Ski & Snowboard Ankle Injuries | Dr Ali Abbasian London
The Ski season is upon us. Snow has been falling on the Alps and the excitement is growing. Last minute purchases of gloves and thermals are in full flow. But every winter the same conversation happens: people heading to the Alps talk about ACL tears, broken collarbones and wrist fractures. The big, obvious ski injuries everyone knows. Ski ankle injuries rarely get a mention. It’s tightly wrapped in a solid boot, it feels safe, and most people assume it can’t get hurt.
That’s only partly true. Ski and snowboard boots protect the ankle from the typical lateral ankle sprain but can create others. The design of the boot changes how the force travels through the leg. Instead of twisting at the ankle and getting the typical ankle sprain, it moves higher or deeper leading to injuries that are easy to miss and can potentially be more serious.
Below are the main ankle and foot problems I see every ski season and what to look out for whether you are a physio assessing these patients or a skier planning your next trip.
1. High-Ankle (Syndesmosis) Injuries — The Classic Skier’s Injury
When a ski catches the snow and twists outward, the external-rotation force on the ankle can be several times higher than it would be if only the foot were involved. With a stiff boot locking the foot and ankle together, the ski acts as a long lever which is about three times the length of the foot. So the same body weight generates roughly three to four times the rotational moment at the ankle. That torque is transmitted directly to the syndesmosis, explaining why high-ankle (syndesmotic) sprains are much more common in skiing than in other sports. The longer the ski the greater the force. So even at low speed or a fall from standing, serious damage can be done, if the binding doesn’t release. Sometimes a small fragment of bone pulls off the back of the tibia (posterior malleolus fracture).
These are often labelled as “high ankle sprains”, but that makes them sound mild. They’re not. They take time to heal and can cause ongoing pain if missed early. Some Ski ankle injuries may need surgical stabilisation.
For patients:
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Pain sits above the ankle joint, not on the side.
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Turning or climbing stairs makes it worse.
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Swelling is often mild, which can be misleading.
- It can happen even with a minor fall.
For physios:
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Tenderness over the anterior inferior tibiofibular ligament.
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Positive external-rotation or squeeze test.
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Pain out of proportion to swelling.
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Consider MRI or weight-bearing CT if suspicion remains high.
2. Lateral Process of the Talus Fracture — The Snowboarder’s Fracture
Snowboarders live in softer boots with more movement. When the ankle is forced upwards and inwards (dorsiflexion + inversion), a small ridge of bone on the outer talus (lateral talar process) gets jammed and can crack.
Unfortunately the small fracture can be difficult to see on standard x-rays of the ankle and its therefore commonly missed. Due to the pain being on the outer side of the ankle patients are labelled as having had an ankle sprain. If it looks and feels like a sprain, but doesn’t get better then this is the “snowboarder’s fracture.” These injuries can lead to serious morbidity and need to be assessed urgently. large fracture fragments are best fixed. I have managed many missed injuries some of which have resulted in permanent arthritis in the subtalar joint.
For patients:
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Pain and swelling on the outside of the ankle that won’t settle.
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Pain when pushing off or landing.
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You can often still walk, which makes it easy to ignore.
For physios:
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Local tenderness just below and behind the fibula.
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Pain with dorsiflexion and inversion.
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If symptoms haven’t improved after two to three weeks, request a CT — plain X-rays often miss it.

Lateral Talus fracture
3. Peroneal Tendon Injuries & Fifth-Metatarsal Base Fractures
These two often come as a pair. A sudden inversion catching an edge or stepping awkwardly off a lift can tear or dislocate the peroneal tendons and sometimes pull a fragment of bone from the base of the fifth metatarsal.
For patients:
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A sharp “snap” or tearing feeling on the outer ankle.
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Pain behind the fibula or along the outer foot.
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Still sore weeks later, especially when pushing the foot outwards.
For physios:
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Watch for tendon subluxation on resisted eversion.
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Palpate the fifth-metatarsal base for tenderness.
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These injuries often occur together — check tendons and bone.
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Ultrasound or MRI if symptoms persist beyond expected recovery.
Boot Fit & Pre-Season Strength
A lot of these Ski ankle injuries injuries can be prevented.
Boot fit:
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Snug enough to stop excess movement but not so tight that it locks the joint completely.
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Check binding release settings. If its too stiff and you risk twisting forces.
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Replace worn liners that let your ankle roll inside the boot.
Pre-season prep:
A few simple exercises before you go make a big difference:
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Single-leg balance work (wobble board or cushion).
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Calf raises and peroneal strengthening with a resistance band.
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Core and hip stability exercises for better landing control.
Even two short sessions a week in the month before your trip help reduce fatigue-related falls which is the root of most ski injuries.
When to Get It Checked
If ankle or foot pain isn’t improving within a week of a fall or if it feels higher, deeper, or sharper than a normal sprain the you need to get it checked.
Persistent pain, swelling that lingers, or trouble pushing off the ground are red flags.
Most of these injuries heal fully with the right diagnosis and plan, but only if they’re recognised early.
Ali Abbasian is a Consultant Orthopaedic Surgeon specialising in Foot and Ankle Surgery – click here to find out more or get in touch






