Berry D J, Wold L E, Rand J A
Department of Orthopedics, Mayo Clinic, Rochester, Minnesota 55905.
Clin Orthop Relat Res. 1993 Aug(293):204-7.
Extensive osteolysis occurred around an aseptic, well-fixed, stable, uncemented total knee prosthesis. At the time of revision, tibial polyethylene wear and minimal metal-on-metal contact were present. A hypertrophic synovium-like membrane abutted bone in regions of osteolysis. Examination of this membrane revealed polyethylene-wear debris and significant levels of chromium, cobalt, and titanium. Wear debris--polyethylene, metal, or a combination of both--may be responsible for the osteolytic process in this case.
在一个无菌、固定良好、稳定且未骨水泥固定的全膝关节假体周围发生了广泛的骨质溶解。翻修时，发现胫骨聚乙烯磨损以及极少的金属对金属接触。在骨质溶解区域，一层肥厚的类似滑膜的组织紧贴着骨头。对该组织的检查发现了聚乙烯磨损碎片以及大量的铬、钴和钛。磨损碎片——聚乙烯、金属或两者的组合——可能是导致该病例骨质溶解过程的原因。
