title: The Cumulative Risk of Re-dislocation After Revision THA Performed for Instability Increases Close to 35% at 15years.
abstract: A retrospective analysis was conducted on 539 hips undergoing revision total hip arthroplasty done for instability to report the cumulative risk and factors associated with re-dislocation and re-revision. The cumulative risk of re-dislocation and re-revision for all cause was 34.5% and 45.9% at 15 years, respectively. Multiple variable analyses revealed history of 2 or more previous surgeries, use of head size less than 36 mm, and cup retention to be risk factors for re-dislocation and re-revision. The use of a constrained liner was protective against re-dislocation but was not associated with a lower re-revision rate. Understanding the risk factors associated with re-dislocation or re-revision may help with perioperative decision making in order to decrease the high failure rate seen in this study.
authors: Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.
authors: Suenghwan
authors: S
authors: Jo
authors: Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.
authors: Jose H
authors: JH
authors: Jimenez Almonte
authors: Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.
authors: Rafael J
authors: RJ
authors: Sierra
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D006617:Hip Dislocation / Q000209:etiology*; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D007593:Joint Instability / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011475:Prosthesis Failure; D012086:Reoperation / Q000009:adverse effects*; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome
keywords: constrained liner; cumulative Risk; dislocation; instability; large femoral head; revision arthroplasty