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

Author:

Weber Eric L1,Stevens Phillip M12ORCID,England Dwiesha L1ORCID,Swilley Vahness D1,Wurdeman Shane R13

Affiliation:

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

2. Department of Physical Medicine and Rehabilitation, University of Utah Health, Salt Lake City, UT, USA

3. Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA

Abstract

Introduction: The clinical benefits associated with the microprocessor regulation of prosthetic ankle position and resistance have largely been reported through manufacturer conducted research in controlled laboratory environments. Measures with greater ecological validity are needed. This study aimed to understand if there are differences in physical function and mobility outcomes as patients transitioned from a non-Microprocessor to Microprocessor Feet. Method: A retrospective analysis of patient outcomes was performed. Patient-reported benefits associated with the adoption of such prosthetic foot-ankle mechanisms were collected from 23 individuals through the longitudinal use of a custom short form of the Patient-Reported Outcomes Measurement Information System-Physical Function and individual items from the Prosthesis Evaluation Questionnaire. Results: The impact of Microprocessor Feet upon physical function and mobility were observed in a significant increase in physical function (mean increase in t-score of 5.4 ± 1.25; p = .0004) and significant improvements in several mobility items. Conclusions: Collectively, these measures support the beneficial impact of Microprocessor Feet on improving socket comfort, reducing back pain, improving sit to stand transfers and enhancing hill ascent and descent as well as stair negotiation.

Publisher

SAGE Publications

Subject

Ocean Engineering

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