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Related Experiment Video

Updated: Feb 7, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

Published on: January 24, 2018

Advances in Powered Ankle-Foot Prostheses.

Erik Chumacero¹, Abdullah Al Masud¹, Doruk Isik¹

¹Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas.

Critical Reviews in Biomedical Engineering

|July 30, 2018

Summary

This summary is machine-generated.

This review covers powered ankle-foot prostheses (PAFPs), detailing actuation, control strategies, and common actuator types. Future PAFPs need to be lighter, more energy-efficient, and better at stair negotiation.

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Area of Science:

Biomedical Engineering
Rehabilitation Technology
Prosthetics

Background:

Powered ankle-foot prostheses (PAFPs) aim to restore natural gait for amputees.
Advancements in actuation and control are crucial for PAFP performance.

Purpose of the Study:

To review recent developments in PAFPs.
To highlight key areas including actuation, control strategies, and actuator types.

Main Methods:

Review of literature on PAFPs.
Analysis of common control strategies (finite-state machines, low-level torque control).
Examination of actuator technologies (pneumatic, hydraulic, electromechanical).

Main Results:

Finite-state machines with low-level torque control are prevalent.
Brushless DC motors with energy storage enhance autonomy and reduce size.
Experimental evaluations show promising results in walking velocity and gait symmetry.

Conclusions:

Current PAFPs demonstrate acceptable performance in basic walking.
Future research should prioritize weight reduction and energy efficiency.
Enhancements in gait phase classification, intent prediction, and stair negotiation are essential.