In Vitro Cyclic Testing of the Exeter Stem After Cement Within Cement Revision
| Autor: | Cameron G. Bell, Ross Crawford, Patrick C. Weinrauch, Lance J. Wilson |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Reoperation
musculoskeletal diseases 090302 Biomechanical Engineering medicine.medical_specialty Arthroplasty Replacement Hip medicine.medical_treatment Dentistry Prosthesis Design Cement mantle Materials Testing Medicine Orthopedics and Sports Medicine Cementation 110300 CLINICAL SCIENCES Cement Revision arthroplasty business.industry Bone Cements technology industry and agriculture equipment and supplies Arthroplasty Biomechanical Phenomena Surgery surgical procedures operative Hip Revision Arthroplasty Polymethylmethacrylate Cement Hip Prosthesis business 110314 Orthopaedics |
| Zdroj: | The Journal of Arthroplasty |
| ISSN: | 0883-5403 |
| DOI: | 10.1016/j.arth.2008.02.014 |
| Popis: | Cement-within-cement (C-C) revision arthroplasty minimizes the complications associated with removal of secure polymethylmethacrylate. Failure at the interfacial region between new and old cement mantles remains a theoretical concern. This article assesses the cyclic fatigue properties of bilaminar cement mantles after C-C revision in vitro with the Exeter stem. Seven Exeter stems were cemented into Sawbone femurs and removed, and new undersized stems were cemented into the preserved mantle. The new constructs were loaded for 1 000 000 cycles at body temperature. Cement mantles were inspected postcycling. In no case was there delamination or failure of the cement mantle. The findings support the hypothesis that use of a thin revision cement mantle in conjunction with a polished double-tapered stem is not detrimental to the overall success of the implant. In the presence of a secure cement-bone interface in suitable patients, we recommend C-C revision techniques using double-tapered polished femoral stems. |
| Databáze: | OpenAIRE |
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