Ten- to 15-Year Clinical and Radiographic Results for a Compression Molded Monoblock Elliptical Acetabular Component

Lazaros A. Poultsides, Vasilis Sioros, John A. Anderson, Danilo Bruni, Burak Beksac, Thomas P. Sculco

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)1850-1856
Number of pages7
JournalJournal of Arthroplasty
Volume27
Issue number10
DOIs
Publication statusPublished - Dec 2012

Keywords

  • Acetabular cup
  • Backside wear
  • Monoblock
  • Osteolysis
  • Polyethylene wear

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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