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Microprocessor feet improve prosthetic mobility and physical function relative to non-microprocessor feet.

Eric L Weber¹, Phillip M Stevens^1,2, Dwiesha L England¹

¹Hanger Institute for Clinical Research and Education, Austin, TX, USA.

Journal of Rehabilitation and Assistive Technologies Engineering

|July 18, 2022

Summary

This summary is machine-generated.

Microprocessor Feet significantly improve physical function and mobility for amputees. Patients reported better socket comfort, less back pain, and easier transfers and stair negotiation with these advanced prosthetic devices.

Keywords:

Patient reported outcomes measurement information system amputation lower limb prosthesis microprocessor feet prosthesis evaluation questionnaire

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Area of Science:

Biomedical Engineering
Rehabilitation Science
Prosthetics and Orthotics

Background:

Clinical benefits of microprocessor-controlled prosthetic feet are often reported from lab settings.
There is a need for studies with greater ecological validity to assess real-world patient outcomes.
Understanding patient transitions from non-microprocessor to microprocessor prosthetic feet is crucial.

Purpose of the Study:

To evaluate differences in physical function and mobility outcomes after transitioning to Microprocessor Feet.
To assess patient-reported benefits of advanced prosthetic foot-ankle mechanisms.

Main Methods:

Retrospective analysis of patient outcomes.
Collected patient-reported benefits using a custom short form of the Patient-Reported Outcomes Measurement Information System-Physical Function.
Utilized individual items from the Prosthesis Evaluation Questionnaire for 23 individuals.

Main Results:

Observed a significant increase in physical function (mean t-score increase of 5.4 ± 1.25; p = .0004).
Reported significant improvements in several patient-reported mobility items.
Demonstrated positive impact on physical function and mobility.

Conclusions:

Microprocessor Feet positively impact physical function and mobility in amputees.
Findings support enhanced socket comfort, reduced back pain, and improved transfers.
Microprocessor Feet facilitate better hill ascent/descent and stair negotiation.