Ulnar deviation is a deformity of the hand that affects people with rheumatoid arthritis (RA) and other inflammatory diseases. Also known as ulnar drift, it occurs when your knuckles—called the ...

wkes.eu The extensor carpi ulnaris (ECU) muscle plays a key role not only in the active movements of wrist extension and ulnar deviation but also in providing stability to the ulnar side of the wrist.

Scaphoid view, a PA view with the wrist in ulnar deviation, is indicated when there is a strong clinical suspicion of scaphoid fracture but four-view wrist exam is negative (Fig. 8). A carpal ...