Hallux metatarsophalangeal joint fusion for the rheumatoid forefoot.

Forefoot problems in patients who have rheumatoid arthritis are common. The progressive joint destruction causes a redistribution of weight about the forefoot, with a diminished weightbearing capacity of the first metatarsophalangeal (MTP) joint. Changes around the first MTP joint include synovitis, joint instability with subluxation, and arthritic change.