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Identifying and Treating 'Skier's Thumb'

Posted by SEMI on 24 August 2015
Identifying and Treating 'Skier's Thumb'

As with all sports, skiing has an inherent potential for injuries to occur. The most common type of skiing injuries affect the knee ligaments and cartilage, occuring approximately twice as often as injuries to the thumb. But 'skier's thumb' is still an damaging injury that shouldn't be ignored.

Skier's thumb is a sprain to the ulnar collateral ligament of the thumb which lies on the inside aspect of the knuckle joint of the thumb closest to the hand. This ligament supports the medial or inner aspect of the thumb's metacarpophalangeal joint from being pulled too far outward away from the hand.

How can this ligament be sprained while skiing? It can be as innocent as falling onto the hand while holding a ski pole. The ski pole handle acts as a fulcrum on the outstretched thumb, applying force across the joint that stretches the ulnar collateral ligament. This can result in a grade 1 or 2 sprain or partial tear, or a more serious complete tear or grade 3. Pain is localized to the joint over the ligament with grade 1 and 2 sprains, especially with movements that further stretch the ligament. In the case of grade 3 sprains, pain is minimal as the ligament is completely torn. The thumb can be abnormally overstretched away from the hand creating an unstable joint. A small piece of bone can also become detached along with the ligament in the case of grade 3 sprains.

The seriousness of this type of injury is often overlooked by the victim, brushed off as a minor concern. However, the thumb is the most important joint in the hand and if left untreated, this type of injury can result in an unstable thumb and chronic pain. If this type of injury is suspected, the thumb should be x-rayed to rule out a fracture. In the case of grade 3 sprains, surgery is done to reattach the ligament and any bone fragments that may be present. The hand is immobilized for a period of time and followed up with a course of physiotherapy treatment to regain full range of motion and strength. Grade 1 and 2 sprains are treated with immobilization in a cast or splint for 6-8 weeks, followed by additional physiotherapy to regain full range of motion and strength.

Skiing without wearing the pole straps is the best prevention for this type of injury so that the ski pole will fall away from the hand in the event of a fall. Strapless or grip poles have not been found to be any better in preventing this type of injury from the conventional type poles with straps.

A sprained thumb left untreated can lead to chronic ligament laxity and chronic pain, so it should be checked out by a health care professional. Following this type of injury treatment sooner has better results than a ligament injury that has been left untreated for months.

SEMI can treat grade 1-3 skier thumb sprain's, as well as any sports-related injuries with our sports physiotherapy expertise. We'll provide movement pattern analysis, a hands-on assessment, patient education, and an individualized treatment plan to get you back playing the sport you love. 

Contact us today to set up an appointment with our trained sports physiotherapists!




Martina Kus  BSc. P.T.
Sport Physiotherapist

Printed: December 2006
Copyright ©2006 SEMI
Author: SEMI
Tags: Prevention Performance


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