Tracking Activity Use in MFCL-2 Transfemoral Amputees with Microprocessor Knee Technology
Date of Award
Summer 6-26-2024
Document Type
Non Thesis
Degree Name
Master of Science in Orthotics and Prosthetics
Department
Kinesiology
First Advisor
Amy Funke
Abstract
The leading cause of lower limb amputations is due to dysvascular and diabetic complications. Dysvascular amputees who receive an above knee amputation experience higher energy expenditure and oxygen consumption in comparison to those with trauma related amputations. Current research for microprocessor knee (MPK) technology has proven to reduce energy costs, decrease cognitive demand, increase walking stability and confidence, and enhance safety. This demographic of amputees are at an increased risk for falls due to deteriorations in health status. Historically, MPK technology has been designated for those classified as Medicare Functional Classification Level 3 (MCFL-3) otherwise known as unlimited community ambulators. Lower activity transfemoral amputees are limited to this technology and must rely upon traditional mechanical knee components referred to as a non-microprocessor knee (NMPK). Increased health longevity has been linked with average daily step count as a marker to determine overall well-being. This paper aims to increase the validity of cross comparison data between non-microprocessor knees (NMPK) and microprocessor knees for dysvascular and diabetic etiologies at the transfemoral level over a longitudinal design model implementing wearable step-count activity tracker systems mounted directly to the prosthesis.