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. Hallux MTP fusion in patients who have rheumatoid arthritis acts to permanently restore alignment and restore the medial column support of the foot, while at the same time enabling the first MTP to resume its original weightbearing role. Rheumatoid hallux MTP fusion and its rationale are reviewed.