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Patellar resurfacing in total knee arthroplasty. A meta-analysis
Emilios E Pakos1, Evangelia E Ntzani, Thomas A Trikalinos
1Clinical Trials and Evidence-Based Medicine Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, University Campus, 45110 Ioannina, Greece. me00911@cc.uoi.gr
Summary
Patellar resurfacing in total knee arthroplasty reduces reoperation and anterior knee pain risks. While effects are modest, they are clinically significant, warranting further research into this surgical technique.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- The role of patellar resurfacing during total knee arthroplasty (TKA) is debated.
- Evaluating the effectiveness of patellar resurfacing is crucial for optimizing TKA outcomes.
Purpose of the Study:
- To systematically evaluate the current literature on patellar resurfacing in TKA.
- To determine the impact of patellar resurfacing on reoperation rates, anterior knee pain, and functional knee scores.
Main Methods:
- A meta-analysis of randomized controlled trials (RCTs) was conducted.
- Studies compared TKA with and without patellar resurfacing.
- Key outcomes included reoperations, postoperative anterior knee pain, and knee scores.
Main Results:
- Ten trials involving 1223 knees were analyzed.
- Patellar resurfacing significantly reduced the absolute risk of reoperation by 4.6% and anterior knee pain by 13.8%.
- No significant difference was found in the mean improvement of knee scores between the groups.
Conclusions:
- Patellar resurfacing in TKA demonstrably lowers risks of reoperation and anterior knee pain.
- These benefits, though modest, hold clinical importance.
- Further high-quality RCTs are needed to solidify these findings.