Cementless Acetabular Socket Revisions Using Metasul Metal-on-Metal Bearings
Kyung Soon Park, MD,* Taek Rim Yoon, MD,* Eun Kyoo Song, MD,* and Keun Bae Lee, MD†
* Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-Gun, Jeonnam, Korea
† Department of Orthopaedics, Chonnam National University Medical School and Hospital, Gwangju, Korea
The Journal of Arthroplasty Vol. 25 No. 4 2010
Abstract: Thirty-four hips were treated with cementless acetabular socket revisions using a metalon-metal bearing. The causes of revision were aseptic loosening in 33 hips and septic loosening in 1 hip. Revisions were performed for acetabular sockets in 28 hips and for acetabular sockets and femoral stems in 6 hips. Mean follow-up duration was 6.2 years (range, 4.0-9.1 years), and mean Harris Hip Scores improved from 56 to 92 points. No hip required further revision for aseptic loosening. Focal femoral osteolysis newly developed in zone I in 1 hip, which was treated by curettage and bone grafting. The authors suggest that second-generation metal-on-metal bearings in cementless acetabular socket revisions can achieve good medium-term clinical and radiographic results.
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