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Final Program


Final Congress Guide

Engineering and Technology

500 Section - Development and Testing of Custom 3D Printed Foot Orthotics Using Smartphone Images

Wednesday, May 20, 2026
6:00 PM - 7:30 PM PT
Objectives : Custom 3D printed insoles designed from smartphone images - clinical validation study

Design: Open-ended, intent-to-treat effectiveness study in patients attending foot clinic with documented foot pain and functional limitations and advised foot insole modifications. Progressive validation approach of foot orthotic provision with new technology using smart phone and 3D printing. Initial validation (n-46) using VAS pain scores and Foot Function Index (FFI) measurements over 5 days and 4 months follow-up periods. Second stage validation with foot pressure analysis-based prescriptions and foot pressure and pain correlation analysis was done. 

Results:

Initial assessment demonstrated significant reduction in pain (VAS ) and Foot function Index in patients using customised 3D printed orthotics. Reasons for dissatisfaction with the provided orthotics were analysed and integrated into process improvement. Second stage correlation analysis of Foot pressure with Foot pain area revealed no correlation between high foot pressure and pain areas (P > 0.05) for both static and dynamic pressure.Therefore, Foot Pressure analysis-based prescriptions was not integrated into the 3D printed foot orthotics. Data analysis (Subjective and objective)  further helped in creation of a predictive model to automate and improve design accuracy which can help in manufacture of  cost-effective, semi-custom insoles.

Conclusion: This clinical validation study of new technology provided basis for integration of foot data using smartphone into manufacture of customised foot orthotics using 3D printing.