Lower leg fractures to the tibia, fibula or femur can occur in a twisting fall. Diagnosis is based on history and X-ray exam. The Achilles tendon can be ruptured as the result of an abrupt stop and forward fall. 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.