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Squeaking as a cause for revision of a composite ceramic cup |
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| Authors: | Schlegel U J Bishop N Sobottke R Perka C Eysel P Morlock M M |
| Affiliation: | 1. Department Orthop?die, Unfallchirurgie und Paraplegiologie, Universit?tsklinikum Heidelberg, Schlierbacher Landstr. 200a, 69118, Heidelberg, Deutschland 2. Institut f??r Biomechanik, Technische Universit?t Hamburg-Harburg, Hamburg, Deutschland 3. Klinik und Poliklinik f??r Orthop?die und Unfallchirurgie, Klinikum der Universit?t zu K?ln, K?ln, Deutschland 4. Centrum f??r Muskuloskeletale Chirurgie, Orthop?dische Klinik, Charit??-Universit?tsmedizin Berlin, Berlin, Deutschland |
| Abstract: | Squeaking in total hip arthroplasty (THA) has been observed only in hard-on-hard bearings, such as ceramic-on-ceramic or metal-on-metal. We report the case of a patient with a squeaking THA who had undergone multiple femoral head revisions combined with a composite ceramic cup (polyurethane, ceramic). Squeaking started 6 years postoperatively and acetabular revision was necessary to resolve the issue. Secondary deformation of the inlay resulted in clamping of the femoral head and increased friction. This should be considered when assessing and advising patients with squeaking THA when composite ceramic components are involved. |
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