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Selective patellar resurfacing in total knee arthroplasty: a prospective, randomized, double-blind study
Donald W Roberts1, T David Hayes1, Christine T Tate2
1Northwest Surgical Research Foundation, Vancouver, Washington.
The Journal of Arthroplasty
|October 16, 2014
Summary
Selective patellar resurfacing in total knee arthroplasty shows slightly higher patient satisfaction. Long-term outcomes and survivorship remain similar, with no identified complications.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Total knee arthroplasty (TKA) is a common procedure for knee osteoarthritis.
- Patellar resurfacing is a debated surgical option in TKA.
- Evaluating long-term outcomes of patellar resurfacing is crucial for clinical decision-making.
Purpose of the Study:
- To compare outcomes of primary total knee arthroplasty with and without selective patellar resurfacing.
- To assess patient satisfaction, Knee Society Score (KSS), and survivorship.
- To identify any complications associated with patellar resurfacing.
Main Methods:
- Prospective, randomized, double-blinded study.
- 350 knees evaluated, with 327 analyzed at a mean 7.8-year follow-up.
- Subgroup analysis of 114 knees followed for over 10 years.
Main Results:
- Higher patient satisfaction reported in the patellar resurfacing group.
- No significant differences in KSS scores or survivorship between groups at long-term follow-up (>10 years).
- No complications directly attributed to patellar resurfacing were observed.
Conclusions:
- Most patients with remaining patellar articular cartilage achieve good outcomes in TKA, irrespective of resurfacing.
- Patellar resurfacing may offer a slight improvement in patient satisfaction.
- The procedure appears safe with no significant long-term adverse effects.
