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KMID : 1237720100430030252
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Anatomy & Cell Biology
2010 Volume.43 No. 3 p.252 ~ p.259
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Resected femoral anthropometry for design of the femoral component of the total knee prosthesis in a Korean population
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Kwak Dai-Soon
Han Suh-Youn
Han Chang-Whan
Han Seung-Ho
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Abstract
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We measured the mediolateral (ML) and anteroposterior (AP) length, height and widths of the anterior, posterior and inferior section of the resected distal femurs using three dimensional computer tomographic measurements in 200 knees from 100 cadavers. We also calculated the aspect ratio (ML/AP) and compared the measured parameters with that of six conventionally used total knee femoral prostheses. We found that the average ML (70.2±5.5 mm) and AP (53.9±3.8 mm) dimensions from our study were lower than those reported from Western populations. The aspect ratio showed a progressive decline with an increasing antero-posterior dimension. All of the compared designs showed undersizing for the mediolateral dimension distally and for the widths of the resected medial and lateral posterior femoral condyles. But some of the compared designs showed oversizing for the height of the resected medial and lateral posterior femoral condyles. This study provides guidelines for designing a suitable femoral component for total knee prostheses that fit Asian populations.
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KEYWORD
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Distal femur anthropometry, Computed tomography, Aspect ratio, Femoral prosthesis
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