Foot evaluation under weight bearing using roentgenogram

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  • X線撮影を用いた荷重下での足部評価
  • Xセン サツエイ オ モチイタ カジュウカ デノ ソクブ ヒョウカ

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Abstract

We evaluated the function of the foot kinesiologically dividing it largely into two parts, fore- and midfoot (We call these parts as forefoot later on) and hindfoot, rear part from Chopart joint. The hindfoot reflects the movement of subtalar joint, while the forefoot shows the movement of the foot distal to the Chopart joint. The range of motion of the hindfoot gives influence to the motion of forefoot. When we intend to evaluate the function of the foot, it is necessary totally to examine the movement of those two parts (fore- and hindfoot), including the muscle activities of the lower thigh at the time of physical activity. In terms of this viewpoint, the deviation of tarsal bones of the fore- and hindfoot were measured using roentgenogram of the foot taken under weight bearing. As the results, the certain tendency were noted between the change of hight of the longitudinal arch and calcaneal abduction and adduction, and also several relationships were found in the deviation of tarsal bones in fore- and hindfoot. The correlation was recognized between the decrease of longitudinal arch and calcaneal abduction (C point, p=0.003, N point, p=0.009, L point, p=0.003, f point, p=0.006). Based on mentioned results above, further research was performed in terms of kinetic points of view to examine the foot function.

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