This injury often happens when the skier collides with a large mogul. However, ankle sprains and ligament injuries are uncommon because the ski boot tends to protect the ankle joint. Knee injuries are extremely common. Diagnosis of knee injuries is usually based on history and physical exam, but occasionally requires techniques such as MRI to arrive at a conclusive diagnosis. This injury occurs during a fall onto the outstretched hand while holding onto the ski pole.
Prompt treatment is imperative to prevent chronic laxity looseness in the thumb.
In general, snowboarders are subject to many of the same injuries as skiers. Because both feet are fixed to the board, knee injuries are less common. Fractures to the forearm and wrist are much more common in snowboarders than in skiers. Jumps and aerial maneuvers greatly increase the likelihood of significant head, spinal and abdominal injury. Considering this daunting list of potential injuries, one might contemplate the purchase of full body armour, or at least a good insurance policy, before heading out onto the slopes.