Subtalar Pronation--relationship to the Medial Longitudinal Arch Loading in the Normal Foot.

Authors

George A. Arangio MD, FACS, Lehigh Valley Health NetworkFollow
Douglas C. Phillippy PhDFollow
Dayan Xiao PhDFollow
Wei K. Gu PhD
Eric P. Salathe PhD, Lehigh Valley Health NetworkFollow

Publication/Presentation Date

3-1-2000

Abstract

A three-dimensional biomechanical model was used to calculate the mechanical response of the foot to a load of 683 Newtons with the subtalar joint in the neutral position, at five degrees of pronation, and at five degrees of supination. Pronation causes the forefoot to evert, increasing the load borne by the first metatarsal. This results in a 47% increase in the moment about the talonavicular joint and a 58% increase in the moment about the navicular-medial cuneiform joint. Subtalar joint supination causes the forefoot to invert and results in a 55% increase in the moment about the calcaneal-cuboid joint.

Volume

21

Issue

3

First Page

216

Last Page

220

ISSN

1071-1007

Published In/Presented At

Arangio, G. A., Phillippy, D. C., Xiao, D., Gu, W. K., & Salathe, E. P. (2000). Subtalar pronation--relationship to the medial longitudinal arch loading in the normal foot. Foot & Ankle International, 21(3), 216-220.

Disciplines

Medicine and Health Sciences | Orthopedics | Other Medical Specialties | Surgery

PubMedID

10739152

Department(s)

Department of Surgery, Department of Surgery Faculty

Document Type

Article