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- Title
Femoral component failure in the Oxford unicompartmental knee arthroplasty: a case report.
- Authors
Argelo, Kirsten Ds; Burger, Mick A; Hoozemans, Marco Jm; Temmerman, Olivier Pp; Argelo, Kirsten D S; Hoozemans, Marco J M; Temmerman, Olivier P P
- Abstract
<bold>Introduction: </bold>The present case report describes a patient who presented with an early complication after a unicompartmental knee arthroplasty. It is not the first case in this subject but the unique aspect of this case report rests on the timing in which the failure occurred. <bold>Case Presentation: </bold>A 64-year-old Caucasian man received a medial unicompartmental knee arthroplasty (Oxford® Partial Knee) due to isolated anteromedial osteoarthritis of his right knee. His initial recovery was good, however, after 3 months he presented with acute pain and a locked knee. Radiographs showed a complete loosening and migration of the femoral component. During revision surgery no clear explanation was found for failure of the femoral component. <bold>Conclusions: </bold>The most likely explanation for loosening is the combination of peak stresses on the posterior facet of the femoral components of a unicompartmental knee arthroplasty in a patient in a cross-legged knee position causing bone-cement or cement-implant interface failure. Further research is necessary in prosthetic designs and applications of the unicompartmental knee arthroplasty to determine the origin of this early complication.
- Publication
Journal of Medical Case Reports, 2014, Vol 8, Issue 1, p419
- ISSN
1752-1947
- Publication type
journal article
- DOI
10.1186/1752-1947-8-419