No dislocation and low complication rate for a modern dual mobility cup with pre-impacted femoral head in primary hip replacement: A consecutive series of 175 hips at minimum 5-year follow-up.

IF 1.8 Q2 ORTHOPEDICS SICOT-J Pub Date : 2023-01-01 DOI:10.1051/sicotj/2022050
Constant Foissey, Cécile Batailler, Vishal Rajput, Aditya B J Premkumar, Elvire Servien, Sébastien Lustig
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引用次数: 1

Abstract

Introduction: Despite its excellent results in preventing dislocation, the dual mobility cup (DMC) is still struggling to be adopted by some teams due to premature wear and loosening reported on first-generation implants. Therefore, this study aimed to assess the mid-term survivorship of a modern DMC with a pre-impacted head and the radio-clinical results at a minimum follow-up of 5 years.

Methods: This was a retrospective single-centre study performed on patients who had a primary total hip replacement for osteoarthritis in 2016. The cup was a third-generation DMC with a pre-impacted femoral head. Clinical (harris hip score (HHS)) and radiological (cup abduction, anteversion, overhang, and radiolucent lines) results were recorded, as well as complications, particularly dislocations and survivorship. A minimum of five years of follow-ups was required.

Results: One hundred and seventy-five hips (167 patients) met the inclusion criteria. Five hips (2.9%, 5/175) were lost to follow-up and excluded from the postoperative analysis. The mean follow-up period was 70 ± 2.9 months [63.6-76.5]. Three cups needed revision surgery (1.8%, 3/170): one for septic loosening, and two for chronic infection. At 77 months, the global survival probability was 98.2% ± 1, and the survival probability excluding septic aetiology was 100%. There was a significant improvement in the HHS from pre-operatively (48.3 ± 6.0 [14.0-70.0]) to post-operatively (96 ± 4.5 [50-100]) (p < 0.0001). There were no postoperative dislocations recorded, nor any iliopsoas-impingement or symptomatic cam-effect.

Discussion: This study showed excellent survival and good radiological and clinical results of this dual mobility cup at a mid-term follow-up. None of the patients had dislocation or any specific complication feared with dual mobility cups.

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现代双活动杯预撞击股骨头在初次髋关节置换术中无脱位,并发症发生率低:连续随访175髋至少5年。
尽管双活动杯(DMC)在预防脱位方面具有优异的效果,但由于第一代种植体的过早磨损和松动,一些团队仍然在努力采用它。因此,本研究旨在评估现代DMC伴有头部预撞击的中期生存率以及至少5年随访的放射-临床结果。方法:这是一项回顾性的单中心研究,研究对象是2016年因骨关节炎行原发性全髋关节置换术的患者。该杯为第三代DMC,股骨头预嵌固。记录临床(harris髋关节评分(HHS))和影像学(髋杯外展、前翻、悬垂和放射线)结果,以及并发症,特别是脱位和生存率。至少需要5年的随访。结果:175髋(167例)符合纳入标准。5髋(2.9%,5/175)失访,排除在术后分析之外。平均随访时间70±2.9个月[63.6 ~ 76.5]。3个杯子需要翻修手术(1.8%,3/170):1个脓毒性松动,2个慢性感染。77个月时,总体生存率为98.2%±1,排除脓毒症病因的生存率为100%。HHS从术前(48.3±6.0[14.0-70.0])到术后(96±4.5[50-100])显著改善(p)。讨论:本研究在中期随访中显示该双活动杯具有良好的生存率和良好的放射学和临床结果。没有患者有脱位或任何特殊并发症担心双活动杯。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
SICOT-J
SICOT-J ORTHOPEDICS-
CiteScore
3.20
自引率
12.50%
发文量
44
审稿时长
14 weeks
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