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Home/Patient Education/Fractures/Adult Fractures/High Ankle Sprain / Syndesmotic Injury
Fracture Care · Adult · Leg and Ankle

High Ankle Sprain / Syndesmotic Injury

Syndesmotic injuries usually recover more slowly than common lateral ankle sprains.

This page explains how a high ankle sprain / syndesmotic injury is commonly managed, in plain language, based on Dr. Kee's typical approach to this injury.

Body Region
Leg and Ankle
Age Group
Adult
Treatment
Variable
Expected Bone Healing
Stable injuries often take 6–12 weeks; unstable injuries longer.

Every fracture is different. Treatment varies based on the exact fracture pattern, displacement, age, whether surgery is needed, bone quality, other injuries, and how an individual heals. This page is general education, not your personal treatment plan — always follow the specific instructions given to you by Dr. Kee's office.

Table of Contents
What Is This Injury?

Syndesmotic injuries usually recover more slowly than common lateral ankle sprains.

Bone Doc Tip

Persistent pain above the ankle after a ‘sprain’ may signal syndesmotic injury.

How Is It Treated?

This fracture may be treated with or without surgery, depending on the specific fracture pattern, how much the bone has shifted (displacement), and your individual situation. Your surgeon will determine the best approach for you.

Brace, Cast, Splint, or Sling

Boot or cast for stable injuries; unstable syndesmotic disruption requires fixation.

Walking or Using the Injured Limb

Protected weight bearing; severe injuries may begin non-weight bearing.

For a full explanation of what these weight-bearing terms mean, see our Weight-Bearing Guide.

When Does Motion Begin?

Avoid external-rotation stress; begin controlled ankle motion as stability permits.

Physical Therapy

Progressive gait, calf, balance, and sport-specific rehabilitation.

Follow-Up and Imaging

Early reassessment; prolonged symptoms warrant specialist review.

Recovery Timeline
Short AnswerRecovery generally moves through protection, motion, weight-bearing, strengthening, and return to activity — at a pace your surgeon sets for your specific fracture.

Every fracture moves through the same general phases, though the exact timing is different for every patient:

1
Injury or Surgery
The fracture occurs, or is surgically stabilized if your surgeon recommends fixation.
2
Early Protection
Boot or cast for stable injuries; unstable syndesmotic disruption requires fixation.
3
Begin Motion
Avoid external-rotation stress; begin controlled ankle motion as stability permits.
4
Progress Use / Weight Bearing
Protected weight bearing; severe injuries may begin non-weight bearing.
5
Strengthening
Physical therapy often helps rebuild strength once your surgeon confirms it's safe to begin.
6
Return to Activity
Return to work, school, driving, and sports is guided by your surgeon as healing progresses.
Return to Activity

Work or School: Modified duty based on walking tolerance.

Sports or High-Risk Activity: Often longer than a routine lateral ankle sprain; return after pain-free cutting and external-rotation stress.

Watch For — Specific to This Injury

Mortise widening, proximal fibular tenderness, inability to bear weight, deltoid injury, open injury, or neurovascular deficit.

General Warning Signs — When to Call

  • Increasing pain that isn't controlled by your prescribed plan
  • New numbness or weakness
  • Fingers or toes that become pale, blue, cold, or very swollen
  • A cast or splint that becomes excessively tight, wet, damaged, or foul-smelling
  • New drainage, spreading redness, fever, or wound concerns

See our full When to Call page for the difference between routine office contact and emergency evaluation.

Chest pain, shortness of breath, or symptoms of a possible blood clot, or any life-threatening emergency — call 911 or go to the nearest emergency department.

Frequently Asked Questions

How long will I be in a cast, splint, or brace for a high ankle sprain?

Boot or cast for stable injuries; unstable syndesmotic disruption requires fixation.

When can I return to work, school, driving, or sports after a high ankle sprain?

Your surgeon will guide when it's safe to return to these activities based on how your specific fracture is healing. Follow the instructions given specifically to you.

Will I need another surgery to remove hardware?

Syndesmotic screw removal is not universally routine; depends on construct and symptoms.

Still Have Questions?

Every fracture heals differently. If you have questions about your treatment plan, reach out to Dr. Kee's office.

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