Inactive Tutor answered 12/08/20
No. Pronation and supination does not occur at the radiocarpal joint, simply, due to wrist stability. The primary movements of the wrist or radiocarpal joint are extension, flexion, adduction and abduction. During the visual motion of pronation and supination, it appears that the wrist is involved due to the angular displacement of the hand. However, the wrist remains stable. The proximal and distal radioulnar joints within the forearm are the only ones involved in these movements.