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KMID : 0361620060410030461
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Journal of the Korean Orthopaedic Association
2006 Volume.41 No. 3 p.461 ~ p.466
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Analysis of the Relationship between Posterior Cruciate Ligament Preservation and Femoral Component Size in Total Knee Arthroplasty
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Seo Jai-Gon
Moon Young-Wan
Hwang Chan-Ha
Kang Hong-Je
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Abstract
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Purpose : How PCL preservation affects the selection of femoral component size in total knee arthroplasty.
Materials and Methods: One hundred and fifty-seven patients, two-hundred and twenty-two knees, underwent total knee arthroplasties with Scorpioⓡ. One hundred and eighteen knees underwent PCLpreserving procedures, and one-hundred and four knees underwent PCL-substituting procedures. For minimization of error, we performed soft tissue balancing and then bone cutting by a Linker system with certain posterior slope (≤3o). We compared the sizes of the femoral components between the PCL-preserving and PCL-substituting procedures in order to determine how flexion gap
differences affect femoral component sizes (Wilcoxon signed rank test).
Results : With a certain minimal posterior slope (≤3o), the PCL-preservation procedure led to selection of a 2.4 mm smaller femoral component than the PCL substituting procedure (p＜0.05).
Conclusion : Selection of femoral component size was affected by PCL preservation, and the size of the femoral component was decreased in the PCL preservation group.
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KEYWORD
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Knee, Posterior cruciate Ligament, Total knee arthroplasty, Femoral component size
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