Thumb base osteoarthritis
Wear of the joint at the base of the thumb, causing pain with pinching and gripping.
Overview
Thumb base (carpometacarpal) osteoarthritis is a common form of hand arthritis, causing pain at the base of the thumb with pinching and gripping. Splinting, exercise and joint protection help, with surgery for advanced cases.
Symptoms
- Pain at the base of the thumb
- Weak or painful pinch grip
- Swelling or a bony prominence at the joint
- Stiffness and reduced thumb movement
Causes
- Age-related cartilage wear
- Repetitive pinching and gripping
- Previous thumb injury
Treatment
- Splinting and joint protection advice
- Thumb and hand strengthening
- Pain management and injection
- Surgical opinion for advanced disease