Arthritis of the base of the thumb


In the hand, the second most common joint to develop osteoarthritis is the joint at the base of the thumb, known as the basilar joint, between the thumb metacarpal and a bone of the wrist called the trapezium.

Arthritis in the basilar joint of the thumb is more common in women than in men. It usually starts after age 40. Past injuries to this joint such as fractures or sprains may increase the chances of developing this type of arthritis.

Symptoms of Arthritis of the base of the thumb


Close inspection will sometimes show a lump at the base of the thumb. Forcing the thumb firmly against the wrist bone while moving the joint will usually produce pain and may produce a gritty feeling indicative of the bones are rubbing against each other.

Treatment of Arthritis of the base of the thumb


There are a number of surgical options available including removing one of the bones at the base of the thumb, fusing the joint or replacing the joint.

Find a condition


Emergency clinicians

Mr. Brian Cohen
MD FRCS (Tr&Orth)
Mr. Jig Patel
MB BS FRCS (Tr&Orth)
Mr. Rohit Madhav
MB BS FRCS (Tr&Orth)
Mr. R. Lloyd Williams
MB BS FRCS (Tr&Orth)
Mr. Sean Curry
MB BS FRCS (Tr&Orth)