Postoperative dislocation after Charnley low-friction arthroplasty
Etienne, A.; Cupic, Z.; Charnley, J.
Clinical Orthopaedics and Related Research 132: 19-23
1978
ISSN/ISBN: 0009-921X PMID: 567107 Document Number: 127201
The dislocation rate after the Charnley arthroplasty with the 22 mm diameter femoral head was 0.8% in 3,820 arthroplasties performed before 1971. Over this era the annual rate ranged from 0.5% to 1.4% without any apparent explanation. Following the routine use of a low position for the socket in the acetabulum and the Long Posterior Wall design of socket, the dislocation rate fell to 0.4% over 4,706 arthroplasties and the annual dislocation rate over 4 years ranged between 0.5% and 0.2%.