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Updated: Mar 28, 2026
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
Is Single-Radius Design Better for Quadriceps Recovery in Total Knee Arthroplasty?
Duk-Hyun Kim1, Dong-Kyoon Kim2, Sang-Hak Lee1
1Department of Orthopaedic Surgery, Center for Joint Diseases and Rheumatism, Kyung Hee University Hospital at Gangdong, Seoul, Korea.
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.
