torque Screwdriver, 6Nm, L. 280mm NCB Hexagonal Screwdriver for femur SW 3.5 NCB Hexagonal Screwdriver shaft SW 3.5 NCB Drill Guide ∅ 3.3mm for screws ∅ 4.0/4.5mm NCB Drill Bit ∅ 3.3mm, with quick coupling L. 195mm NCB Locking screw holder for hexagonal screwdriver 3.5mm Bending press insert, concave Bending press insert, convex NCB Periprosthetic cannula ∅ 4.3mm for 95° screw insertion NCB Periprosthetic insert ∅ 2.5mm, for use with 4.3mm cannula NCB Compression Drill Guide for 5.0mm screws NCB Tap ∅ 4.0mm, with quick coupling, L. 250mm NCB Tap ∅ 5.0mm, with quick coupling, L. 250mm NCB Plate Inserter with 2mm cannulation Self-holding screw forceps T-handle with quick coupling for taps Two-fluted drill bit ∅ 2.5mm, with quick coupling, L. 154/180mm Small hexagonal screwdriver without holding sleeve, hexagon 2.5mm Kirschner wire with trocar tip ∅ 2mm, L. 280mm NCB Periprosthetic Trochanter Standard Instruments REF Description 00-4806-110-25 Drill Bit, Q/C, ∅ 2.5mm, L. 110mm 00-4806-110-35 Drill Bit, Q/C, ∅ 3.5mm, L. 110mm 00-4808-035-01 3.5mm/2.5mm Double Drill Sleeve 00-4809-035-00 Countersink, Q/C, for 3.5mm and 4.0mm screws 00-4810-002-01 Small Depth Gauge for 2.7/3.5/4.0 screws to 60mm 00-4811-110-35 Tap ∅ 3.5mm, with quick coupling, L. 110mm (for cortical screws) 00-4812-000-00 Screw holding forceps 00-4812-035-00 Small Hex Screwdriver, 2.5mm Hex 00-2360-165-25 Small Hex Screwdriver Shaft, with Q/C, 2.5mm Hex, 140mm 00-4812-035-05 Holding sleeve for small hexagonal screwdrivers 00-2360-020-27 2.7mm Drill Standard Cannula 00-2360-040-35 Locking Small Depth Gauge 00-2360-088-00 Cannula inserter 00-2360-205-27 2.7mm Standard Drill, QC, 205mm long 00-2360-153-35 Tap ∅ 3.5mm, with quick coupling, L. 110mm (for locking screws) 51 52 NCB® Periprosthetic Femur System – Surgical Technique Optional Instruments NCB Instruments for NCB Screws, ∅ 4mm, Deep Thread REF Description 02.00024.301 02.00024.305 02.00024.310 NCB Drill Bit ∅ 3.0mm, with quick coupling, L. 195mm NCB Tap ∅ 4.0mm, with quick coupling, for deep thread screw, L. 250mm NCB Drill Guide ∅ 3.0mm NCB Instruments for Overdrilling into Cement for NCB Screws ∅ 4.0mm and 5.0mm REF Description 02.00024.325 NCB Drill Bit ∅ 3.5mm, with quick coupling, L. 195mm 02.00024.326 NCB Drill Guide ∅ 3.5mm 02.00024.330 NCB Drill Bit ∅ 4.5mm, with quick coupling, L. 195mm 02.00024.331 NCB Drill Guide ∅ 4.5mm NCB Long Instruments REF Description 02.00024.340 02.00024.341 02.00024.342 02.00024.343 02.00024.344 02.00024.345 02.00024.346 02.00024.347 02.00024.348 NCB Tap ∅ 4.0mm, with quick coupling, L. 250mm NCB Tap ∅ 5.0mm, with quick coupling, L. 250mm NCB Drill Bit ∅ 2.5mm, with quick coupling, L. 245mm NCB Drill Guide ∅ 2.5mm, long NCB Drill Bit ∅ 3.3mm, with quick coupling, L. 245mm NCB Drill Guide ∅ 3.3mm, long NCB Drill Bit ∅ 4.3mm, with quick coupling, L. 245mm NCB Drill Guide ∅ 4.3mm, long NCB Periprosthetic cannula ∅ 4.3mm for 95° screw insertion, long NCB Instruments for Lagging NCB Screws REF Description 02.00024.360 02.00024.361 NCB Drill Bit ∅ 4.0mm, with quick coupling, L. 245mm NCB Drill Guide ∅ 4.0mm, long NCB Periprosthetic Femur Provisionals REF Description 02.00024.350 02.00024.351 02.00024.352 02.00024.353 02.00024.354 02.00024.355 02.00024.356 02.00024.357 02.00024.358 NCB Periprosthetic Proximal Femur Plate Provisional, right, 15/18 hole plates NCB Periprosthetic Proximal Femur Plate Provisional, left, 15/18 hole plates NCB Periprosthetic Proximal Femur Plate Provisional, right, 9/12 hole plates NCB Periprosthetic Proximal Femur Plate Provisional, left, 9/12 hole plates NCB Periprosthetic Distal Femur Plate Provisional, right, 15/18 hole plates NCB Periprosthetic Distal Femur Plate Provisional, left, 15/18 hole plates NCB Periprosthetic Distal Femur Plate Provisional, right, 9/12 hole plates NCB Periprosthetic Distal Femur Plate Provisional, left, 9/12 hole plates NCB Curved Femur Shaft Plate Provisional, 10/12/14 hole plates NCB Periprosthetic Trochanter Provisionals REF Description 02.00024.411 02.00024.412 02.00024.413 02.00024.414 NCB Periprosthetic Trochanter Plate Provisional, narrow, right NCB Periprosthetic Trochanter Plate Provisional, narrow, left NCB Periprosthetic Trochanter Plate Provisional, wide, right NCB Periprosthetic Trochanter Plate Provisional, wide, left NCB® Periprosthetic Femur System – Surgical Technique Sterile Instruments REF Description 02.02024.342 NCB Drill Bit ∅ 2.5mm, with quick coupling, L=245mm 02.02024.344 NCB Drill Bit ∅ 3.3mm, with quick coupling, L=245mm 02.02024.346 NCB Drill Bit ∅ 4.3mm, with quick coupling, L=245mm 02.02024.360 NCB Drill Bit ∅ 4.0mm, with quick coupling, L=245mm Graphic Cases for the NCB Periprosthetic Femur System Standard Graphic Cases REF Description 02.00024.901 NCB Periprosthetic Plate System, Femur Plates, base 02.00024.902 NCB Periprosthetic Plate System, Femur Screws and Instruments, base and trays 02.00024.903 NCB Periprosthetic Plate System, Femur Screws and Instruments, base 02.00024.904 NCB Periprosthetic Plate System, Femur Screws and Instruments, standard screw caddy 02.00024.905 NCB Periprosthetic Plate System, Femur Screws and Instruments, deep thread screw caddy 02.00024.906 NCB Periprosthetic Plate System, Femur Screws and Instruments, tray 02.00024.907 NCB Periprosthetic Plate System, Femur Screws and Instruments, locking caps and spacers 02.00024.930 NCB Periprosthetic Trochanter Plate, Add-On set 02.00024.931 NCB Periprosthetic Trochanter Plate, Add-On set, base 02.00024.932 NCB Periprosthetic Trochanter Plate, Add-On set, screw caddy 02.00024.933 NCB Periprosthetic Trochanter Plate, Add-On set, top tray 02.00024.934 NCB Periprosthetic Trochanter Plate, Add-On set, bottom tray 00-5900-099-00 Generic Stackable Lid Assembly Optional Graphic Cases REF Description 02.00024.908 NCB Periprosthetic Plate System, Femur Provisionals, base 02.00024.909 NCB Periprosthetic Plate System, Add-On to NCB-DF, base and trays 02.00024.910 NCB Periprosthetic Plate System, Add-On to NCB-DF, base 02.00024.911 NCB Periprosthetic Plate System, Add-On to NCB-DF, screw caddy 02.00024.912 NCB Periprosthetic Plate System, Add-On to NCB-DF, tray 00-5900-099-00 Generic Stackable Lid Assembly 53 54 NCB® Periprosthetic Femur System – Surgical Technique Planning Aid 5 cm 10 cm 15 cm 25 cm 20 cm 5 cm 30 cm 50 cm NCB Screw Polyaxiality NCB Unicortical Screw NCB Screw 15 cm 10 cm 25 cm 20 cm 50 cm NCB Screw Polyaxiality NCB Screw NCB Unicortical Screw 30° 5 mm 4 mm 30° 4 mm NCB Screw Deep Thread 5 mm NCB Screw NCB Cancellous Screw 45 cm 45 cm 5 mm 4 mm 5 mm 1 2 1 2 NCB Screw Deep Thread NCB Screw NCB Cancellous Screw 5 mm 5 mm 4 mm 3 3 40 cm 4 4 40 cm Cortical Screw ULS Locking Screw 3.5 mm 35 cm 2 35 cm Wide 3.5 mm 1 1 2 3 4 30 cm 5 6 7 8 1 3 4 5 6 7 2 8 30 cm 4 3 6 5 25 cm Right tfeL 25 cm 20 cm 9 holes 8 seloh 9 7 20 cm 15 cm Transition Zone enoZ noitisnarT 12 holes seloh 21 2 Narrow 10 cm 1 2 15 cm seloh 51 1 3 4 15 holes 5 6 8 7 1 3 4 5 6 7 2 8 4 3 18 holes seloh 81 5 cm 10 cm Magnification 1.15:1 21 holes 6 seloh 12 5 cm 10 cm 15 cm 20 cm 25 cm 5 30 cm NCB® Periprosthetic Proximal Femur Plate Lit. No. 06.02024.000 – Ed. 2011-12 WL +H84406020240001/$111201L11P © 2011. All rights reserved. Zimmer GmbH, CH-8404 Winterthur, Switzerland 5 cm NCB Periprosthetic Proximal Femur Plate X-ray Template Lit.No. 06.02024.000 Lit.No. 97-2370-050-02 (US only) Right tfeL Magnification 1.15:1 8 5 cm 10 cm 15 cm 20 cm 7 25 cm NCB® Periprosthetic Trochanter Plate Lit. No. 06.02262.000 – Ed. 2012-01 WL +H84406022620001/$120101A12I © 2012. All rights reserved. Zimmer GmbH, CH-8404 Winterthur, Switzerland NCB Periprosthetic Trochanter Plate X-ray Template Lit.No. 06.02262.000 Lit.No. 97-2370-008-00 (US only) 55 NCB® Periprosthetic Femur System – Surgical Technique 5 cm 10 cm 15 cm 25 cm 20 cm 30 cm 5 cm 50 cm NCB Screw Polyaxiality 15 cm 10 cm NCB Unicortical Screw NCB Screw 35 cm NCB Screw Polyaxiality NCB Screw 30° 5 mm 4 mm NCB Screw Deep Thread 30° NCB Screw NCB Cancellous Screw 45 cm 5 mm 5 mm 5 mm 4 mm 14 holes 21 holes seloh 12 30 cm 40 cm 12 holes 18 holes seloh 81 35 cm 10 holes 15 holes seloh 51 25 cm 30 cm 12 holes Transition Zone seloh 21 enoZ noitisnarT 9 holes seloh 9 25 cm 20 cm 20 cm 15 cm Right tfeL 15 cm 10 cm 6 6 5 cm 2 5 cm 10 cm 15 cm 20 cm 2 1 3 Magnification 1.15:1 4 5 4 5 10 cm 1 3 25 cm 30 cm NCB® Periprosthetic Distal Femur Plate Lit. No. 06.02025.000 – Ed. 2011-12 WL +H84406020250001/$111201L11Q © 2011. All rights reserved. Zimmer GmbH, CH-8404 Winterthur, Switzerland 10 holes 5 cm NCB Periprosthetic Distal Femur Plate X-ray Template Lit.No. 06.02025.000 Lit.No. 97-2370-050-01 (US only) 12 holes 14 holes Magnification 1.15:1 5 cm 10 cm 15 cm NCB® Curved Femur Shaft Plate Lit. No. 06.02026.000 – Ed. 2011-12 WL +H84406020260001/$111201L11R © 2011. All rights reserved. Zimmer GmbH, CH-8404 Winterthur, Switzerland NCB Curved Femur Shaft Plate X-ray Template Lit.No. 06.02026.000 Lit.No. 97-2370-050-03 (US only) This documentation is intended exclusively for physicians and is not intended for laypersons. Information on the products and procedures contained in this document is of a general nature and does not represent and does not constitute medical advice or recommendations. Because this information does not purport to constitute any diagnostic or therapeutic statement with regard to any individual medical case, each patient must be examined and advised individually, and this document does not replace the need for such examination and/or advice in whole or in part. Please refer to the package inserts for important product information, including, but not limited to, indications, contraindications, warnings, precautions, and adverse effects. Contact your Zimmer representative or visit us at www.zimmer.com Lit.No. 06.02013.012 – Ed. 2015-05 ZHUB Copyright 2015 by Zimmer GmbH Printed in Switzerland Subject to change without notice Disclaimer
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