Norwegian Distal Ulna Resection - Replacement Study

Osteoarthritis of the joint between the forearm bones at the wrist (distal radioulnar joint, DRUJ) is a common sequel of fracture and ligament injuries or degenerative disease of the wrist. Intact DRUJ is important for normal load transfer from the hand to the forearm. DRUJ osteoarthritis leads to pain and decreased lifting capacity and rotation of the forearm. The standard treatment is resection of the ulnar head, known as the Darrach procedure. After the resection there is no longer contact in the affected joint, however, some patients can experience instability or impingement between the forearm bones. With ulnar head implant replacement may the load transfer and the stability between the forearm bones less affected. Studies with good long term results are published with both resection and replacement. However, these methods were never compared and thus it is not clear, which of the m