HealthSheets™


Understanding Skier’s Thumb

Side view of hand showing ulnar collateral ligament.Skier’s thumb is an injury to the ulnar collateral ligament. This ligament is at the base of the thumb on the side near the pointer (index) finger. It helps keep the thumb stable when grasping or pinching objects. With skier’s thumb, the ligament is stretched or torn (sprained). This can cause pain. It can also limit movement and use of the thumb. Depending on how severe the injury is, it may take a few weeks or longer for the thumb to heal. This injury is also sometimes called gamekeeper's thumb.

Causes of skier’s thumb

Skier’s thumb is most often caused by a fall on an outstretched hand. Skiers tend to get this injury, which is how the condition gets its name. But the injury can also occur as the result of any activity or accident that forces your thumb into an extreme position.

Symptoms of skier’s thumb

Symptoms include pain, swelling, redness, and bruising. These symptoms occur in the thumb, but may spread to the hand in some cases. The injury can make it hard to hold or grasp things. For instance, holding a pen or glass or turning a doorknob may be difficult.

Treating skier’s thumb

Treatment for skier’s thumb may include any of the following: 

  • Prescription or over-the-counter medicines. These help reduce pain and swelling.

  • A splint, brace, or cast. This is worn to support your thumb and keep the thumb from moving. It may be needed for a few weeks or longer until the thumb heals.

  • Physical therapy and exercises. These help improve strength and range of motion of the thumb, and hand and wrist, if needed.

  • Surgery. You may need surgery if the ligament is severely stretched or torn, or if nearby tissues and bone are also injured. After surgery, you will need to wear a splint or cast ffor a month or longer until the injury heals.

Self-care measures

There are things you can do on your own to help relieve pain and swelling. They may include:

  • Limiting how much you move and use your thumb and hand

  • Applying an ice pack to the injured area

  • Keeping your hand raised (elevated) above heart level

  • Wrapping your thumb and nearby fingers with special tape or bandages

Possible complications of skier’s thumb

If the injury doesn’t heal properly, it has a higher chance of happening again. The injury can also become long-term (chronic). This can cause ongoing pain, weakness, or instability of the thumb. Over time, arthritis may develop in the joint at the base of the thumb. This can worsen pain and cause stiffness and limited thumb movement.

 

When to call your healthcare provider

Call your healthcare provider right away if you have any of these:

  • Fever of 100.4°F (38°C) or higher, or as directed

  • Symptoms that don’t get better with treatment, or get worse

  • Symptoms such as redness, warmth, swelling, bleeding, or drainage that occur near incision sites. This only applies if you had surgery.

  • New symptoms

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