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 High Ankle Sprain Syndesmosis 2026 | DPM 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.
Medically Reviewed | Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle, Michigan
A high ankle sprain, also known as a syndesmotic injury, is a serious ankle injury that involves damage to the ligaments connecting the tibia (shinbone) and fibula (smaller leg bone) above the ankle joint itself. Unlike the common inversion ankle sprain that affects the lateral ligaments, a high ankle sprain involves the syndesmosis—a group of ligaments and the interosseous membrane that hold the two leg bones in proper alignment. These injuries are less common than typical ankle sprains but are more serious, requiring careful diagnosis and appropriate treatment to prevent long-term instability and chronic ankle problems.
High ankle sprains typically occur from external rotation injuries (foot rotates outward while the leg stays fixed), forced dorsiflexion with rotation, or direct impact to the outer leg. Athletes in sports requiring cutting and direction changes—such as football, soccer, and basketball—are at higher risk. The injury causes pain higher on the ankle than a typical sprain, often above the ankle joint in the lower leg. Swelling may be more significant and develop more slowly than with lower ankle sprains. Pain with weight-bearing, especially during walking or activity, is common. Dr. Tom Biernacki evaluates high ankle sprains carefully because misdiagnosis or undertreatment can lead to chronic instability and future injuries.
Diagnosis of syndesmotic injuries requires careful clinical examination and imaging. X-rays help identify fractures and assess syndesmotic widening, while MRI or CT may be needed to fully evaluate soft tissue damage. The squeeze test (compression of the leg), external rotation test, and assessment of pain with weight-bearing help confirm syndesmotic involvement. Treatment depends on injury severity: incomplete ligament tears typically heal with immobilization in a boot or cast for 4-8 weeks, elevation, ice, and gradual return to activity with physical therapy. More severe injuries with significant ligament damage may require surgical repair or reconstruction to restore anatomic stability.
Recovery from a high ankle sprain is typically longer than from a typical ankle sprain—often 6-12 weeks or more before return to sport. Physical therapy is crucial and should focus on restoring proprioception, ankle stability, and lower leg strength. Many athletes try to return too quickly and re-injure the syndesmosis, leading to chronic ankle instability. When surgery is necessary, outcomes are generally excellent with appropriate rehabilitation. Dr. Biernacki emphasizes that the goal is not just healing the injury but restoring complete stability to prevent recurrent injuries and chronic problems that could affect your long-term athletic performance.
The most important clinical decision with High Ankle Sprain Syndesmosis isn’t which treatment to start with — it’s identifying the correct subtype. That changes everything. Call (810) 206-1402.
Dr. Tom's Product Recommendations
Mueller Sports Medicine Ankle Brace
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Medical-grade ankle stabilizer brace providing compression and support during high ankle sprain recovery and rehabilitation
Dr. Tom says: “After my high ankle sprain, this brace gave me the confidence to gradually return to activity without re-injury”
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Acute phase requiring complete immobilization or post-surgical cases
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Aircast AirLift Ankle Support Boot
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Pneumatic ankle boot providing controlled ankle support and compression for syndesmotic injury recovery
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Post-diagnostic high ankle sprain requiring controlled immobilization and compression
Chronic ankle instability requiring custom fitting or surgical intervention
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✅ Pros / Benefits
- Most high ankle sprains heal successfully with proper conservative treatment
- Advanced imaging accurately identifies syndesmotic damage severity
- Physical therapy effectively restores ankle stability and proprioception
- Surgical repair outcomes are excellent when surgery is indicated
❌ Cons / Risks
- Recovery time is significantly longer than typical ankle sprains (6-12+ weeks)
- Inappropriate treatment or early return to activity risks chronic instability
Dr. Tom Biernacki’s Recommendation
High ankle sprains often get misdiagnosed as routine ankle sprains, which is a critical mistake. The syndesmosis requires different treatment and healing times. Proper diagnosis, appropriate immobilization, and then aggressive rehabilitation are essential. I see too many athletes try to return too quickly and develop chronic ankle problems—that’s preventable with proper care.
— Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle
Frequently Asked Questions
How is a high ankle sprain different from a regular ankle sprain?
A regular ankle sprain involves the lateral ligaments on the outside of the ankle joint. A high ankle sprain involves the syndesmosis—the ligaments above the ankle joint connecting the two leg bones. High ankle sprains are more serious, take longer to heal (6-12+ weeks vs 2-4 weeks), and require different treatment to prevent chronic instability.
Can a high ankle sprain heal without surgery?
Yes, many high ankle sprains heal successfully without surgery when properly treated with immobilization, elevation, ice, and physical therapy. However, severe injuries with complete ligament tears may require surgical repair to restore proper syndesmotic alignment and prevent chronic instability. Dr. Biernacki assesses injury severity to guide this decision.
Why do high ankle sprains take so long to heal?
The syndesmosis ligaments require a long healing time because they have less blood supply than some other ligaments, and the mechanical demands of properly aligned leg bones require substantial healing before weight-bearing and activity stress can be tolerated. Rushing recovery before healing is complete risks re-injury.
How do I prevent re-injury after a high ankle sprain?
Complete physical therapy focusing on proprioception, balance, ankle stability, and lower leg strength is essential. Wearing an ankle brace during return to activity provides additional stability. Avoid returning to sport before full healing is complete. Work with Dr. Biernacki to establish a safe, gradual return-to-activity program.
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When should I see a podiatrist?
If symptoms persist past 2 weeks, affect your normal activity, or are accompanied by red-flag symptoms (warmth, redness, swelling, inability to bear weight).
What does treatment cost?
Most diagnostic visits and conservative treatments are covered by Medicare and major insurers. Out-of-pocket costs vary by your specific plan.
How quickly can I get an appointment?
Most non-urgent cases see us within 5 business days. Urgent cases (sudden pain, possible fracture) typically same or next business day.
In-Office Treatment at Balance Foot & Ankle
If home treatment isn’t providing relief for your high ankle sprain syndesmosis, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.
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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.