title: Acetabular augmentation ring for recurrent dislocation of total hip arthroplasty: 60% stability rate after an average follow-up of 74 months.
abstract: Between 1988 and 2002, 47 patients (50 hips) were treated with acetabular shell augmentation arthroplasty for recurrent idiopathic dislocation of their total hip arthroplasty. Apparent causes for dislocation such as deep infection, component malposition, or polyethylene wear were excluded. Follow-up averaged 74 months (range, 12-178 months), and clinically, 30 hips (60%) did not present a subsequent dislocation at most recent follow-up. In five hips (10%), deep infection after the augmentation procedure necessitated removal of the entire prosthesis. In our opinion, this technique cannot be recommended as it has an unacceptable failure and high infection rate.
authors.affiliation: Department of Orthopedic Surgery, Isala Clinics, De Weezenlanden Hospital, Grootwezenland 20, 8011 JW , Zwolle, The Netherlands.
authors.forename: B H
authors.initials: BH
authors.lastname: Bosker
authors.forename: H B
authors.initials: HB
authors.lastname: Ettema
authors.forename: C C P M
authors.initials: CC
authors.lastname: Verheyen
authors.forename: R M
authors.initials: RM
authors.lastname: Castelein
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D017760:Bone Malalignment / Q000150:complications; D005260:Female; D005500:Follow-Up Studies; D006617:Hip Dislocation / Q000517:prevention & control*; D006622:Hip Prosthesis / Q000706:statistics & numerical data*; D006801:Humans; D007593:Joint Instability / Q000517:prevention & control*; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D020959:Polyethylene / Q000009:adverse effects; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000150:complications; D055502:Secondary Prevention
chemical_list: D020959:Polyethylene