title: Revision with cementless acetabular components: a concise follow-up, at a minimum of twenty years, of previous reports.
abstract: The purpose of the present study was to analyze the longer-term results for a previously reported cohort of patients who were managed with cementless acetabular fixation at the time of revision arthroplasty. Sixty-one consecutive revision total hip arthroplasties were performed in fifty-five patients with use of a cementless acetabular component and screw-augmented fixation. This series was evaluated at minimum of twenty years. Twelve patients (fourteen hips) were living at twenty years. In this group of sixty-one arthroplasties, there were nineteen revisions in fourteen hips (22.9%) during the follow-up period, but no revisions were performed because of loosening of the acetabular component and no additional cups had loosened since the time of the last report at a minimum of ten years. Two components had previously been reported as loose and had migrated, but neither had been revised at the time of the latest follow-up. The minimum twenty-year follow-up of these cementless acetabular components demonstrated durable long-term fixation. The survival rate was 100% with revision of the shell because of aseptic loosening as the end point and 97.7% (95% confidence interval, ± 8.8%) with radiographic evidence of loosening as the end point. The authors continue to use cementless acetabular fixation with screw augmentation for most revision total hip arthroplasty procedures.
  
  
  METHODS
  Therapeutic Level IV.
authors.affiliation: Department of Orthopaedics, University of Iowa Health Care, Iowa City, IA, USA.
authors.forename: Bryan N
authors.initials: BN
authors.lastname: Trumm
authors.forename: John J
authors.initials: JJ
authors.lastname: Callaghan
authors.forename: Steve S
authors.initials: SS
authors.lastname: Liu
authors.forename: Devon D
authors.initials: DD
authors.lastname: Goetz
authors.forename: Richard C
authors.initials: RC
authors.lastname: Johnston
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D001843:Bone Cements; D001863:Bone Screws; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D012086:Reoperation; D012189:Retrospective Studies
chemical_list: D001843:Bone Cements