title: Isolated acetabular revision through the posterior approach: short-term results after revision of a recalled acetabular component.
abstract: Isolated acetabular revision is commonly associated with high rates of postoperative dislocation. We hypothesize that the dislocation rate in a series of isolated acetabular revisions for loosening of recalled acetabular components is low when strict intraoperative stability testing is coupled with re-repair of the piriformis tendon. Twenty-six isolated revisions of aseptic, loose recalled acetabular components were performed through the posterior approach by a single surgeon. All piriformis tendon and posterior capsular repairs from the index operation were considered intact at the time of revision. The piriformis tendon was re-repaired in each revision case. The average revision acetabular component was 3 mm larger than the index component. In this select group of isolated acetabular revisions, strict intraoperative stability testing and re-repair of the piriformis tendon yielded zero dislocations.
authors.affiliation: Section of Orthopaedic Surgery, University of Chicago Medical Center, Chicago, Illinois, USA.
authors.forename: David W
authors.initials: DW
authors.lastname: Manning
authors.forename: Brent A
authors.initials: BA
authors.lastname: Ponce
authors.forename: Peter P
authors.initials: PP
authors.lastname: Chiang
authors.forename: William H
authors.initials: WH
authors.lastname: Harris
authors.forename: Dennis W
authors.initials: DW
authors.lastname: Burke
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D006617:Hip Dislocation / Q000209:etiology / Q000517:prevention & control; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D019637:Orthopedic Procedures / Q000379:methods; D011475:Prosthesis Failure; D012086:Reoperation