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Related Experiment Videos

Total hip replacement after intertrochanteric osteotomy.

S Suominen1, I Antti-Poika, S Santavirta

  • 1Orthopedic Hospital of the Invalid Foundation, Helsinki, Finland.

Orthopedics
|March 1, 1991
PubMed
Summary

Previous intertrochanteric osteotomies can complicate total hip replacements (THR), potentially impairing outcomes. Narrowing of the medullary canal was noted in some cases, affecting prosthesis insertion and long-term results.

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Intertrochanteric osteotomy is a surgical procedure used to correct hip deformities.
  • Total hip replacement (THR) is a common treatment for severe hip arthritis.

Purpose of the Study:

  • To evaluate the long-term outcomes of total hip replacement (THR) in patients with a history of intertrochanteric osteotomy.
  • To identify potential complications and factors affecting THR success after prior osteotomy.

Main Methods:

  • Analysis of 45 hips in 42 patients who underwent THR after intertrochanteric osteotomy.
  • Assessment of patient demographics, interval between surgeries, and intraoperative findings.
  • Evaluation of postoperative outcomes using the Mayo score and failure rate.

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Main Results:

  • A mean of 11.9 years elapsed between osteotomy and THR.
  • Medullary canal narrowing complicated prosthesis stem insertion in 10 cases.
  • The mean Mayo score at 6-year follow-up was 81, with a 6.7% failure rate. Overweight patients showed poorer outcomes.

Conclusions:

  • Prior intertrochanteric osteotomy may negatively impact the results of subsequent total hip replacement.
  • Medullary canal narrowing is a potential complication that can hinder prosthesis implantation.
  • Weight management is important for optimizing outcomes after THR in this patient cohort.