Constrained acetabular liners cemented into cages during total hip revision arthroplasty

John I. Khoury, Arthur L. Malkani, Edward M. Adler, David C. Markel

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The combination of acetabular bone loss and hip instability is challenging. Sixteen patients underwent revision total hip arthroplasty using constrained acetabular liners cemented into cages. The average follow-up was 28 months (range, 24-60 months). Clinical evaluation was obtained using the Harris hip score along with radiographic data. At latest follow-up, 13 patients were available for evaluation. Although the average postoperative Harris hip score was 62 points, which was better than the preoperative score of 27 points, the overall radiographic failure rate was 23%. The combination of poor acetabular bone stock and altered stresses from the increased constraint likely led to the poor outcome. We would only recommend use of a cemented, constrained acetabular liner in combination with a protrusio cage as a bail out or salvage procedure.

Original languageEnglish
Pages (from-to)901-905
Number of pages5
JournalJournal of Arthroplasty
Issue number6
StatePublished - Sep 2010
Externally publishedYes


  • Acetabulum
  • Cages
  • Constrained liners
  • Revision total hip arthroplasty


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