title: Ten- to 15-year clinical and radiographic results for a compression molded monoblock elliptical acetabular component.
abstract: The aim of this study was to report the long-term results from a previously published midterm follow-up of a titanium monoblock, elliptical acetabular component. A total of 258 primary total hip arthroplasties (212 patients) with a monoblock, acetabular component were followed up for a mean period of 11.1 years (10-15). Average yearly wear rate was 0.08 mm/y (0.0009-0.32). Acetabular radiolucencies were present in 6 hips (2.4%); all were nonprogressive and present in acetabular zone I. Acetabular osteolysis was present in 5 patients (5 hips, 1.9%); all cups were stable. Four acetabular components were revised, 3 because of recurrent instability. No acetabular components were revised for polyethylene wear or dissociation, acetabular osteolysis, loosening, or deep infection. This monoblock design demonstrates excellent long-term survival and low rate of osteolysis.
authors.affiliation: Division of Adult Reconstruction and Joint Replacement, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA.
authors.forename: Lazaros A
authors.initials: LA
authors.lastname: Poultsides
authors.forename: Vasilis
authors.initials: V
authors.lastname: Sioros
authors.forename: John A
authors.initials: JA
authors.lastname: Anderson
authors.forename: Danilo
authors.initials: D
authors.lastname: Bruni
authors.forename: Burak
authors.initials: B
authors.lastname: Beksac
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Sculco
mesh_terms: D000077:Acetabulum; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000000981:diagnostic imaging / Q000209:etiology; D020959:Polyethylene; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D020959:Polyethylene; D014025:Titanium