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J Biomech. 1990;23(10):977-84.

Joint reaction forces at the first MTP joint in a normal elderly population.

Author information

1
Apps Medical Research Center, Kingston General Hospital, Ontario, Canada.

Abstract

The calculation of net ankle, knee, and hip joint reaction forces is an often applied procedure in the analysis of gait. Except for very few studies, joint reaction forces have not been measured in other joints such as the fingers, wrist, elbow, shoulder and toes. In this study the joint reaction forces between the metatarsal head and the proximal phalanx and the metatarsal head and the sesamoids are calculated for the push off phase during gait. The results of ten normal elderly subjects show that the maximum resultant loads of the two articulations lie close to the longitudinal axis of the metatarsal. The knowledge of the magnitude and direction of the joint reaction forces of a normal elderly population will be essential for the design of an optimal fixation of an artificial anatomical first MTP joint.

PMID:
2229095
[Indexed for MEDLINE]

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