Rydholm U, Tjörnstrand B, Pettersson H, Lidgren L
J Bone Joint Surg Br. 1984 Nov;66(5):737-41. doi: 10.1302/0301-620X.66B5.6501371.
Fifteen patients with rheumatoid arthritis had 19 elbow arthroplasties with the Wadsworth type of surface replacement prosthesis. After a follow-up period averaging 30 months, 11 patients with 15 elbow arthroplasties were entirely satisfied with their freedom from pain and range of movement. Radiologically, however, the humeral component was loose in 10 of the 19 elbows and the ulnar component in 5. Two patients had reoperation, one to remove a prosthesis for early deep infection and one to exchange a humeral component which was loose. The risk of mechanical loosening is reduced by accurate positioning of the humeral component, but there is a high potential for failure. Changes in the design of the prosthesis and better instrumentation for alignment of the components are desirable. Prosthetic replacement of the elbow should still be regarded as experimental.
15例类风湿性关节炎患者接受了19次采用沃兹沃思型表面置换假体的肘关节成形术。在平均30个月的随访期后，11例接受15次肘关节成形术的患者对其无痛和活动范围感到完全满意。然而，从放射学角度看，19个肘关节中有10个的肱骨部件松动，5个的尺骨部件松动。2例患者接受了再次手术，1例是为了清除早期深部感染的假体，另1例是为了更换松动的肱骨部件。通过精确放置肱骨部件可降低机械性松动的风险，但仍有较高的失败可能性。假体设计的改进以及用于部件对线的更好器械是很有必要的。肘关节的假体置换仍应被视为试验性的。
