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Alumina-on-Alumina Total Hip Arthroplasty: A Concise Follow-up, at a Minimum of Ten Years, of a Previous Report*

Lee, Young-Kyun MD; Ha, Yong-Chan MD; Yoo, Jeong Joon MD; Koo, Kyung-Hoi MD; Yoon, Kang Sup MD; Kim, Hee Joong MD

Journal of Bone & Joint Surgery - American Volume: 21 July 2010 - Volume 92 - Issue 8 - p 1715–1719
doi: 10.2106/JBJS.I.01019
Scientific Articles

Abstract: We previously reported the five-to-six-year results of the use of third-generation alumina-on-alumina bearings in a consecutive series of 100 primary cementless total hip arthroplasties. This report presents the longer-term outcomes of these same bearings, at a minimum of ten years postoperatively. Eighty-six of eighty-eight hips available for the study retained the original bearings at the time of the latest follow-up. Thirteen hips were associated with noise, and six hips demonstrated fretting of the femoral neck on radiographs. Two hips required a change of the bearings because of a ceramic head fracture. The ten-year survival rate of the alumina-on-alumina total hip prostheses, with revision of any implant for any reason as the end point, was 99.0%. On the basis of those results, we concluded that the rate of survival of primary cementless total hip prostheses with third-generation alumina-on-alumina bearings is excellent at ten years. However, the risk of ceramic fracture, noise, and impingement between the metal neck and the ceramic liner should be a concern to surgeons, and patients should be informed of these risks before surgery.

Level of Evidence: Therapeutic Level IV. See Instructions to Authors for a complete description of levels of evidence.

Department of Orthopaedic Surgery, Seoul National University College of Medicine, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, South Korea. E-mail address for H.J. Kim: oskim@snu.ac.kr

Copyright 2010 by The Journal of Bone and Joint Surgery, Incorporated
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