High Ankle Sprain: Why It Takes Longer to Heal Than a Regular Sprain

Reviewed by Dr. Tom Biernacki, DPM, FACFAS

Board-certified foot & ankle surgeon · 3,000+ surgeries · @MichiganFootDoctors (950K+ subscribers)

Last reviewed May 11, 2026 · (810) 206-1402

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Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

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What Is a High Ankle Sprain? For specialized treatment, see our ankle instability treatment at Balance Foot & Ankle.

A high ankle sprain—also called a syndesmotic sprain—is an injury to the syndesmosis, the fibrous joint complex that holds the tibia and fibula together just above the ankle. The syndesmosis consists of four ligaments: the anterior inferior tibiofibular ligament (AITFL), the posterior inferior tibiofibular ligament (PITFL), the interosseous membrane, and the interosseous ligament. These structures maintain the precise spacing between the tibia and fibula that allows the ankle mortise to grip the talus during weight-bearing. When they are torn, the mortise widens, and the ankle joint becomes unstable in a mechanically different (and more consequential) way than a typical lateral ankle sprain involving only the ATFL or CFL.

High ankle sprains account for roughly 10–15% of all ankle sprains but are significantly more disabling and slower to heal than standard lateral sprains. They are common in contact sports (football, hockey, soccer, rugby) and skiing, typically occurring with external rotation of the foot or a direct blow that forces the tibia and fibula apart. Athletes who sustain high ankle sprains miss substantially more playing time than those with lateral sprains.

Symptoms and How to Tell It Apart from a Lateral Sprain

High ankle sprains cause pain above and in front of the ankle joint—at the AITFL location just proximal to the ankle mortise—rather than below and in front of the lateral malleolus where lateral sprains hurt. The squeeze test (compressing the fibula toward the tibia at mid-calf) reproduces pain at the syndesmosis in high ankle sprains; it does not in lateral sprains. The external rotation stress test (stabilizing the tibia and externally rotating the foot) also reproduces syndesmotic pain. Point tenderness along the anterior ankle just above the joint line, pain with weight-bearing that seems disproportionate to swelling, and pain when climbing stairs or pushing off with the foot are characteristic features. Swelling may be less dramatic than in lateral sprains, which often leads to underestimation of severity.

Imaging: standard ankle X-rays are essential to rule out fibula fracture and assess tibiofibular clear space (widening suggests significant syndesmotic disruption). Stress X-rays (external rotation stress view) can demonstrate instability not apparent on neutral films. MRI provides definitive evaluation of syndesmotic ligament integrity and is indicated when surgical decision-making is needed or clinical examination is equivocal.

Treatment: Conservative and Surgical

Stable high ankle sprains (no diastasis on stress X-rays, intact mortise) are managed conservatively: immobilization in a walking boot for 4–6 weeks, non-weight-bearing or protected weight-bearing during acute phase, followed by aggressive physical therapy focusing on proprioception, peroneal strengthening, and functional retraining. Return to sport is typically 6–10 weeks for stable injuries—significantly longer than the 2–4 weeks typical for grade I-II lateral sprains. Rushing return before the syndesmosis has healed leads to chronic instability and persistent pain.

Unstable high ankle sprains—with widening of the tibiofibular clear space on stress X-rays, or associated fibula fracture (Maisonneuve fracture is the classic high-energy variant)—require surgical stabilization. The syndesmosis is reduced and fixed with suture-button devices (TightRope) or screws. Suture-button fixation has largely replaced solid screws because it allows physiologic motion at the syndesmosis without requiring hardware removal. Recovery after surgical repair is 3–4 months before return to sport. Inadequately treated unstable high ankle sprains lead to syndesmotic malreduction, early ankle arthritis, and chronic pain.

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When to See a Podiatrist

A sprain that hasn’t fully recovered after 6 weeks often has residual ligament laxity or occult fracture that keeps the ankle unstable. Balance Foot & Ankle X-rays and stress-tests every lingering sprain — if the ligament is torn, we offer bracing, PRP, and (for chronic instability) minimally-invasive repair. Don’t keep re-rolling the same ankle; let us stabilize it properly.

Call Balance Foot & Ankle: (810) 206-1402  ·  Book online  ·  Offices in Howell & Bloomfield Hills

Frequently Asked Questions

Medical References & Sources

• PubMed Research — Syndesmotic Ankle Sprain Treatment Outcomes
• American Orthopaedic Foot & Ankle Society — Ankle Sprains
• PubMed Research — Suture-Button Fixation for Syndesmotic Injuries

Dr. Tom Biernacki, DPM is a board-certified podiatric surgeon at Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan. He evaluates and treats ankle sprains including syndesmotic injuries, with conservative management and surgical stabilization when indicated.

Your Board-Certified Podiatrists

Dr. Tom Biernacki, DPM

Board-Certified · FACFAS

Dr. Carl Jay, DPM

Board-Certified Podiatrist

Dr. Daria Gutkin, DPM

Podiatrist

In-Office Treatment at Balance Foot & Ankle

If home care isn’t resolving your ankle pain, a visit with a board-certified podiatrist is the fastest path to accurate diagnosis and a personalized plan. At Balance Foot & Ankle Specialists, Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin offer same-day and next-day appointments at both our Howell and Bloomfield Hills offices. We perform on-site diagnostic ultrasound, digital X-ray, conservative care, advanced regenerative treatments, and minimally invasive surgery when indicated.

Call (810) 206-1402 or request an appointment online. Most insurance plans accepted, including Medicare, Blue Cross Blue Shield, Aetna, Cigna, and United Healthcare.

Differential Diagnosis: What Else Could It Be?

Several conditions share symptoms with Ankle Sprain and are commonly misdiagnosed in the first office visit. Considering these alternatives is part of every Balance Foot & Ankle exam:

• Peroneal tendon tear. Snapping behind the lateral malleolus or weakness everting the foot.
• High-ankle (syndesmosis) sprain. Pain over the syndesmosis with squeeze + external rotation — needs longer recovery.
• Lateral malleolus fracture. Bone-point tenderness positive on Ottawa rules — get an X-ray.

If your symptoms don’t fit the textbook pattern, ask your podiatrist which differentials they ruled out — that conversation often shortcuts months of trial-and-error treatment.

Most Common Mistake We See

The most common mistake we see is: Returning to sport as soon as the pain resolves. Fix: first pass a 30-second single-leg balance test with eyes closed and complete a graded return-to-sport progression.

Warning Signs That Need Same-Day Care

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What is Ankle sprain?

Ankle sprain is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.

Symptoms and warning signs

Common signs of ankle sprain include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.

Conservative treatment options

Most cases of ankle sprain respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.

When is surgery considered?

Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.

Recovery timeline and prevention

Recovery from ankle sprain varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.

Frequently Asked Questions

When should I see a podiatrist?

See a podiatrist if: foot or ankle pain has lasted more than 2–4 weeks without improvement, you’re changing your gait to avoid pain, you have an open wound or sore that isn’t healing, you notice nail discoloration or thickening, you have diabetes and any foot concern, or pain is severe enough to wake you at night. Most foot conditions are easier and cheaper to treat early — what starts as a minor issue can become a surgical problem with months of delay.

What is the difference between a podiatrist and an orthopedic surgeon?

Podiatrists (DPM — Doctor of Podiatric Medicine) specialize exclusively in the foot, ankle, and lower leg. Orthopedic surgeons (MD/DO) have broader musculoskeletal training but variable foot/ankle subspecialization. For foot and ankle-specific problems, a podiatrist often has more focused training and experience. For injuries involving the leg above the ankle, complex pediatric cases, or multi-level reconstruction, orthopedic consultation may be appropriate. We frequently co-manage patients with orthopedic colleagues.

How do I know if my foot pain is serious?

Signs that warrant same-day or next-day evaluation: severe pain that appeared suddenly without clear cause, swelling, redness, and warmth that appeared suddenly (possible gout, infection, or Charcot fracture), an open wound that looks infected (redness spreading, pus, warmth), inability to bear weight, or any foot problem in a diabetic patient. Pain that’s been present for weeks and is stable is important but not an emergency — schedule within 1–2 weeks.

Can foot problems cause back and knee pain?

Yes — this is a kinetic chain effect. Abnormal foot mechanics (overpronation, supination, leg length discrepancy) cause compensatory changes in knee, hip, and lumbar alignment. Roughly 30% of patients presenting to our clinic with knee pain have a treatable foot-level biomechanical cause. Correcting foot mechanics with orthotics or appropriate footwear often provides significant knee and back relief. If you have chronic knee or back pain and haven’t had your foot mechanics evaluated, it’s worth a consult.

Are orthotics worth it?

For the right conditions, yes — custom orthotics are among the most cost-effective interventions in podiatry. They’re most effective for: plantar fasciitis, flat feet with secondary knee/back pain, leg length discrepancy, metatarsalgia, posterior tibial tendon dysfunction, and diabetic foot pressure management. Quality OTC orthotics ($35–60) resolve symptoms for 60% of patients with mild-to-moderate conditions. Custom orthotics are appropriate when OTC options have failed or when the biomechanical problem is complex. We cast custom orthotics in-office.

How do I choose the right running shoes?

Start with your foot type (flat, neutral, high arch) and running pattern (overpronator, neutral, supinator). Flat feet and overpronators do best in stability or motion-control shoes. Neutral feet do well in neutral-cushioned shoes. High arches need maximum cushioning with flexible soles. Always buy running shoes at the end of the day (foot swelling peaks then), get properly fitted by a specialist, and replace every 300–500 miles. If you’ve been injured repeatedly, a gait analysis can identify the mechanical flaw driving your injury pattern.

What is the difference between a sprain and a fracture?

A sprain is a ligament injury (the tissue connecting bones); a fracture is a break in the bone itself. Both can occur with the same trauma (ankle roll, fall). The old test — ‘if you can walk, it’s not broken’ — is wrong; many fractures are initially weight-bearable. Key differences: a fracture typically produces localized bone tenderness along the bone itself, while a sprain is tender over the ligament. X-ray is the standard to differentiate. High-grade sprains without proper treatment can be as disabling as fractures.

How do I prevent foot and ankle injuries?

The four most impactful prevention strategies: (1) Supportive, appropriately fitted footwear for your foot type and activity. (2) Gradual activity progression — the 10% rule (never increase weekly mileage or intensity by more than 10%). (3) Regular calf and ankle mobility work. (4) Strengthening the posterior tibial tendon, peroneals, and intrinsic foot muscles. Most overuse injuries are preventable; most acute injuries are not — but ankle sprain recurrence (60–70% without rehab) is prevented by balance and proprioception training.