Zimmer® Herbert™ Cannulated Bone Screw Zimmer Herbert Surgical Technique
2016-04-01
: Pdf Zimmer Herbert Cannulated Screw Surgical Technique Zimmer_Herbert_Cannulated_Screw_Surgical_Technique 3 2016 pdf
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Zimmer Zimmer®® Herbert Herbert™™ Cannulated Cannulated Bone BoneScrew Screw An innovative option for managing the reduction and fixation of difficult fractures Specifically Designed for Problem Internal Fixation The headless design of the Herbert Screw means that the screw is completely embedded in the bone, without any protrusions to cause tissue irritation even in intra-articular placement. • Cannulation helps ensure precise placement of the screw. • Herbert Cannulated Guide Pins hold the fragment and act as guides for drilling, tapping, and screw placement. • The Tivanium® Ti-6A1-4V Alloy used in fabricating these screws is highly biocompatible and corrosion resistant. • The thread design of the Herbert Screw creates compression and provides fracture stability. As the proximal threads engage the bone, the fracture is drawn together, helping to create and maintain stability of the fracture site. INDICATIONS FOR USE The Herbert Cannulated Bone Screw System (4.5mm and 6.5mm diameter) are indicated for fracture fixation, reconstruction, osteotomy, and arthrodesis of various bones and bone fragments including joint fusions (arthrodeses) in the foot and fixation of intra-articular fractures of the humerus, femur and tibia. 4.5mm Herbert Cannulated Bone Screw 6.5mm Herbert Cannulated Bone Screw The Herbert Cannulated Bone Screw is designed for the management of fractures where minimal tissue coverage makes standard screw use inappropriate or where extreme precision in fragment alignment is imperative. Such locations might include fractures of the: • Olecranon and malleolar region • Distal femur • Proximal tibia • Distal tibia 1 2 4 5 Guide Pin After initial reduction of the fracture fragments is obtained, the specifically designed Herbert Cannulated Guide Pin is placed through the fragments to act as a Guide Wire for the rest of the placement operation. The Guide Pin should not perforate the opposite cortex. Distal Drill Bit Insert the Distal Drill Bit over the Guide Pin and drill to the desired depth. At this time the surgeon may choose to drill 5mm less than the pilot length. Option: The Distal Drill Bit may be inserted into a Jacob’s Chuck to the appropriate calibration, thus allowing the surgeon to utilize the Chuck as an automatic stop. Depth Gauge Use the Depth Gauge to measure the length of the Guide Pin in the bone. If the Guide perforates the opposite cortex, corresponding compensation must be made when selecting the implant length. Cannulated Tap Insert the Cannulated Tap over the Guide Pin and tap the channel to prepare for the leading screw threads of the implant. Tap depth should be equal to the depth created by the Distal Drill Bit. 3 Proximal Drill Bit Insert the Proximal Drill Bit over the Guide Pin to drill the cortex. The Drill Bit should be advanced until the built-in stop contacts the cortex of the bone. 6 Insert Screw In determining screw length, the surgeon may wish to choose an implant 5mm to 10mm shorter than the measured pilot length. Using the Cannulated Screwdriver, insert the Herbert Cannulated Screw. As the trailing threads engage the bone, reduction is achieved. These trailing threads should be seated approximately 1mm below the cortex of the bone to ensure that there is no intra-articular protrusion or interference with the joint function. Order Information Description Herbert Cannulated Bone Screw Set (Includes the following implants, instruments and case components) Qty. in Set Sets 00-1155-093-00 Herbert Cannulated Bone Screw Instrumentation Set (Includes all instrumentation listed) 00-1155-094-00 Herbert Cannulated 4.5mm Bone Screw instrumentation used for the 4.5mm bone screw (Denoted with a • ) Herbert Cannulated Bone Screw Implant Set (Includes two each of every size bone screw) Prod. No. 00-1155-001-00 4.5mm Implants 47-1155-025-05 47-1155-030-05 47-1155-035-05 47-1155-040-05 47-1155-045-05 47-1155-050-05 47-1155-055-05 47-1155-060-05 47-1155-065-05 47-1155-070-05 47-1155-075-05 47-1155-080-05 47-1155-085-05 47-1155-090-05 47-1155-095-05 47-1155-100-05 25mm 30mm 35mm 40mm 45mm 50mm 55mm 60mm 65mm 70mm 75mm 80mm 85mm 90mm 95mm 100mm 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 00-1155-099-00 6.5mm Implants 47-1155-025-07 47-1155-030-07 47-1155-035-07 47-1155-040-07 47-1155-045-07 47-1155-050-07 47-1155-055-07 47-1155-060-07 47-1155-065-07 47-1155-070-07 47-1155-075-07 47-1155-080-07 47-1155-085-07 47-1155-090-07 47-1155-095-07 47-1155-100-07 Length Leading Thread Length Trailing Thread Length Pitch Flush Flush 1 Turn Difference Reduction Reduction Potential Potential 25mm 30mm 35mm 40mm 45mm 50mm 55mm 60mm 65mm 70mm 75mm 80mm 85mm 90mm 95mm 100mm 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 25-35mm 9.0mm 5.8mm .41mm 1.23mm 1.64mm 40-70mm 11.9mm 6.4mm .41mm 1.42mm 1.85mm 75-100mm 16.0mm 6.4mm .41mm 1.42mm 1.85mm Instrumentation • 00-1155-011-00 • 00-1155-012-00 • 00-1155-013-00 • 00-1155-014-00 • 00-1155-015-00 • 00-1155-016-00 00-1155-021-00 00-1155-022-00 00-1155-023-00 00-1155-024-00 00-1155-026-00 00-1155-027-00 • 00-1180-040-00 • 00-4808-020-00 • 00-1155-085-00 Cannulated Tap, 4.5mm Cannulated Screwdriver, 4.5mm Trephine, 4.5mm Pilot Drill Bit, 3.8mm Main Drill Bit, 3.1mm Guide Pin, Partially Threaded, 1.6mm Cannulated Tap, 6.5mm Cannulated Screwdriver, 6.5mm Trephine Pilot Drill Bit, 5.5mm Guide Pin, Partially Threaded, 2.0mm Main Drill Bit, 4.6mm Depth Guide Parallel Drill Guide, 2.0mm Sterilization Tray 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Herbert Cannulated Bone Screws 4.5mm Diameter Leading Thread Major Diameter 4.5mm Trailing Thread Major Diameter 5.8mm Length Leading Trailing Thread Thread Length Length Pitch Flush Flush 1 Turn Difference Reduction Reduction Potential† Potential†† 25-35mm 8.2mm 5.8mm .41mm 1.23mm 1.64mm 40-70mm 12.0mm 6.4mm .41mm 1.42mm 1.85mm 75-100mm 16.0mm 6.4mm .41mm 1.42mm 1.85mm 6.5mm Diameter Leading Thread Major Diameter 6.5mm Trailing Thread Major Diameter 8.1mm † Amount of fracture reduction potential with screw tightened flush with bone surface †† Amount of fracture reduction potential with screw tightened 1mm below bone surface Warning: This device is not approved by the U.S. FDA for screw attachment or fixation to the posterior elements (pedicles) of clavical, thoracic, or lumbar spine. DISCLAIMER: 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 advise 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 97-1155-401-00 Rev. 3 7-27-15 ©2015 Zimmer, Inc.
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