Basal Joint Osteoarthritis
Arthritis is a condition that irritates or destroys a joint. Although there are several types of arthritis, the one that most often affects the joint at the base of the thumb (the basal joint) is osteoarthritis (degenerative or “wear-and-tear” arthritis).
- Pain with activities that involve gripping or pinching, such as turning a key, opening a door, or snapping your fingers.
- Swelling and tenderness at the base of the thumb.
- An aching discomfort after prolonged use.
- Loss of strength in gripping or pinching activities.
- An enlarged, “out-of-joint” appearance.
- Development of a bony prominence or bump over the joint.
- Limited motion.