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LISFRANC INJURIES: FUSION

John Ketz,M.D.CSFS Tampa 2018

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ORIF FUSION

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Introduction

Uncommon Injuries

Highly Variable Injuries Trauma Sports

Associated with other injuries

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Introduction

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Introduction

• “ I always do ORIF, and then I take out my screws

• “ I always do ORIF, but I leave my screws in”

• “I always fuse”

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Impact of Injury

• It’s a Lisfranc until proven otherwise

• Diagnosis is missed or delayed in up to 20% of cases

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Impact of Injury

Diagnosis is missed or delayed in up to 20% of cases

Litigation

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• Weight Bearing

• Contralateral views

• Stress

• CT/MRI

Imaging of Lisfranc Injuries

NWB WB

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Operative Treatment

OptionsORIF

Primary Arthrodesis

Percutaneous pinning/screws

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Results of ORIF Outcomes Fair Rapid progression of arthrosis Need for further procedures

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Results of ORIF Good to Fair Results

Most Important Parameter was Anatomic Reduction

Arntz et al. JBJS 1988

Kuo et al. JBJS 2000

Rajapakse et al. Injury 2006Teng et al. FAI 2002

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Rationale for Fusion

Kuo et al JBJS am 2000 Worse outcomes in primarily ligamentous injuries

Komenda et al JBJS am 1996 Significant improvement after midfoot arthrodesis for

PTOA

Sangeorzan et al FAI 1990 Improved results with early fusion for PTOA midfoot

Granberry Surg Gyn Obs 1962 Noted high incidence of PTOA post Lisfranc injury Recommended primary fusion

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Rationale for Fusion

Medial column of the midfoot functions rigidly during gait for stablility

Lateral column (4th, 5th mts-cuboid) is the mobile midfoot segment

One operation, one recovery period

Eliminates need for hardware removal

Fusion is more forgiving

Fusion is not time sensitive

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Osseous Stabilizing Structures

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Operative Technique

• Where to start?• Medial to lateral

• Lateral to medial

• Least to most comminuted

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Case – 50 yo M fall from roofSubstance abuse, Hepatitis C, Bipolar disorder, smoker

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Closed Reduction

Urgent if tenting the skin

Can be blocked by tendons, ligaments, bone

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Case

Operative Procedure?

1. ORIF

2. Primary Fusion

3. PT/Conservative care

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Operative Technique Incisions

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Case

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Case

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Case

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Operative Technique

Reduction/Temporary Fixation

Remove pins and debride one joint at a time

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DO NOT fuse in situ!

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Operative Technique Internal Fixation

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Operative Technique

Internal Fixation

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Case

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Case – 11 months

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Case – >4 yrs

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Hardware

What to use? Screws 3.5mm or 4.0mm cortical

Cannulated screws

Spanning Plates comminution

Suture Bridge?

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Hardware Screws

Fusion with Plates

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• Pin 4th and 5th if unstable, don’t fuse

Lateral Column

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Case – 17 yo M s/p twisting injury

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Case

CT at 2wks

WBAT

MRI at 8 wks

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Case – 9wks

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Case – 4 mo postop

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Post-Op

NWB Short leg cast X 6 weeks

Remove K wires at 4 weeks

Boot, gradual WB starting at 8-10 weeks

PT or HEP

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Primary Arthrodesis(PA) vs ORIF

Mulier et al FAI 2002 Advocated for partial primary arthrodesis for medial

column

Ly & Coetzee JBJS 2006

Randomized prospective study, improved results in PA vs ORIF for ligamentous injuries

Henning et al FAI 2009

Less secondary procedures and trends towards better outcomes in PA vs ORIF

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Complications Pain/neuritis

Wound Problems Should be less than ORIF

Post-Traumatic Arthritis? – NO!

Nonunion

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Fuse Everyone?

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My Experience

Low Energy

Young

Agility Athletes

ORIF PRIMARY FUSION

Chronic

High Energy

Older, Low Demand

BMI Champions

Work Comp

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Benefits of Primary Fusion

1. Avoids late arthrosis

2. Avoids need for removal of hardware

3. One surgery, one recovery period

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Summary

Complex Injuries with potential for poor outcomes

Do not miss subtle injuries

Listen to the soft tissues

Goal of fixation Stable plantigrade foot

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Thank You

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Case – 43 yo M s/p twisting injury

Happened 6 wks ago doing a tough mudder

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Case

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Case

Operative Procedure?

1. ORIF

2. Primary Fusion

3. PT/Conservative care

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Case – 5mo

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Case Deformity