538 深屈曲時におけるCR型とPS型人工関節置換膝の動態解析(S09-1 関節のバイオメカニズム(1),S09 関節のバイオメカニズム)

概要

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The purpose of this study was to determine in vivo knee kinematics after total knee arthroplasty(TKA). Subjects were fifteen patients who implanted either cruciate-retaining (CR) or posterior-stabilized (PS) TKAs. All patients were able to walk without support. Image matching technique with high-resolutional X-ray image from flat panel detector (FPD) was used for the motion analysis of kneeling. The maximum knee flexion of CR and PS were 124.8 degrees and 134.7 degrees. The average of the maximum knee flexion was larger than that of CR. (CR: 109.3±10.0 degrees, PS: 116.2±8.7) In the CR TKA the shallowest flexion angle, posterior rollback wasn't observed. Our method could demonstrate three-dimensional kinetic relation of TKA, which would be useful to improve the design of artificial knee joint and clinical evaluation.
一般社団法人日本機械学会の論文
2006-09-15