stress xrays

Definition

High ankle sprain

Epidemiology

Uncommon

- often unrecognised or misdiagnosed as lateral ligament injuries

- seen in ice hockey

1-15% of ankle sprains involve the syndesmosis

Mechanism Injury

Hyperdorsiflexion and forced external rotation

Anatomy

Structures

- anterior inferior tibiofibular ligament (AITFL)

Definition

Chronic instability due to rupture of one or more parts of the lateral ligament

Anatomy

Progressive injury

1. Anterolateral capsule

2. ATFL

3. CFL

NHx

Can lead to ankle OA over time