Mid-term clinical outcomes of the uncemented Robert Mathys pressfit cup  

作　　者：Kishan Ritek Ramsodit Inger N Sierevelt Esther R C Janssen Sjoerd Kaarsemaker Daniël Haverkamp 

机构地区：[1]Department of Orthopedic Surgery,Xpert Clinics Amsterdam,Amsterdam 1101EA,North-Holland,Netherlands [2]Department of Orthopedic,Spaarne Gasthuis Academy,Hoofddorp 2134 TM,Netherlands [3]Department of Orthopaedic Surgery,Viecuri Medical Centre,Venlo 5912 BL,Netherlands [4]Department of Orthopaedic Surgery,Viecuri Medisch Centrum,Venlo 5912 BL,Netherlands

出　　处：《World Journal of Clinical Cases》2024年第19期3684-3691,共8页世界临床病例杂志

摘　　要：BACKGROUND The use of uncemented cups during total hip arthroplasty(THA)has gained popularity in recent years.The Robert Mathys(RM)pressfit cup,an uncemented monoblock implant is expected to preserve bone density due to its composition and external surface,while reducing backside wear with its monoblock construction.These factors should lead to a high survival rate of the implant.AIM To evaluate the mid-term survival and functional outcome of the RM Pressfit cup in a large study population.METHODS Between 2011 and 2020,we included 1324 patients receiving a primary THA using the RM pressfit cup.Final clinical follow-up was performed at 2 years postoperatively with the Dutch arthroplasty register used to assess implant status thereafter.Revision for acetabular failure and reason for revision were reported to evaluate implant survival,while the hip disability and osteoarthritis outcome score(HOOS)scores were used to assess functional outcome.RESULTS The mean age at surgery was 64.9 years.The mean follow-up was 4.6 years.Of the 1324 THAs performed,13 needed cup revisions within 5 years after index THA:5 due to aseptic loosening,6 due to infection,2 due to dislocation and 2 due to other causes.This resulted in a 5-year cup survival of 98.8%(95%CI:98.1-99.5).Nine of the cup revisions occurred within the first year after index THA.HOOS scores increased significantly in all domains during the first year and levelled out during the second year.CONCLUSION In the present study,the RM pressfit cup demonstrated excellent clinical outcomes at mid-term follow-up;however,future studies are needed to assess the long-term outcomes of this acetabular implant.

关 键 词：Total hip arthroplasty Uncemented RM pressfit cup Hip osteoarthritis Cup revision Pressfit Aseptic loosening 

分 类 号：R735.7[医药卫生—肿瘤]