Department of Orthopaedic Surgery, University of California at Davis Medical Center, Sacramento, California 95817, USA.
J Arthroplasty. 2011 Sep;26(6 Suppl):72-7. doi: 10.1016/j.arth.2011.04.032. Epub 2011 Jun 15.
The results of a prospective multicenter trial comparing 357 hips randomized to total hip arthroplasty with either ceramic-ceramic or ceramic-polyethylene couplings are presented. No statistically significant difference in clinical outcomes scores between the ceramic-ceramic and ceramic-polyethylene groups was observed at any time interval. The mean linear rate was statistically lower (P < .001) in the ceramic-ceramic group (30.5 μm/year) when compared with the ceramic-polyethylene group (218.2 μm/year). The rates of ceramic implant fracture (2.6%) and audible component-related noise (3.1%) were statistically higher in the ceramic-ceramic group when compared with the ceramic-polyethylene group (P < .05). Lastly, there was no statistically significant difference in the dislocation or revision rate between the groups at the time of last clinical follow-up.
呈现了一项前瞻性多中心试验的结果，该试验比较了随机分为全髋关节置换术的 357 髋，使用陶瓷-陶瓷或陶瓷-聚乙烯连接。在任何时间间隔，陶瓷-陶瓷组和陶瓷-聚乙烯组的临床结果评分均无统计学显著差异。与陶瓷-聚乙烯组（218.2μm/年）相比，陶瓷-陶瓷组的平均线性速率（P<.001）统计学上较低（30.5μm/年）。与陶瓷-聚乙烯组相比（P<.05），陶瓷-陶瓷组的陶瓷植入物骨折（2.6%）和可听部件相关噪声（3.1%）的发生率统计学上更高。最后，在最后一次临床随访时，两组间脱位或翻修率无统计学显著差异。
