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[Patella reshaping versus resurfacing in total knee arthroplasty: a prospective randomized study].
Zhong-tang Liu1, Yu-li Wu, Xiao-hua Li
1Department of Orthopedics, Changzheng Hospital, the Second Military Medical University, Shanghai 200003, China.
Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]
|November 17, 2007
Summary
Total knee arthroplasty outcomes were similar whether the patella was reshaped or resurfaced. Both surgical techniques effectively relieved pain and improved function, with no significant difference in patient satisfaction or anterior knee pain prevalence.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
Background:
- Total knee arthroplasty (TKA) is a common procedure for osteoarthritis.
- Patellar management during TKA, specifically reshaping versus resurfacing, is a subject of ongoing clinical debate.
- Optimizing clinical outcomes and patient satisfaction in TKA requires careful consideration of patellar treatment.
Purpose of the Study:
- To compare the clinical outcomes of total knee arthroplasty (TKA) based on whether the patella was reshaped or resurfaced.
- To evaluate differences in pain, function, range of motion, and patient satisfaction between the two patellar management techniques.
Main Methods:
- A prospective, randomized study involving 60 patients undergoing primary TKA for osteoarthritis.
- Patients were randomized to either patellar reshaping or patellar resurfacing.
- Follow-up included the Knee Society Score, range of motion, patient satisfaction, and radiographic assessment over a mean of 54 months.
Main Results:
- No significant differences were observed between patellar reshaping and resurfacing in overall Knee Society Score, pain subscore, or patient satisfaction.
- The prevalence of anterior knee pain was similar (10%) in both groups, indicating no statistically significant difference.
- A statistical difference was noted between the two groups regarding the total function score and range of motion.
Conclusions:
- Both patellar reshaping and resurfacing in total knee arthroplasty significantly relieve pain and enhance function.
- Postoperative anterior knee pain appears to be more closely associated with prosthetic component design or surgical technique details than with the choice between patellar resurfacing or reshaping.