Clinical and radiographic analysis of the uncemented lsf total hip arthroplasty

Robert L. Barrack, Randi D. Lebar

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Forty-nine consecutive uncemented porous-coated LSF total hip prostheses were implanted in 41 patients and studied prospectively. Clinical rating as described by Harris was performed preoperatively, at 6 months and 1 year postoperatively, and annually thereafter. Anteroposterior and lateral radiographs were obtained preoperatively, immediately postoperatively, at 6 and 12 months, and annually thereafter. At the most recent follow-up visit, patients were evaluated clinically and radiographically utilizing the format recently recommended by the Hip Society. A patient satisfaction questionnaire was also completed. The follow-up period averaged 37 months (range, 24–48 months). Preoperative hip scores averaged 38 (range, 18–68) and improved to 93 at the most recent follow-up visit (range, 76–100). The incidence of mild pain was 14% at 1 year and 4% at 2 years or more. The incidence of limp was 16% slight and 8% moderate at 1 year, and 12% slight and 2% moderate at 2 years or more. Surgical fit was objectively graded as excellent in 61%, good in 33%, and poor in 6%. The authors were unable to correlate surgical fit with clinical scores or radiographic findings. According to radiographic criteria, all components were judged to be stable and 86% were judged to demonstrate objective signs of osseointegration. Patient satisfaction with the procedure was 100%. All patients stated that the procedure increased their function and decreased their pain and need for medication. Compared to a normal hip, in terms of symptoms and function, the patients rated their postoperative hip at 85% (range, 50–100%). Compared to their level of activity before their hip was symptomatic, they rated their current activity level as 83% (range, 50–100%).

Original languageEnglish
Pages (from-to)353-363
Number of pages11
JournalJournal of Arthroplasty
Volume7
DOIs
StatePublished - Jan 1 1992

Keywords

  • LSF total hip arthroplasty
  • uncemented hip arthroplasty

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