TITLE

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

AUTHOR(S)
Young-Kyun Lee; Yong-Chan Ha; Jeong Joon Yoo; Kyung-Hoi Koo; Kang Sup Yoon; Hee Joong Kim
PUB. DATE
July 2010
SOURCE
Journal of Bone & Joint Surgery, American Volume;Jul2010, Vol. 92-A Issue 8, p1715
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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 pros- theses, 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.
ACCESSION #
52462873

 

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