Extensor tendon rupture over the metacarpal heads

Rupture of the extensor tendons is common in longstanding rheumatoid arthritis of the hand. The tendons commonly involved are those of the ring and little fingers and the common site of rupture is over the dorsal ulna and distal edge of the extensor retinaculum. We are reporting two cases of extensor tendon rupture over the metacarpal head of the middle finger due to prominent osteophytes.