Survivorship Between 2 Different Ceramic-on-Ceramic Total Hip Arthroplasty With or Without a Metal-Backed Titanium Sleeve Bearing: A 5- to 14-Year Follow-Up Study
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- 作者：Yoshitoshi Higuchi ; MDa ; ; Yukiharu Hasegawa ; MD ; PhDb ; Daigo Komatsu ; MDa ; Taisuke Seki ; MD ; PhDa ; Naoki Ishiguro ; MD ; PhDa
- 关键词：ceramic-on-ceramic bearings ; total hip arthroplasty ; wear ; long-term follow-up ; metal-backed titanium sleeve
- 刊名：The Journal of Arthroplasty
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：32
- 期：1
- 页码：155-160
- 全文大小：597 K
- 卷排序：32
文摘
The aim of the study was to compare the clinical and radiographic results of consecutive ceramic-on-ceramic bearings with and without a metal-backed titanium sleeve in patients undergoing total hip arthroplasty.MethodsEighty-five patients (64 women and 21 men; average age 55.2 years) were included in the A group without sleeve while 147 patients (116 women and 31 men; average age 54.2 years) were included in the B group with sleeve. Clinical and radiologic measurements at follow-up (range, 5-14 years; average, 8.1 years) were analyzed.ResultsThe mean latest postoperative Harris Hip Score was 89.1 for patients from both groups. One joint (1.2%) in the A group displayed ceramic liner fracture, while no incidences of liner fracture occurred in the B group. Audible squeaking was observed in 1 joint (1.2%) in the A group and 1 (0.7%) in the B group. The mean annual liner rate of wear was 0.0049 and 0.0046 mm/y for the A group and B group, respectively. Three joints in the A group (3.5%) required revision total hip arthroplasty because of individual episodes of aseptic cup loosening, ceramic liner fracture, and infection. One joint in the B group (0.7%) required revision because of progressive osteolysis of the proximal femur. Ten-year Kaplan–Meier survivorship, based on an end point of component loosening and bearing failure, was 97.6% for the A group and 99.3% for the B group.ConclusionThere were no clinical, radiographic, or survivorship differences between groups.