# PROTOCOLO DIGITAL PARA PROJETO CONCEITUAL E VALIDAÇÃO DE UMA ÓRTESE TORNOZELO-PÉ

**Authors:** Rui Araújo, Patrícia Maria de Moraes Barros Fucs

PMC · DOI: 10.1590/1413-785220253301e285432 · Acta Ortopedica Brasileira · 2025-02-03

## TL;DR

This study created a digital protocol using 3D technologies to design and validate custom ankle-foot orthoses for children with drop foot.

## Contribution

The novelty lies in establishing a digital workflow for patient-specific AFO design using 3D modeling and static load analysis.

## Key findings

- A functional AFO was designed for a 12-year-old with drop foot using 3D scanning and CAD tools.
- Static load analysis confirmed structural integrity of the AFO under critical conditions using ABS material.
- The digital protocol demonstrated potential for custom orthoses in lower limb rehabilitation.

## Abstract

This original article aimed to develop a digital protocol for the conceptual design and validation of Ankle-Foot Orthoses (AFO) using 3D mapping technologies.

A scanned model of the ankle-foot complex of a 12-year-old child with a drop foot was utilized, along with a generic AFO model from a Computer-Aided Design environment. Autodesk Meshmixer and Fusion software were employed for conceptual design and static load analysis.

The static load analysis using the Von Mises failure criterion on the AFO model with ABS material demonstrated structural integrity under critical loading conditions. The digital protocol facilitated the design of a functional and patient-specific AFO orthosis.

The study successfully established a digital workflow for AFO design and validation, showcasing the potential of 3D technologies in creating customized orthoses for lower limb rehabilitation. Level of Evidence IV; Descriptive Study.

## Full-text entities

- **Diseases:** drop foot (MESH:D020427), AFO (MESH:D016512)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/PMC11801218/full.md

## References

24 references — full list in the complete paper: https://tomesphere.com/paper/PMC11801218/full.md

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Source: https://tomesphere.com/paper/PMC11801218