Related Experiment Video
Updated: Jul 1, 2026
07:33
In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
Published on: May 5, 2023
Measuring tools for functional outcomes in total knee arthroplasty.
1London Health Sciences Centre, University of Western Ontario, University Campus, London, ON, Canada. robert.bourne@lhsc.on.ca
Clinical Orthopaedics and Related Research
|September 10, 2008
Summary
Total knee replacement surgery is a highly effective procedure, offering significant improvements in patient quality of life and demonstrating excellent cost-effectiveness. Most patients report high satisfaction and would undergo the surgery again.
Area of Science:
- Orthopedic Surgery
- Health Economics
- Quality of Life Research
Background:
- Total knee arthroplasty (TKA) is a high-volume, high-cost procedure facing scrutiny amid resource scarcity.
- Assessing intervention efficacy and cost-effectiveness is crucial in modern healthcare.
Purpose of the Study:
- To evaluate the health-related quality-of-life outcomes and cost-effectiveness of total knee arthroplasty.
- To determine if TKA is a favorable medical intervention compared to alternatives.
Main Methods:
- Utilized disease-specific, patient-specific, global health, functional capacity, and cost-to-utility outcome measures.
- Analyzed patient satisfaction rates and WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index) scores pre- and post-operatively.
Main Results:
- Achieved high patient satisfaction (90%) with 93% willing to repeat the procedure.
- Demonstrated significant improvements in WOMAC scores (over 39 points) in 82% of patients.
- Cost-to-utility analyses confirmed TKA as highly cost-effective.
Conclusions:
- Total knee arthroplasty is a highly efficacious surgical intervention.
- TKA demonstrates favorable outcomes and cost-effectiveness, competing well with other medical and surgical options.