COMPARISON OF THE RESULTS BETWEEN THREE AND FOUR CORNER ARTHRODESIS IN WRIST ARTHRITIS

Scaphoid non-union advanced collapse (SNAC) and scapholunate advanced collapse (SLAC) are predictable forms of arthritis that occurs after scaphoid non union and scapholunate instability respectively.The main presentation is pain and limited range of motion, There are many treatment options one of them include limited carpal fusion which was a well-established techniques for management of wrist arthritis with specific prerequisites which is healthy radiolunate joint.Limited carpal fusion has been evolved over the years, including three corner arthrodesis (4CA) which specifically entails the excision of the scaphoid and the arthrodesis of the capitate, lunate, and hamate which is considered the gold standard treatment for elimination of pain and improving hand grip.But 4CA has some drawbacks regarding limitation of wrist range of motion and non-union ratewhich leaded to development of new techniques with many modifications such asthree corner arthrodesis with triquetrum excision (3CA).AIM OF THE WORK:The aim of this study was doing a comparison of three and four corner arthrodesis as a palliative procedures of wrist osteoarthritis.