07 15 Syndesmotic Injuries Syllabus

2015-07-07

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7/3/2015

Daniël Haverkamp
Syndesmotic Instability
Physical Exam & Imaging

Disclosure
Research Support from:
Implantcast
Mathys Medical
Imove Medical
Cotera
Carbylan

Consultancy agreement
IMove Medical
Cotera

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Consensus Meeting Rome 2013

Consensusmeeting Budapest 2015

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Acute
High index of suspicion

Rome, consensus meeting 2013

Acute
High index of suspicion
The tenderness length measurement

Rome, consensus meeting 2013

Acute
High index of suspicion
The tenderness length measurement
Deltoid ligament

Rome, consensus meeting 2013

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Acute
High index of suspicion
The tenderness length measurement
Deltoid ligament
Stable/Unstable

Rome, consensus meeting 2013

Cotton Test

Squeeze test

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Fibula Translation test

External Rotation test

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Stress X-ray

Polzer 2012, Orthopedic Reviews

MRI

Howard, Sports Health 2012

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Ultrasound

Arthroscopy

Imaging
Comparative Weightbearing X-rays should be
made
Stress views might be an option
MRI is the most appropriate addiotonial tool
Dynamic Sonography might play a role in
selected centers
Diagnostic arthroscopy can be performed in
cases with a high clinical suspicion with a nonconclusive MRI (Chronic instability).
Consensusmeeting Budapest 2015

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7/2/2015

Principles of conservative
management of syndesmosis injuries
James Calder TD, MD, FRCS(Tr & Orth) FFSEM(UK)
Chelsea & Westminster Hospital, London
The Fortius Clinic, London
www.fortiusclinic.com

Key to success
 Accurate assessment
of degree of
instability / grading

 Early stabilisation /
immobilisation
 Assessment during
rehabilitation

Longer recovery than ATFL/CFL injuries
Nussbaum, AJSM 2001
Wright, AJSM 2004
Jones, CORR 2007

What are the aims / pitfalls?
 Subtle instability antero-lateral
synovitis /
impingement
 Chronic instability
 Medial deltoid
instability / pain

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Which injuries are suitable for
conservative management?
 Isolated syndesmosis

injury:
 AITFL +/- IOL
 ?PITFL
 ATFL/CFL injury protective?

Which injuries are suitable for
conservative management?
 Isolated syndesmosis

injury:
 AITFL +/- IOL
 ?PITFL
 ATFL/CFL injury protective?

 Concomitant ATFL/CFL

injury indicates:
 SER with syndesmosis

extension
 Milder injury
Calder & Roche, FA meeting St George’s 2014

Which injuries are suitable for
conservative management?
 Isolated syndesmosis

injury:
 AITFL +/- IOL
 ?PITFL
 ATFL/CFL injury protective?

 Concomitant ATFL/CFL

injury indicates:

 Consider fixation /

intervention:
 Medial deltoid injury
 Fibula fracture
 Posterior malleolar fracture

 SER with syndesmosis

extension
 Milder injury
Calder & Roche, FA meeting St George’s 2014

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What does this translate into clinically?
West Point Classification syndesmosis no fracture
Gerber Foot Ankle 1998

 Grade I – mild AITFL sprain
 Conservative Mx

 Grade III – definite

instability with complete
disruption of all ligaments
 Operative Mx

What does this translate into clinically?
West Point Classification syndesmosis no fracture
Gerber Foot Ankle 1998

 Grade I – mild AITFL sprain
 Conservative Mx

 Grade III – definite

instability with complete
disruption of all ligaments
 Operative Mx

 Grade II – vague “slight

instability” with tear of
AITFL and partial tear IOL

What does this translate into clinically?
West Point Classification syndesmosis no fracture

Arthroscopy Grade II?
Wolf & Amendola, Cur Op Orthop 2002

Gerber Foot Ankle 1998

 Grade I – mild AITFL sprain
 Conservative Mx

 Grade III – definite

instability with complete
disruption of all ligaments
 Operative Mx

 Grade II – vague “slight

instability” with tear of
AITFL and partial tear IOL

 Grade II a – stable
 Conservative Mx

 Grade IIb – “latent”
instability
 Operative Mx
Mcollum, KSSTA 2013

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Conservative Management
- Grade I and IIa injuries
Nussbaum, AJSM 2001

 Phase I - 1-4 days

 60 pts “aggressive”
rehabilitation

 Phase II – PWB with ankle

immobilisation NWB

brace (proprioception, ROM,
resistance/functional training)
 Phase III – when 10 single leg

Level 4

toe-hops
 RTS – with tape & brace after

functional testing

Conservative Management
- Grade I and IIa injuries
Nussbaum, AJSM 2001

Results
 Mean RTS 13.4 days (5-24)

 60 pts “aggressive”
rehabilitation

 Length of tenderness = longer RTS
 At 6/12:
 6/53 – pain/stiffness

 3/53 – recurrent sprains
 1/53 – heterotropic ossification

Level 4

 35/53 – excellent; 18/53 – good

 No MRI
 ?ATFL sprain not syndesmosis

Conservative Management
- Grade I and IIa injuries
Hopkinson, FAI 1990
 1334 military pts
 Partial syndesmosis longer recovery vs ankle sprain

(55 vs. 28 days)
 Significant +ve squeeze test @ 20 months
 9/10 heterotopic ossification

 Problems:
 Retrospective; No MRI ?diagnosis; few late f/u

Level 4

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Conservative Management Principles
- Grade I and IIa injuries
Few level 4 studies on conservative Mx
No level 2 or 3 studies
Specific conservative management:
Grade I recommendation

Conservative Management Principles
- Grade I and IIa injuries
Few level 4 studies on conservative Mx
No level 2 or 3 studies
Specific conservative management:
Grade I recommendation

What follows is a summary but
Level 5!!

Conservative Management Principles
- Grade I and IIa injuries
Phase I
 Week 1:
 RICE
 NWB boot
 Avoid NSAIDs

 Week 2:
 PWB as tolerate boot
 Physio supervised ROM &
proprioception

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Conservative Management Principles
- Grade I and IIa injuries
Phase 2
 Week 3
 FWB boot / if no pain - tape
 Strength & proprioception
 Plyometric exercises (leg press, aeromat, toe standing, single leg hop)

 Clinical marker:
Improved pain with forward lunge

Conservative Management Principles
- Grade I and IIa injuries
Phase 2
 Week 4+
 Support brace / tape
 Light running:
 30 sec single leg toe hop
 Improved knee-to-wall
 ?Progress to multidirectional training

Conservative Management Principles
- Grade I and IIa injuries
Phase 2
 Week 4+
 Support brace / tape
 Light running:
 30 sec single leg toe hop
 Improved knee-to-wall
 ?Progress to multidirectional training

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Conservative Management Principles
- Grade I and IIa injuries
Phase 2
 Week 4+
 Support brace / tape
 Light running:
 30 sec single leg toe hop
 Improved knee-to-wall
 ?Progress to multidirectional training

Conservative Management Principles
- Grade I and IIa injuries
Phase 2
 Week 4+
 Support brace / tape
 Light running:
 30 sec single leg toe hop
 Improved knee-to-wall
 ?Progress to multidirectional training

Conservative Management Principles
- Grade I and IIa injuries
Phase 2
 Week 4+
 Support brace / tape
 Light running:
 30 sec single leg toe hop
 Improved knee-to-wall
 ?Progress to multidirectional training

Clinical markers:
Forward lunge test
Pain-free single leg toe hop 30 secs
Pain-free ext rotation on exam couch

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Conservative Management Principles
- Grade I and IIa injuries
Phase 3
 Continue taping 12

weeks
 Return to training

Running – Alter-G
treadmill
 Multi-directional

training

Conservative Management Principles
- Grade I and IIa injuries
Phase 3
 Continue taping 12

weeks
 Return to training

Running – Alter-G
treadmill
 Multi-directional

training

Summary
Accurate assessment of
grade
 ATFL injury “good sign”
 Beware higher grade injury:
 Medial deltoid & PITFL injury
 +ve squeeze test
 “high ankle pain”

 Consider arthroscopy to

differentiate Grade IIa/b

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Summary
Accurate assessment of
grade

 Early “aggressive”
immobilisation (not
rehabilitation)

 ATFL injury “good sign”
 Beware higher grade injury:
 Medial deltoid & PITFL injury
 +ve squeeze test
 “high ankle pain”

 Consider arthroscopy to

differentiate Grade IIa/b

 Progress depends on
clinical assessment
 Maintain taping
 Warn of RTS 6-10
weeks

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7/6/2015

University Campus Bio-Medico of Rome
Department of Trauma and Orthopaedic Surgery
Head Prof Vincenzo Denaro

Acute Syndesmotic Injury in the Athlete:
Indications & Approach for Operative Treatment

Presenter: Umile Giuseppe Longo MD, MSc, PhD

Conflicts of interest

No conflicts to declare

“Acute” injury: Definition
M.Vd Bekerom, CN van Dijk - 2009

Espinoza 2012
• Acute < 3 weeks
• Subacute > 3 weeks
• Chronic> 3 months

• Acute
• Subacute > 6 w
• Chronic > 6 m

Valkering 2012 - Scraton - 2000
• Acute < 6 weeks
• Subacute > 6 weeks
• Chronic > 3 months

Porter - 2009
• Acute < 4 weeks
• Subacute > 4 weeks
• Chronic > 3 months

Magan A, Golano P, Maffulli N, Khanduja V. Br Med Bull. 2014;111(1):101-15.

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Treatment of syndesmotic
- Flow Chart
“Acute”instability
injury: Definition
Acute < 6w

Syndesmotic

Subacute > 6w

Syndesmotic screw fixation

Inadeguate remnants of ligaments

Ligamentoplay + screw
placement

Adequate remnants of ligaments

Suturing + screw
placement

Slack but continuos ligament

Traslation + screw
placement

Ligament Repair

Chronic > 6m

Synostosis/fusion + screw
placemnt

Classifications
Porter Classification
I. injury is characterized by lesion of the AITFL,
IOL and anterior deltoid ligament
II. injury is characterized by lesion of a
significant portion of the syndesmosis, and
disruption of the anterior and deep deltoid
ligaments. Occult instability.
III. injury consists of extensive disruption of the
syndesmosis and complete disruption of the
deltoid ligament

Sikka Classification
I. lesion is an isolated injury of the AITFL
II. injury of the AITFL, IOL and
interossesous membrane.

Edwards and DeLee
classification
I. lesion of the AITFL without involvement
of the deltoid ligament.
II. rupture of the AITF and deltoid ligaments
leading to occult instability
III. fibular bowing (plastic deformation of
fibula) and widening of tibiofibular space
visible on standard plain radiographs.

West Point Ankle Grading
System
I. injury consists of a mild sprain or tear of
the AITFL with no instability of the ankle.

III. injury of the AITFL, IOL, interossesous
membrane and PITFL.
IV. disruption of all the previous ligaments
associated with the rupture of the deltoid
ligament.

II. lesion of the AITFL and partial tear of
the IOL with slight instability of the joint.
Latent instability.
III. complete disruption of all the ligaments
with frank instability of the ankle

Magan A, Golano P, Maffulli N, Khanduja V. Br Med Bull. 2014;111(1):101-15.

Stable ankle
Conservative
Unstable ankle
Surgery

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Indications
Stable ankle:
• Syndesmotic ruptures without injury of the deltoid ligament

Conservative Management

Unstable ankle

• Frank diastasis or
• Latent instability with proved deltoid ligament rupture

Surgical Management

Indications

Sprains without instability:
nonoperative
• Short leg cast or brace
• Rehab program as pain allows
• Double the time to recover
compared to a typical lateral
ankle sprain

Indications

Frank diastasis: operative
• Repair of the ligament?
• If reduction blocked by deltoid
ligament:
exploration and repair
Removal of interposed soft tissue
• Syndesmosis screw
• NWB short leg cast

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Approach for Operative Treatment

Available surgical techniques:
– Traditional metal screw fixation
– Bioabsorbable screws
– Suture-Button
– Fixation with a staple
– Cerclage wires
– Kirschner wires

Approach for Operative Treatment

Syndesmotic screw
– Aims to temporarily stabilize the reconstructed
mortise
– Potential complications
• Synostosis or ossification of the distal tibiofibular joint
• Impairment of full ankle dorsiflexion, limit tibiotalar range of
movement in terms of rotation (Data from Experimental cadaveric
studies)

Approach for Operative Treatment

Suture-button (TightRope®)
– Similar outcome compared with the
syndesmotic screw or bolt fixation
– Might lead to a quicker return to work
– Rate of implant removal is lower compared
to the syndesmotic screw
– Insufficient evidence on the long-term
effects of the TightRope®

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Approach for Operative Treatment

Diameter of the screw
• No consensus on the optimal screw size for
syndesmotic fixation (3.5 mm or 4.5 mm cortical
screw)
• Experimental data: screw of larger diameter provide
greater resistance to an applied load

Approach for Operative Treatment

Number of cortices
– No consensus (three or four cortices)
– Four-cortical fixation: more rigidity and
stability of the ankle, but higher risk of
screw breakage
– Three-cortical fixation: better syndesmosis
biomechanics (possibility of hardware
failure is diminished while the risk of
loosen the screw is increased than fourcortical fixation)

Approach for Operative Treatment

Absorbable screw
– To prevent the removal of the screw and
the risks associated with this procedure
– Inferior biomechanical properties
compared with those of conventional
metallic implants.
– Good clinical outcomes
– No differences compared to metallic
screws

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Approach for Operative Treatment

Position of the ankle during fixation
– Debated issue.
– Recommended to fix an injured
syndesmosis with the foot in dorsiflexion
to prevent a limited dorsiflexion of the
ankle.
– Recent studies show that the position of
the ankle during syndesmotic fixation is
probably irrelevant

Approach for Operative Treatment

Positioning of the screw
• Screw should be positioned parallel to the joint line and
angled about 30° anteriorly (anatomically the fibula is
posterior and lateral to the tibia)
• Optimal position of the screw with respect to the tibial
plafond is still debated
– Sproule et al.: the screw 4 cm proximal to the ankle joint
– McBryde et al. less syndesmotic widening when using the
screw at 2 cm than at 3.5 cm.

• Screw positioned too far proximally, it can deform the
fibula and the mortise is more likely to widen.

Approach for Operative Treatment

Retain or remove a syndesmotic screw prior to
weight-bearing
– Still debated
– At 6–8 weeks to prevent the possibility of
breakage of the screw?
– Leaving the screw in place may save patients
from one extra surgical procedure
– Outcome appears to be similar or better
when the screw is retained
– Van den Bekerom et al.: removal of fourcortical screws after 6–8 weeks, and removal
on indication in three-cortical screws.

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7/6/2015

Approach for Operative Treatment
–
–
–
–
–
–
–
–
–
–
–

Syndesmotic injuries require an early recognition
Late repairs are less favourable
3.5 or 4.5 screw? Proposal: 3.5 mm
3 cortices or 4 cortices? Proposal: 4 cortices in heavy
patient, 3 in patients with low BMI
Screw or suture-button? Proposal: both
Absorbable non absorbable? Proposal: non absorbable
Position for fixation Proposal: neutral to slightly dorsiflexion
position
Lag or positioning screw? Proposal: Both possible (prob
positioning more safe)
Removal of soft tissue Proposal: between 3-6 weeks
Removal of screw Proposal: at 8 weeks
Partial weightbearing: Proposal: 6-8 weeks

Umile Giuseppe Longo - Email: ug.longo@gmail.com
University Campus Bio-Medico of Rome
Department of Trauma and Orthopaedic Surgery

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7/5/2015

Operative Techniques for chronic syndesmotic
injury

Pieter D'Hooghe
Aspetar Orthopaedic Surgery Dept, Doha, Qatar

•
•
•
•

Orthopaedic Sportssurgeon
ISAKOS Chair "Leg, Ankle & Foot Committee
ESSKA AFAS Member
No disclosures

Courtesy Pau Golano - Niek van Dijk
anterior and posterior inferior tibiofibular ligaments (AITFL
and PITFL) as well as the interosseous tibiofibular ligament
(IOL). The transverse tibiofibular ligament (TTFL) is
considered a continuation or deep portion of the posterior
PITFL

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7/5/2015

Mechanism of injury
Courtesy James Calder

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Late syndesmotic widening
History:
•

Persistent pain after fracture/sprain

•

Giving way

•

Difficulty with walking on uneven ground

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

Late syndesmotic widening
Physical examination
1. Swelling pressure pain over syndesmosis

2. Stiffness/ limited dorsiflexion upper ankle joint
3. Cotton test, fibular translation test
4. External rotation test is not reliable ( false negatives )

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

Late syndesmotic widening
Radiology:
•
•
•

Arthrogaphy (Olsen 1981) (Katznelson 1983)
MRI (Han 2007) (Kim 2007)
Arthroscopy (Lui 2005) (Sri-Ram 2005)

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw PAJ, van Dijk CN
Injury 2009

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7/5/2015

IMAGING

• Comparative weightbearing X-rays should be made
• MRI is the most appropriate additionial tool
• CT (comparitive) might be usefull in assessing
rotational deformities
• Dynamic sonography might play a role in selected
centers
• Diagnostic arthroscopy can be performed in cases
with a high clinical suspicion with a non-conclusive
MRI.

Arthroscopic syndesmotic instability assessment

Hook test

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw PAJ, van Dijk CN
Injury 2009

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7/5/2015

TREATMENT

• Untreated have poor prognosis
• No distinction between subacute and chronic
• Syndesmotic enhancement with lag screw or
positioning screw (3 or 4 cortices) or suture
button technique or combination
• Arthroscopic debridement with lag screw or
positioning screw (3 or 4 cortices) or suture
button technique or combination

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7/5/2015

Late syndesmotic widening
•

Treatment options for late syndesmotic widening

•
•
•
•
•
•
•

Syndesmotic screw fixation
Debridement (with screw fixation)
Repair (with screw fixation)
Reconstruction (with screw fixation)
Bone block transfer (with screw fixation)
Correction osteotomy
Arthrodesis

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw PAJ, van Dijk CN
Injury 2009

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Late syndesmotic widening
Syndesmotic screw stabilisation

•

Late syndesmotic screw fixation was advocated by Key (1934)
and Mullins (1958)

•

Opinion: only screw fixation for chronic instability is not
sufficient

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

Late syndesmotic widening

Arthroscopic debridement and screw stabilisation
• Harper MC, FAI, 2001
– 6 patients, 4 males, 2 females, mean age 41
– PER stage IV
– 15 months post-trauma
– 23 months follow-up
– 5/6 patients are satisfied
• Opinion: only debridement to aim for a fibrotic union (with
screw fixation) is not sufficient
Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw PAJ, van Dijk CN
Injury 2009

Late syndesmotic widening
Repair ( + arthroscopic debridement and screw stabilisation)
• Mosier-LaClair, Foot Ankle Clin, 2000
– 8 patients
– 5 Weber C #, 3 ankle sprains
– 48 months post-trauma
– 24 months follow-up
– 8/9 satisfied. 1/9 dissatisfied
• Opinion: only possible when there are adequate remnants of
the syndesmotic ligament.
Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

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Late syndesmotic widening
Reconstruction (+ arthroscopic debridement and screw stabilisation)
•

Grass, FAI, 2003
– Reconstruction with peroneus longus
– 16 patients, 2 males, 14 females, mean age 40
– 14 PER, 2 PA
– 14 months post-trauma
– 16 months follow-up
– 16 are relieved of chronic instability, 15 are relieved of pain
Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

Late syndesmotic widening
Reconstruction (arthroscopic debridement and screw stabilisation)
• Other options
– Extensor Dig V (Kelikian)
– Plantaris tendon (van Dijk, Kelikian)
– Fascia (Kelikian)
– Dura mater (Kelikian)
• Opinion: Reconstruction with plantaris tendon or gracilis tendon
is a good option when there are no adequate remnants and
there is no slack intact ligament

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

Late syndesmotic widening
Bone block transfer (screw stabilisation)
•
Beumer, Acta Orthop Scand, 2000
–
Bone block transfer with syndesmotic screw fixation, 9 patients.
–
45 months post-trauma
–
9/9 are relieved of chronic instability, 2 developed dystrophy, 1 nerve
entrapment
•
Van Dijk, Tech Foot Ankle Surg, 2006
–
Bone block transfer with syndesmotic screw fixation, 6 patients.
–
No patient was symptom free, 2 patients had a later synostosis

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7/5/2015

Late syndesmotic widening
Bone block transfer ( + screw stabilisation)
•
•
•

Opinion: a good technique when there is a slack but intact
ligament
Beumer (2000) stated that even in late cases, the ligament was
slack but always present
Bahr (1997) stated that anatomic repair with the original
(TibioFibular) ligament should be better

Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

Late syndesmotic widening
Correction osteotomy ( + arthroscopic debridement)
•

Opinion: when there is a syndesmotic widening and a malunion,
an osteotomy is regarded the first treatment step.

•

All components of the malunion should be corrected

•

When there is a severly disturbed ankle function, an arthrodesis
should be considered.
Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

Late syndesmotic widening

Tibiofibular fusion
• Katznelson et al, Injury, 1983
– 5 patients, 3 males, 2 females, mean age 20 yr.
– Ankle sprains
– 10 months post trauma
– 5/5 pain free, 4/5 free ROM
• Opinion: this technique can be used for syndesmotic instability
lasting > 6 months.
Delayed operative treatment of syndesmotic instability. Current concepts review.
Van den Bekerom M, de Leeuw P, van Dijk CN
Injury 2009

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7/5/2015

Chronic Syndesmotic injury
TAKE HOME MESSAGE
•
•
•
•

•
•

First consider the fibular malalignment
Repair of the ligament with/when adequate remnants
Otherwise a reconstruction ( ligamentoplasty )with gracilis
tendon is advised
When there is a slack but intact ligament: a bone block
translation osteotomy is advised
Debridement to aim for a fibrotic union
Tibiofibular joint fusion ( synostosis with graft )

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7/5/2015

Syndesmotic impingment
Arthroscopically resection of the distal fascicle of the AITFL should be
considered when there:
(1) is contact between the AITFL and the talus,
(2) is increased contact between the talus and the ligament and this
continued until maximum dorsiflexion with abrasion of the
articular cartilage,
(3) bending of the fascicle on the anterolateral edge of the talus with
dorsiflexion and dorsiflexion-inversion,
(4) is a distally inserting fascicle on the fibula, close to the origin of
the ATFL on the fibula. This finding may be missed if the
distraction is preserved throughout the procedure
The distal fascicle of the anterior inferior tibiofibular ligament as a cause of tibiotalar
impingement syndrome: a current concepts review. van den Bekerom MP, Raven EE. Knee Surg
Sports Traumatol Arthrosc 2007

Thank You

12



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