S-Space College of Medicine/School of Medicine (의과대학/대학원) Orthopedic Surgery (정형외과학전공) Journal Papers (저널논문_정형외과학전공)
Alumina-on-Alumina Total Hip Arthroplasty A Concise Follow-up, at a Minimum of Ten Years, of a Previous Report
- Lee, Young-Kyun; Ha, Yong-Chan; Yoo, Jeong Joon; Koo, Kyung-Hoi; Kim, Hee Joong; Yoon, Kang Sup
- Issue Date
- JOURNAL BONE JOINT SURGERY INC
- JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME; Vol.92A(8); 1715-1719
- 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.