Also known as ulnar drift, it occurs when your knuckles—called the metacarpophalangeal (MCP) joints—become swollen, causing your fingers to bend abnormally toward the ulna bone on the ...

Thrombosis of the ulnar artery can be a cause of significant morbidity. Most often a consequence of blunt trauma to the hypothenar eminence of the hand, it may be attributable to one traumatic ...

To address the controversy, Kevin Chung and colleagues enrolled 163 rheumatoid arthritis patients with severe metacarpophalangeal joint ulnar drift and extensor lag deformities in a NIH-funded ...