Padding and Devices for Foot Comfort

Montgomery, Royal M.; Locascio, William V.

doi:10.1001/archderm.1966.01600240105022

Cited by 8 publications

(1 citation statement)

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“…Based on the fact that the shear wave speed is directly related to the stiffness of tissues, supersonic shear wave elastography (SWE) is a kind of ultrasound elastography that can quantitatively evaluate the stiffness of tissues by generating shear wave propagation within tissues through acoustic heel and provides additional confinement for the heel. Since originally developed for athletes suffering from heel bruises [5], the plastic heel cup has been adopted to relieve plantar heel problems in clinical practice for several decades, dating back at least to 1966 [6]. Plastic heel cups are inexpensive and effective in relieving plantar heel pain rapidly and have been recommended as one of the initial therapies for treating plantar heel pain [5].…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Effects of Plastic Heel Cup on Plantar Fasciitis Patients Evaluated by Ultrasound Shear Wave Elastography

Lin

Chen

et al. 2022

JCM

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The plastic heel cup has been adopted to treat plantar heel problems for years. However, its mechanisms and biomechanical effects are yet to be fully understood. The purpose of this study was to investigate the effects of the plastic heel cup on the microchamber and macrochamber layers of the heel pad by comparing the stiffness (in terms of the shear wave speed) and thickness of these two layers with and without a plastic heel cup during static standing. Fifteen patients with unilateral plantar fasciitis were recruited. The shear wave speed and thickness of the microchamber and microchamber layers of each symptomatic heel pad during standing measured by ultrasound shear wave elastography were compared between conditions with and without a plastic heel cup. It was found that a plastic heel cup reduced the shear wave speed of the microchamber layer to 55.5% and increased its thickness to 137.5% compared with the condition without a plastic heel cup. For the microchamber layer, the shear wave speed was reduced to 89.7%, and thickness was increased to 113.6% compared with the condition without a plastic heel cup. The findings demonstrate that a plastic heel cup can help to reduce the stiffness and increase the thickness for both layers of the heel pad during standing, suggesting that the mechanism of a plastic heel cup, and its resulting biomechanical effect, is to reduce the internal stress of the heel pad by increasing its thickness through confinement.

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Section: Introductionmentioning

confidence: 99%