A woman who has had rheumatoid arthritis for years is starting to notice that her fingers are drifting to the side. What is term commonly used for this condition?

A) Radial drift
B) Ulnar deviation
C) Swan-neck deformity
D) Dupuytren contracture

Fingers drift to the ulnar side because of stretching of the articular capsule and muscle imbalance caused by chronic rheumatoid arthritis. A radial drift is not observed. Swan-neck deformity is a flexion contracture in the metacarpophalangeal joint, then hyperextension of the PIP joint, and flexion of the DIP joint which resembles the curve of a swan's neck. Dupuytren contracture is a flexion contracture of the digits. It first affects the fourth digit, then the fifth digit, and then third digit.