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Three-dimensional foot shape analysis in children: a pilot analysis using three-dimensional shape descriptors.

Matyas Varga¹, Carina Price², Stewart C Morrison³

¹School of Health Sciences, University of Brighton, Brighton, UK. m.varga@brighton.ac.uk.

Journal of Foot and Ankle Research

|February 1, 2020

Summary

This summary is machine-generated.

Three-dimensional (3D) scanning reveals how children's feet change shape as they grow. This technology helps track development and identify differences in foot morphology across various age groups.

Keywords:

3D scanning Curvedness Foot development Foot morphology Paediatric foot Shape-index

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Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder

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Published on: November 14, 2019

Evaluating the Function of the Foot Core System in the Elderly

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Published on: March 11, 2022

Area of Science:

Pediatric Podiatry
Biomechanical Engineering
Developmental Morphology

Background:

Current methods for assessing children's foot shape are often 2D, lacking resolution and accuracy.
These limitations hinder understanding of complex, multi-planar foot development during childhood.
Three-dimensional (3D) scanning offers higher resolution and more relevant 3D shape measures for studying foot morphology.

Purpose of the Study:

To investigate the utility of 3D shape descriptors derived from 3D scanning data.
To determine if these descriptors can differentiate foot morphology among children of different ages.

Main Methods:

Recruited 15 children across three age groups (2, 5, and 7 years).
Scanned both feet in a bipedal stance using an Artec Eva 3D hand-held scanner.
Extracted 3D shape descriptors from right foot scans to create histograms and heat maps for age-group comparisons.

Main Results:

Observed age-related changes in the dorsal, medial, and lateral foot surfaces, becoming less rounded with increased indentation.
Heat maps showed anatomical landmarks (malleoli, navicular tuberosity) becoming more prominent.
Plantar surface analysis revealed increasing midfoot concavity extending from the medial aspect with age.

Conclusions:

Increasing age correlates with a thinner 3D foot structure, revealing emerging bony architecture.
The medial longitudinal arch (MLA) demonstrates increased area and concavity with age.
3D shape descriptors show significant potential for quantifying developmental changes in pediatric foot structure.