Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Township, MI
Last reviewed: May 2026
Syndesmosis injuries are the most commonly undertreated ankle injuries because standard X-rays miss the instability in up to 50% of cases — and inadequate fixation of the syndesmosis is the leading cause of chronic ankle pain after ankle fracture surgery. Call (810) 206-1402 — expert podiatric care across Michigan.
Syndesmosis repair surgery stabilizes the distal tibiofibular joint when ligament disruption allows pathological widening of the ankle mortise. This occurs in high ankle sprains, rotational ankle fractures, and syndesmotic instability injuries. Untreated syndesmotic widening causes ankle instability, chronic pain, and accelerated talar cartilage wear. Surgical fixation restores the normal tight-fit relationship between the tibia and fibula around the talus.
Syndesmosis Fixation Methods Compared
| Method | Mechanism | Advantages | Disadvantages |
|---|---|---|---|
| Transsyndesmotic screw (4.5 mm cortical) | Rigid screw across fibula, syndesmosis, and tibia; holds fibula in reduced position | Proven technique; strong fixation; low cost | Requires removal at 8-12 weeks or restricts normal fibular motion; screw breakage risk |
| Suture-button (TightRope, InternalBrace) | Flexible fixation with cortical buttons and high-strength suture; allows physiologic fibular motion | No routine removal needed; fibula can rotate normally; earlier weight-bearing possible | Higher cost; technically demanding; button migration rarely reported |
| Hybrid fixation | Screw for acute reduction + suture-button for long-term dynamic stability | Used in complex or high-energy injuries; combines rigid acute fixation with dynamic long-term stability | More hardware; higher cost |
Recovery Timeline After Syndesmosis Repair
| Phase | Timing | Activity | Key Milestone |
|---|---|---|---|
| Immobilization | 0-6 weeks | NWB or protected WB in cast/boot; screw intact; ROM exercises begin at 2 weeks | Syndesmotic ligaments healing |
| Screw removal (if applicable) | 8-12 weeks post-op | Brief outpatient procedure; hardware out before full weight-bearing sports | Allows fibular motion to resume |
| Progressive loading | 6-12 weeks | CAM boot to normal shoe; PT for proprioception and peroneal strengthening | Full weight-bearing by 10-12 weeks |
| Return to sport | 4-6 months | Sport-specific drills; cutting and pivoting cleared at functional tests | Single-leg hop symmetry, balance testing |
At Balance Foot & Ankle in Howell and Bloomfield Township, syndesmotic instability is confirmed with stress X-rays and MRI before surgical planning. Suture-button fixation is our preferred technique for isolated syndesmotic injuries. Call (810) 206-1402.
American Academy of Orthopaedic Surgeons: High Ankle Sprain (Syndesmosis)
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Doctor Answer
What is syndesmosis repair surgery and what is recovery like?
Syndesmosis repair stabilizes the joint between the tibia and fibula above the ankle when the ligaments connecting them are torn — a high ankle sprain injury. Surgery places a tightrope device or screws to hold the bones in proper alignment while the ligaments heal. Recovery involves 6-8 weeks non-weight-bearing, then a walking boot, with return to sport typically at 4-6 months after hardware removal or absorption.
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.