Excellent survival of second-generation uncemented dual mobility cups compared with first-generation cups at a minimum of 10 years follow-up in primary total hip arthroplasty.

IF 1.8 Q2 ORTHOPEDICS SICOT-J Pub Date : 2024-01-01 Epub Date: 2024-08-27 DOI:10.1051/sicotj/2024024
Antoine Duhil, Gérald Delfosse, Elvire Servien, Cécile Batailler, Sébastien Lustig
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Abstract

Introduction: This study aimed to compare the revision rate and long-term survival between two generations of uncemented dual mobility cup (DMC) from the same manufacturer in primary total hip arthroplasty (THA) at a minimum follow-up of 10 years.

Methods: This retrospective monocentric study included all THA performed with an uncemented DMC from the same company. The cohort included 150 patients with 22 first-generation DMC and 128 second-generation DMC. The coating of the second generation was a double-coating Plasma spray of Titanium and Hydroxyapatite (HAP), compared to the coating of alumina and HAP for the first generation. The mean follow-up was 14.2 ± 1.2 years. The mean age was 76.0 ± 10.1 years. The Harris hip score (HHS), complications, and revisions were collected at the last follow-up. Ten- and fifteen-year Kaplan-Meier survival was calculated.

Results: At the last follow-up, the mean HHS was 83.2 ± 9.1. There were two acetabular loosenings with the old coating (9.1%) and one case with the new one (0.78%) (p = 0.056). There was one extra-prosthetic dislocation (0.67%) and one postoperative infection (0.67%). Survival without acetabular revision at 10 and 15 years was 90.9% for the 1st generation and 99.2% for the 2nd generation (p = 0.009).

Conclusion: Survival without acetabular revision was significantly higher at 10 and 15 years of follow-up with the second generation of DMC with plasma-sprayed titanium and HAP coating compared to the first generation of DMC coat. The dislocation was uncommon, thanks to the dual mobility concept. This second generation of uncemented DMC can be safely used in primary THA.

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与第一代非骨水泥双活动度髋臼杯相比,第二代非骨水泥双活动度髋臼杯在初次全髋关节置换术至少 10 年的随访中存活率极高。
简介:本研究旨在比较同一制造商生产的两代非骨水泥双活动度杯(DMC)在初次全髋关节置换术(THA)中至少随访10年的翻修率和长期存活率:这项回顾性单中心研究包括所有使用同一公司生产的非骨水泥双活动度杯进行的全髋关节置换术。研究对象包括 150 名患者,其中第一代 DMC 22 例,第二代 DMC 128 例。与第一代的氧化铝和羟基磷灰石涂层相比,第二代的涂层是钛和羟基磷灰石(HAP)的双涂层等离子喷涂。平均随访时间为 14.2 ± 1.2 年。平均年龄为 76.0 ± 10.1 岁。在最后一次随访时收集了哈里斯髋关节评分(HHS)、并发症和翻修情况。计算了十年和十五年的Kaplan-Meier生存率:最后一次随访时,HHS的平均值为83.2±9.1。旧涂层有两例髋臼松动(9.1%),新涂层有一例髋臼松动(0.78%)(P = 0.056)。有一例假体外脱位(0.67%)和一例术后感染(0.67%)。第一代和第二代假体在10年和15年的存活率分别为90.9%和99.2%(P = 0.009):结论:与第一代DMC涂层相比,采用等离子喷涂钛和HAP涂层的第二代DMC在随访10年和15年后无髋臼翻修的存活率明显更高。由于采用了双重活动度概念,脱位情况并不常见。第二代非骨水泥 DMC 可以安全地用于初级 THA。
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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