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Related Experiment Videos

Total hip arthroplasty for osteonecrosis.

I H Kirschenbaum1, J V Vernace, R E Booth

  • 1Rothman Institute, Pennsylvania Hospital, Philadelphia.

Seminars in Arthroplasty
|June 8, 1991
PubMed
Summary

Charnley cemented total hip arthroplasty offers a viable solution for painful osteonecrosis of the femoral head. Survival analysis indicates good long-term outcomes, with revision as a key endpoint showing high success rates.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Clinical Outcomes Research

Background:

  • Osteonecrosis of the femoral head (ONFH) often leads to debilitating hip pain and functional impairment.
  • Total hip arthroplasty (THA) is a common treatment for advanced ONFH, aiming to restore function and alleviate pain.
  • Cemented THA, specifically the Charnley technique, has been a long-standing option, but its long-term efficacy for ONFH requires ongoing evaluation.

Purpose of the Study:

  • To assess the long-term success and survival rates of Charnley cemented total hip arthroplasty (THA) in patients with osteonecrosis of the femoral head (ONFH).
  • To identify factors influencing the outcomes of cemented THA for ONFH.
  • To evaluate the overall revision rate and patient-reported outcomes using Charnley hip scores.

Main Methods:

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  • A retrospective survival analysis was conducted on 87 patients who underwent Charnley cemented THA for ONFH.
  • Follow-up averaged 5.7 years (range, 1.4-13.0 years).
  • Endpoints for survival analysis included femoral loosening, revision surgery, and pain scores (<5). Patient demographics (age, weight, sex) were analyzed against revision rates.

Main Results:

  • All patients demonstrated significant improvement in Charnley hip scores.
  • Survival rates at the study endpoint were 0.61 for femoral loosening, 0.94 for revision, and 0.81 for pain scores <5.
  • The overall revision rate was 11.5%. No significant differences in revision rates were observed based on age (<50 vs. ≥50), weight (<185 vs. ≥185 lb), or sex.

Conclusions:

  • Charnley cemented total hip arthroplasty is a successful and viable treatment option for patients suffering from painful osteonecrosis of the femoral head.
  • The procedure demonstrates favorable survival rates, particularly when considering revision as the primary endpoint.
  • Patient-specific factors like age, weight, and sex did not significantly impact the need for revision surgery in this cohort.