Arch volume:a new method for medial longitudinal arch measurement
Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons(2022)
Abstract
Background: As a flexible and elastic structure, the dynamic morphometry of medial longitudinal arch remains to be an unresolved Issue for clinic. Here we introduce a new measurement named arch volume to describe the morphological changes of the medial longitudinal arch during weight-bearing and compare with present method for measuring MLA.Methods: 64 healthy participants were enrolled. And the dynamic arch morphology was measured under four weight bearing status with navicular height, arch area and arch volume, respectively.Results: With the increase of weight loading, the flattening or slightly deformation of medial longitudinal arch was observed by all method (p< 0.05). However, as a 3D indicator, arch volume not only showed higher sensitivity than other method, but also provide visualization of MLA during loading changing.Conclusions: Compared with navicular height and arch area, arch volume has a significant advantage in describing arch morphological changes under different weight bearing status.(c) 2022 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.
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Key words
Medial longitudinal arch,Weight-bearing,Biomechanics,Scaphoid bone,Arch area,Arch volume
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