Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026
The most important clinical decision with Extensor Hallucis Longus Injury: Tendon Tears, Lacerations, and Recovery isn’t which treatment to choose — it’s identifying which subtype you have first. Our podiatrists see patients treated for the wrong subtype for months before the correct diagnosis leads to full resolution. Call (810) 206-1402 — expert podiatric care across Michigan.
The extensor hallucis longus (EHL) tendon runs along the dorsum of the foot and extends the great toe. EHL injuries include lacerations (most common — from sharp objects on the dorsal foot), closed ruptures (from blunt trauma or degenerative tendinopathy), and tendinopathy from tight shoe tongues or repetitive irritation. Because EHL function is important for gait clearance and great toe position, significant injuries warrant surgical repair.
EHL Injury Types and Management
| Injury Type | Mechanism | Presentation | Treatment |
|---|---|---|---|
| Laceration (dorsal foot) | Sharp object; glass; knife wound; lawn mower | Wound over dorsum; inability to extend great toe; may be partial | Surgical repair within 1-2 weeks (before retraction); primary end-to-end repair |
| Closed rupture | Forced plantarflexion against resistance; blunt trauma | Sudden pop; immediate toe drop; dorsal gap on palpation | Surgical repair preferred for active patients; conservative for elderly/low demand |
| Partial tear / tendinopathy | Tight shoe tongue; repetitive irritation; overuse | Dorsal foot pain at tendon; pain with resisted great toe extension | Shoe modification; padding; physical therapy; rarely surgical debridement |
| EHL avulsion (distal phalanx) | Forced plantarflexion of great toe tip | Unable to extend great toe at IP joint; insertion tenderness | Conservative (hyperextension splint 4-6 weeks); surgical for large avulsion fragment |
Recovery After EHL Repair
| Phase | Duration | Activity |
|---|---|---|
| Post-repair immobilization | 0-3 weeks; splint in slight plantarflexion | NWB; protect repair from stretch |
| Progressive motion | Weeks 3-6; boot | Gentle passive extension ROM; progressive WB |
| Active motion / strengthening | Weeks 6-10 | Active great toe extension exercises; resistance band; PT |
| Return to full activity | 3-4 months | Full athletic activity; ensure full extension strength |
EHL lacerations on the dorsal foot often occur with concurrent nerve and vessel injury — thorough wound exploration is essential. At Balance Foot & Ankle in Howell and Bloomfield Hills, we evaluate and repair EHL injuries and manage EHL tendinopathy conservatively. Call (810) 206-1402.
PubMed: Extensor Hallucis Longus Tendon Injuries
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Doctor Answer
What is an extensor hallucis longus injury and how is it treated?
The extensor hallucis longus (EHL) tendon lifts the big toe, and injuries range from tendinitis to complete rupture. Partial injuries and tendinitis respond to rest, NSAIDs, physical therapy, and a removable boot. Complete EHL ruptures cause inability to lift the great toe and require surgical repair or tendon transfer if not repaired early. I see EHL injuries from deep lacerations on the top of the foot, shoe edge irritation, and overuse in runners.
Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.