Ranawat Orthopaedic Center, Lenox Hill Hospital, New York, New York 10021, USA.
J Arthroplasty. 2010 Apr;25(3):342-7. doi: 10.1016/j.arth.2009.01.014.
The results of revision total hip arthroplasty (THA) for ceramic head fracture have generally been disappointing, largely due to third body wear after incomplete synovectomy. We have followed 8 patients who sustained ceramic head fractures and were subsequently revised to a metal-on-polyethylene articulation. There were no revisions for osteolysis or aseptic loosening at a mean follow-up of 10.5 years. The yearly wear rates of each of 5 of these THAs after revision were compared with 6 matched metal-on-polyethylene THAs; there were no significant differences in wear rates. Greater than 10-year survivorship with a metal-on-polyethylene bearing couple is possible after revision THA for a ceramic head fracture if a complete and thorough synovectomy can be performed. Our technique of synovectomy will be described.
陶瓷股骨头骨折翻修全髋关节置换术(THA)的结果通常令人失望,主要是由于不完全滑膜切除术后的第三体磨损。我们随访了 8 例陶瓷股骨头骨折患者,随后翻修为金属对聚乙烯关节。平均随访 10.5 年后,无骨溶解或无菌性松动的翻修。对其中 5 例 THA 的每年磨损率与 6 例匹配的金属对聚乙烯 THA 进行了比较;磨损率没有显著差异。如果能进行彻底的滑膜切除,陶瓷股骨头骨折翻修 THA 后,使用金属对聚乙烯关节可以获得超过 10 年的生存率。我们将描述滑膜切除术的技术。