Hands and wrists are the most common location for deformities caused by
rheumatoid arthritis. As joint damage progresses, the joints between the hand
and fingers (metacarpophalangeal joints—MCPs) swell and move upward (dorsal
subluxation). The tendons over the joints slip and cause the fingers to bend
toward the little finger (ulnar drift). In addition, muscles in the hand thin
and weaken, creating valleys between the long tendons.
ByHealthwise Staff Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine Specialist Medical ReviewerNancy Ann Shadick, MD, MPH - Internal Medicine, Rheumatology
Anne C. Poinier, MD - Internal Medicine & Nancy Ann Shadick, MD, MPH - Internal Medicine, Rheumatology
The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.