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Patient outcomes after knee replacement

D A Heck1, R L Robinson, C M Partridge

  • 1Bowen Research Center, Long Hospital, Indianapolis, IN, USA.

Clinical Orthopaedics and Related Research
|January 26, 1999
PubMed
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Knee replacement surgery significantly improves patient function and satisfaction for knee osteoarthritis. Factors like surgeon experience and patient health influence outcomes, with high satisfaction rates observed.

Area of Science:

  • Orthopedics
  • Medical Technology Assessment

Background:

  • Knee osteoarthritis is a prevalent condition requiring effective treatment options.
  • Total knee replacement (TKR) is a common surgical intervention for end-stage knee osteoarthritis.

Purpose of the Study:

  • To evaluate the impact of knee replacement on patients with knee osteoarthritis in a community practice setting.
  • To identify factors influencing patient satisfaction and complication rates following TKR.

Main Methods:

  • Prospective observational cohort study involving 291 patients (330 knees) from 25 institutions.
  • Data collected included demographics, health status, radiographic measures, intraoperative factors, and physical examinations.
  • Minimum 2-year follow-up was achieved in 92% of participants.

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Main Results:

  • 88% of patients reported satisfaction with their knee surgery outcomes at 2-year follow-up.
  • Physical composite scores improved significantly post-surgery.
  • Maximal improvement was associated with higher institutional/surgeon volume, better baseline mental health, specific surgery days, older age, posterior cruciate retaining devices, and worse preoperative function.

Conclusions:

  • Knee replacement demonstrates high effectiveness and patient satisfaction in community practice.
  • Optimizing surgical factors and patient selection can enhance outcomes and minimize complications.