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Processes
Volume 11
Issue 1
10.3390/pr11010024
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Article

Using Photogrammetry to Obtain 3D-Printed Positive Foot Casts Suitable for Fitting Thermoconformed Plantar Orthoses

by
Ana María Pérez Pico
1,
Félix Marcos Tejedor
2,
Luis Carlos de Cáceres Orellana
3,4,
Pablo de Cáceres Orellana
3,4 and
Raquel Mayordomo
4,*
1
Department of Nursing, Centro Universitario de Plasencia, Universidad de Extremadura, 10600 Plasencia, Spain
2
Department of Medical Sciences, Faculty of Health Sciences, Universidad de Castilla-La Mancha, 45600 Talavera de la Reina, Spain
3
Davonde 3D, 06140 Badajoz, Spain
4
Department of Anatomy, Centro Universitario de Plasencia, Universidad de Extremadura, 10600 Plasencia, Spain
*
Author to whom correspondence should be addressed.
Processes 2023, 11(1), 24; https://doi.org/10.3390/pr11010024
Submission received: 21 November 2022 / Revised: 7 December 2022 / Accepted: 20 December 2022 / Published: 23 December 2022
(This article belongs to the Section AI-Enabled Process Engineering)
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Abstract

The use of photogrammetry provides an inexpensive, alternative method that can simplify the processes traditionally carried out in the orthotics workshop. The objectives of this study are to develop a method based on photogrammetry to obtain 3D-printed positive foot casts for fabricating thermoconformed orthoses from a negative cast in phenolic foam. Using a basic Smartphone, a photo capture protocol for feet, free software and a 3D printer, we tested the suitability of the positive cast obtained to fabricate custom foot orthoses using thermoconformed 3 mm polypropylene in the orthotics laboratory. The results show that digitally fabricated casts provide a very close replicate of the positive casts obtained traditionally through plaster casting (maximum dimension discrepancy between casts of 2 mm in length and 0.4 mm in forefoot, midfoot and rearfoot measurements). They are also suitable for the process of fabricating 2- and 3-mm polypropylene thermoconformed plantar orthoses. Photogrammetry can be used as a new method to obtain a positive 3D foot cast suitable for fabricating custom orthoses, in a valid, safe, cleaner and more lasting procedure that removes the process of plaster casting.
Keywords: photogrammetry; foot orthoses; additive manufacture; 3D photography; positive cast; 3D printed photogrammetry; foot orthoses; additive manufacture; 3D photography; positive cast; 3D printed

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MDPI and ACS Style

Pérez Pico, A.M.; Marcos Tejedor, F.; de Cáceres Orellana, L.C.; de Cáceres Orellana, P.; Mayordomo, R. Using Photogrammetry to Obtain 3D-Printed Positive Foot Casts Suitable for Fitting Thermoconformed Plantar Orthoses. Processes 2023, 11, 24. https://doi.org/10.3390/pr11010024

AMA Style

Pérez Pico AM, Marcos Tejedor F, de Cáceres Orellana LC, de Cáceres Orellana P, Mayordomo R. Using Photogrammetry to Obtain 3D-Printed Positive Foot Casts Suitable for Fitting Thermoconformed Plantar Orthoses. Processes. 2023; 11(1):24. https://doi.org/10.3390/pr11010024

Chicago/Turabian Style

Pérez Pico, Ana María, Félix Marcos Tejedor, Luis Carlos de Cáceres Orellana, Pablo de Cáceres Orellana, and Raquel Mayordomo. 2023. "Using Photogrammetry to Obtain 3D-Printed Positive Foot Casts Suitable for Fitting Thermoconformed Plantar Orthoses" Processes 11, no. 1: 24. https://doi.org/10.3390/pr11010024

APA Style

Pérez Pico, A. M., Marcos Tejedor, F., de Cáceres Orellana, L. C., de Cáceres Orellana, P., & Mayordomo, R. (2023). Using Photogrammetry to Obtain 3D-Printed Positive Foot Casts Suitable for Fitting Thermoconformed Plantar Orthoses. Processes, 11(1), 24. https://doi.org/10.3390/pr11010024

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