How can I prevent getting skier's thumb?
You should let go of the ski poles during all falls. Falling onto an outstretched hand while skiing without the ski pole in hand should minimize the chance of injury.
You can prevent skier's thumb during a car accident by keeping your thumbs on the outside of the steering wheel along with your fingers.
From: Skier's Thumb WebMD Medical Reference
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
This tool does not provide medical advice. See additional information.