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KMID : 0359620150270040240
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Journal of Korean Knee Society
2015 Volume.27 No. 4 p.240 ~ p.246
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Is Single-Radius Design Better for Quadriceps Recovery in Total Knee Arthroplasty?
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Kim Duk-Hyun
Kim Dong-Kyoon
Lee Sang-Hak
Kim Kang-Il
Bae Dae-Kyung
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Abstract
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Purpose: Although single-radius (SR) designs have a theoretical advantage in quadriceps recovery following total knee arthroplasty (TKA), there has been a paucity of objective evaluation studies.
Materials and Methods: One hundred and twenty minimally invasive TKAs were prospectively randomized by a single surgeon into 2 groups: SR design TKA group and multi-radius design TKA group. Quadriceps force and power were assessed using a dynamometer, and clinical data were investigated preoperatively and 6 weeks, 3 months, 6 months and 1 year postoperatively.
Results: There were no differences between two groups in quadriceps recovery and clinical results throughout the follow-up period. Furthermore, the proportion of patients whose postoperative quadriceps force and power reached preoperative level was similar in both groups.
Conclusions: Femoral component design itself would not significantly influence quadriceps recovery after TKA.
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KEYWORD
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Knee, Arthroplasty, Prosthesis design, Quadriceps muscle, Muscle strength dynamome
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