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Knee replacement in morbidly obese women.
1Department of Orthopedic Surgery, University of Washington, Seattle.
Surgery, Gynecology & Obstetrics
|August 1, 1991
Summary
Total knee replacement in morbidly obese women with osteoarthritis is safe and effective, but outcomes are less favorable than in nonobese individuals. The surgery does not lead to significant weight loss.
Area of Science:
- Orthopedic Surgery
- Obesity Medicine
- Osteoarthritis Management
Background:
- Morbid obesity presents challenges for total knee replacement (TKR) outcomes.
- Understanding TKR efficacy in morbidly obese patients is crucial for surgical decision-making.
Purpose of the Study:
- To compare TKR outcomes in morbidly obese women versus nonobese women.
- To evaluate the impact of TKR on weight loss in obese patients.
Main Methods:
- Retrospective comparison of 66 TKRs in morbidly obese women with 64 TKRs in nonobese women.
- Inclusion of a control group of 50 obese women who did not undergo TKR.
- Follow-up assessments conducted between 24 to 60 months (mean 33 months).
Main Results:
- Excellent or good results achieved in 86% of nonobese patients versus 57% of morbidly obese patients.
- Morbidly obese patients had higher rates of infection (2) and revision (2) compared to nonobese patients (0 infections, 1 revision).
- No significant sustained weight loss was observed in either group of obese patients post-TKR.
Conclusions:
- Total knee replacement is a safe and reasonably effective procedure for morbidly obese women with osteoarthritis.
- Outcomes in morbidly obese patients are inferior to those in nonobese patients.
- TKR should not be considered a facilitator for weight loss in obese individuals.