Athletes know the frustration of an ankle injury, but a high ankle sprain is a different challenge altogether. Unlike a classic lateral ankle sprain, this injury involves the ligaments that connect the tibia and fibula—called the syndesmosis. Because of this unique anatomy, a high ankle sprain often has a longer recovery time and requires more structured care. Understanding what a high ankle sprain is and why it heals differently helps athletes protect performance and safely return to sport.
Anatomy of a High Ankle Injury
A high ankle sprain affects the syndesmotic ligaments, located above the ankle joint. These ligaments stabilize the two lower-leg bones, preventing them from separating during weight-bearing activities. When these ligaments stretch or tear, even simple movements like walking or pivoting can become painful.
Because these ligaments directly support load-bearing mechanics, a high ankle sprain treatment plan often takes longer than treatment for a low ankle sprain. Healing time is slowed because every step stresses the injured structures.
Common Causes
High ankle sprains almost always occur during sports that involve high-speed cutting, rotation, or explosive transitions, such as football, soccer, lacrosse, basketball, and skiing. The classic mechanism is external rotation of the foot while the leg rotates inward.
Athletes may experience sharp pain above the ankle, often accompanied by difficulty pushing off, jumping, or changing direction.
What Are the Symptoms of a High Ankle Sprain?
Because symptoms may appear mild at first, many athletes try to “walk it off.” However, signs of a syndesmotic injury can include:
- Pain above the ankle, especially when turning the foot outward
- Difficulty bearing weight
- Swelling that travels up the shin
- A sense of instability
- Pain during calf squeeze (a common exam test)
If these symptoms persist, early evaluation is crucial to avoid worsening the injury or extending the sprain recovery time.
How Are High Ankle Sprains Diagnosed?
Sports medicine foot and ankle specialists use a combination of physical exam tests and imaging. Diagnosis may include:
- Squeeze test or external rotation test
- X-rays to evaluate the separation between the tibia and fibula
- MRI for detailed ligament assessment
- Stress imaging to detect syndesmotic instability
Accurate diagnosis ensures that the high ankle sprain treatment plan matches the injury’s severity.
How To Treat an Ankle Sprain?
Conservative Treatments
Most high ankle sprains, especially mild to moderate syndesmotic injuries, respond well to nonsurgical care, including:
- RICE (Rest, ice, compression, elevation)
Ice may help early inflammation, making it a common first step in how to treat a high ankle sprain.
- Immobilization, such as a walking boot
- Restricted weight-bearing, sometimes requiring crutches
- Anti-inflammatory medication, as advised
- Physical therapy to restore strength and stability
Rehabilitation focuses on regaining motion, building calf and peroneal strength, and improving balance and sport-specific movement patterns.
Surgical Treatment
More severe sprains, in which the tibia and fibula separate or show instability, may require surgical fixation. This often involves screws or tightrope-like devices that help keep the bones better aligned during healing. Surgical cases often involve longer supervised recovery but excellent outcomes for athletes.
Recovery and Future Outlook
Recovery from a high ankle sprain typically ranges from 6–12 weeks, though more severe cases, especially those involving ligament tearing, can take several months. With proper rest, rehabilitation, and a gradual return to activity, most people regain full function and stability.
The long-term outlook is generally good, but returning to sport too soon can increase the risk of chronic instability or reinjury. This makes sticking to a structured rehab plan especially important.
FAQ
What is the difference between a high ankle sprain and a regular ankle sprain?
A high ankle sprain injures the syndesmotic ligaments above the joint, while a regular sprain injures the ligaments on the outside of the ankle.
Do high ankle sprains require surgery?
Only when there is instability between the tibia and fibula or associated fractures.
Can you walk on a high ankle sprain?
Sometimes, but it may worsen the injury. Difficulty walking or pushing off is a key sign of syndesmotic involvement.
Does ice help a high ankle sprain?
Yes. Ice reduces swelling early on.
How long does it take to recover from a high ankle sprain?
Recovery from a high ankle sprain typically ranges from 6–12 weeks, though more severe cases, especially those involving ligament tearing, can take several months
Get Back in the Game
EmergeOrtho-Blue Ridge Region’s foot & ankle team has vast experience diagnosing and treating ankle sprains in athletes of all ages and levels. If you want to benefit from their expertise, take a look at this free ankle sprain ebook and schedule an appointment to start your recovery today.
