Mid-Term Review of ADEPT Metal-On-Metal Hip Prosthesis. Functional, Radiological and Metal Ion Analysis

• 作者: Ben J. Burston Gareth H. Prosser James G. A. Plant Piers J. Yates Stephen J. Edmondston
• 来源期刊: 矫形学期刊(英文)
• 学科: 医学
• 关键词: METAL-ON-METAL ARTHROPLASTY Modular RESURFACING ADEPT Chromium IONS Cobalt IONS FUNCTIONAL Review
• 年，卷（期）: 2014,（2）
• 页码范围: 38-43
• 页数: 6页
• 分类号: R73

摘要

Background: There is much interest regarding metal-on-metal implants in medical and general media. Much of this has been regarding failure of specific implant systems and metal ion toxicity. We present our early mid-term experience of the ADEPT metal-on-metal system which has both modular and non-modular hip options. Methods: Functional assessment, blood metal ion quantification, and radiographic analysis were performed for the modular and non-modular ADEPT variants. Fifty implants were implanted with a mean follow up time of 28 months. Unpaired t-tests were used to compare modular and resurfacing groups, standardised hip scores were used to compare function to conventional total hip arthroplasty. Results: Metal ion levels were significantly higher in modular prostheses compared to resurfacing implants, but not at “harmful” levels (as determined by a previous metal-on-metal implant recall). Functional outcomes were excellent and revision rates were lower than expected. Conclusions: At our institution we have good outcomes with the ADEPT hip prosthesis. Though patient selection and implant position are crucial, poor performance of metal-on-metal hip replacements is implant specific.