Medical Disclaimer
The information on this page is for educational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment.
Always seek the advice of your doctor or other qualified health professional with any questions you may have regarding a medical condition.
đ¨Emergency? If you have severe symptoms, difficulty breathing, or think it's an emergency, call 000 immediately.
High Ankle Sprains (Syndesmotic Injuries)
High ankle sprains (syndesmotic injuries) are tears of the ligaments connecting the tibia and fibula bones above the ankle joint, occurring from external rotation injuries when the foot is planted and the body rotates outward - they account for 10-15% of ankle sprains but are more severe than typical lateral ankle sprains, causing pain above the ankle with walking and weight-bearing, taking 3-6 months to heal versus 4-6 weeks for lateral ankle sprains - treatment depends on stability: stable injuries heal with CAM boot immobilization and protected weight-bearing for 4-6 weeks, while unstable injuries (widening of the tibiofibular joint on weight-bearing X-rays) require surgery with syndesmotic screw or suture button fixation to restore ankle stability.
đWhat is High Ankle Sprains (Syndesmotic Injuries)?
High ankle sprains (syndesmotic injuries) are tears of the ligaments connecting the tibia and fibula bones above the ankle joint, occurring from external rotation injuries when the foot is planted and the body rotates outward - they account for 10-15% of ankle sprains but are more severe than typical lateral ankle sprains, causing pain above the ankle with walking and weight-bearing, taking 3-6 months to heal versus 4-6 weeks for lateral ankle sprains - treatment depends on stability: stable injuries heal with CAM boot immobilization and protected weight-bearing for 4-6 weeks, while unstable injuries (widening of the tibiofibular joint on weight-bearing X-rays) require surgery with syndesmotic screw or suture button fixation to restore ankle stability.
đŦWhat Causes It?
- External rotation injury (foot planted, body rotates outward) - classic mechanism in skiing, football, rugby
- Hyperdorsiflexion injury (ankle bent upward forcefully) forcing tibia and fibula apart
- Eversion ankle sprain (foot rolls outward) with severe force tearing syndesmotic ligaments
- High-energy ankle fractures (Maisonneuve fracture - fibula fracture with syndesmotic injury)
- Direct blow to lateral leg forcing fibula away from tibia
â ī¸Risk Factors
You may be at higher risk if:
- Contact sports (football, rugby, soccer, ice hockey)
- Skiing (boot height prevents lateral ankle sprain, forces syndesmotic injury instead)
- Previous ankle injuries (weakened ligaments predispose to re-injury)
- Poor ankle proprioception or balance (increases injury risk)
- Rapid cutting or pivoting movements in sports
đĄī¸Prevention
- âStrengthen ankle muscles and improve proprioception (balance training reduces injury risk)
- âUse proper technique in cutting and pivoting sports
- âWear appropriate footwear for sport (ankle support)
- âAddress previous ankle injuries completely before returning to sport
- âConsider ankle bracing or taping for high-risk sports after previous injury