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Remote fit wrist braces through artificial intelligence.

Ashkan Sedigh1, Clay Townsend1, Sultan M Khawam2

  • 1Rothman Orthopaedic Institute, Philadelphia, PA.

Prosthetics and Orthotics International
|April 17, 2023
PubMed
Summary
This summary is machine-generated.

Remote brace fitting using artificial intelligence (AI) accurately determined wrist splint size in 70% of cases, outperforming manufacturer charts. This AI-powered approach offers a viable alternative for accessible orthotic care.

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Area of Science:

  • Orthotics and Prosthetics
  • Artificial Intelligence in Medicine
  • Digital Health

Background:

  • Access to skilled orthotist or hand therapy care can be limited by geographical and availability factors.
  • This study investigates the accuracy of fitting prefabricated wrist splints using a smart device application.
  • The hypothesis is that artificial intelligence (AI) can enable accurate remote brace fitting, determining patient-specific brace size without in-person consultation.

Purpose of the Study:

  • To evaluate the accuracy of a smart device app utilizing AI for fitting prefabricated wrist splints.
  • To compare AI-driven brace sizing with traditional methods like self-selection and manufacturer sizing charts.
  • To establish remote brace fitting as a potential alternative to in-person consultations.

Main Methods:

  • Healthy volunteers were recruited for wrist brace fitting using a smart device app.
  • Machine learning software processed calibrated images to extract hand features and measure dimensions.
  • AI-calculated splint sizes were compared against subject self-selected sizes and manufacturer recommendations.

Main Results:

  • The AI algorithm achieved 70% accuracy in predicting the exact splint size chosen by subjects (SD 10%, p < 0.001).
  • Accuracy improved to 90% (SD 5%) when considering the next adjacent size category.
  • Manufacturer sizing charts showed only 33% agreement with participant selections, significantly lower than AI predictions.

Conclusions:

  • AI-powered remote brace fitting presents a potentially acceptable alternative to current standards for determining wrist splint size.
  • The AI algorithm's accuracy improved with a larger dataset, indicating potential for further refinement.
  • AI-driven brace fitting demonstrated over twice the accuracy compared to relying on manufacturer sizing charts.