In: BMC musculoskeletal disorders, 16 (2015), Nr. 249. S. 1-7. ISSN 1471-2474
Vorschau |
PDF, Englisch
Download (660kB) | Lizenz: Creative Commons Namensnennung 3.0 Deutschland |
Abstract
Background: The optimal type of bearing for hip arthroplasty remains a matter of debate. Ceramic-on-polyethylene (CoP) bearings are frequently used in younger and more active patients to reduce wear and increase biocompatibility compared to Metal-on-Polyethylene (MoP) bearings. However, in comparison to metal heads, the fracture risk of ceramic heads is higher. In addition, ceramic head fractures pose a serious complication which often necessitates major revision surgery. To date, there are no long-term data (>20 years of follow-up) reporting fracture rates of the ceramic femoral heads in CoP bearings. The purpose of this research was to investigate long-term CoP fracture rate. Methods: We evaluated the clinical and radiographic results of 348 cementless THAs treated with 2nd generation Biolox® Al2O3 Ceramic-on-Polyethylene (CoP) bearings consecutively implanted between January 1985 and December 1989. The mean age at implantation was 57 years. The patients were followed for a minimum of 20 years. At the final 111 had died, and 5 were lost to follow-up. The cumulative incidence of ceramic head fractures in the long-term was estimated using a competing risk analysis. Results: The cumulative incidence of ceramic head fracture after 22-years was estimated with a competing risk analysis at 0.29% after 22-years (SE = 2.09%; 95% - CI: 0.03-1.5%). The radiographic analysis revealed no impending failures at final follow-up. Discussion/Conclusion: The fracture rate of second-generation ceramic heads using a CoP articulation remains very low into the third decade after cementless THA.
Dokumententyp: | Artikel |
---|---|
Titel der Zeitschrift: | BMC musculoskeletal disorders |
Band: | 16 |
Nummer: | 249 |
Verlag: | BioMed Central |
Ort der Veröffentlichung: | London |
Erstellungsdatum: | 12 Jan. 2016 13:55 |
Erscheinungsjahr: | 2015 |
ISSN: | 1471-2474 |
Seitenbereich: | S. 1-7 |
Institute/Einrichtungen: | Medizinische Fakultät Heidelberg und Uniklinikum > Orthopädische Klinik
Medizinische Fakultät Heidelberg und Uniklinikum > Institut für Medizinische Biometrie |
DDC-Sachgruppe: | 610 Medizin |