Rajpura A, Board T N, Siney P D, Wynn Jones H, Williams S, Dabbs L, Wroblewski B M
Wrightington Hospital, Hall Lane, Appley Bridge, Wigan WN6 9EP, UK.
University of Leeds, Woodhouse Ln, Leeds LS2 9JT, UK.
Bone Joint J. 2017 Oct;99-B(10):1286-1289. doi: 10.1302/0301-620X.99B10.BJJ-2017-0105.R1.
Our aim in this study was to describe a continuing review of 11 total hip arthroplasties using 22.225 mm Alumina ceramic femoral heads on a Charnley flanged femoral component, articulating against a silane crosslinked polyethylene.
Nine patients (11 THAs) were reviewed at a mean of 27.5 years (26 to 28) post-operatively. Outcome was assessed using the d'Aubigne and Postel, and Charnley scores and penetration was recorded on radiographs. In addition, the oxidation of a 29-year-old shelf-aged acetabular component was analysed.
The mean clinical outcome scores remained excellent at final follow-up. The mean total penetration remained 0.41 mm (0.40 to 0.41). There was no radiographic evidence of acetabular or femoral loosening or osteolysis. There was negligible oxidation in the shelf-aged sample despite gamma irradiation and storage in air.
These results highlight the long-term stability and durability of this type of crosslinked, antioxidant containing polyethylene when used in combination with a small diameter alumina ceramic femoral head. Cite this article: 2017;99-B:1286-9.
本研究的目的是描述对11例全髋关节置换术的持续评估，这些手术使用22.225毫米氧化铝陶瓷股骨头，安装在Charnley带凸缘股骨组件上，与硅烷交联聚乙烯对合。
对9例患者（11次全髋关节置换术）进行了术后平均27.5年（26至28年）的随访。使用达布尼和波斯泰尔评分以及Charnley评分评估结果，并在X线片上记录磨损情况。此外，对一个使用了29年的髋臼组件的氧化情况进行了分析。
末次随访时平均临床结果评分仍为优秀。平均总磨损量仍为0.41毫米（0.40至0.41）。X线片上没有髋臼或股骨松动或骨溶解的证据。尽管经过伽马射线照射并在空气中储存，老化样本中的氧化情况可忽略不计。
这些结果突出了这种交联的、含抗氧化剂的聚乙烯与小直径氧化铝陶瓷股骨头联合使用时的长期稳定性和耐久性。引用本文：2017;99-B:1286-9。
