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COMPLETEDNA

Assist-Knee: Energy-Harvesting Knee Prosthesis

Evaluation of an Energy-Harvesting Knee Prosthesis in Transfemoral Prosthesis Users

NCT04023045•Orthocare Innovations, LLC

Summary

The purpose of this research is to validate the Assist-Knee design and function by collecting pilot data during the stand-to-sit-to-stand transition in transfemoral prosthesis users when using the Assist-Knee to harvest energy and return energy .

Eligibility

Age

21 - 80 years

Sex

ALL

Healthy Volunteers

Inclusion Criteria

•Unilateral transfemoral limb loss
•At least one year post-amputation and currently successfully using a prosthesis
•Uses modular endoskeletal prosthetic components
•Has bilateral normal range of motion
•Ability to perform the following activities:
•Walking ability or ability to take steps over 10 meters
•Upright standing stability
•Stand-to-sit stability (i.e. go from a standing position to a seated position independently)
•Sit-to-stand stability (i.e. rise from a seated position independently)
•Ability to communicate individual perceptions in the English language
+1 more criteria

Exclusion Criteria

•Confounding injury or musculoskeletal problem
•Pregnancy
•Lower limb peripheral neuropathy
•Symptomatic cardiovascular disease or chronic obstructive pulmonary disease
•Not able to read and understand English
•Use of assistive devices for sit-to-stand and stand-to-sit (e.g. canes, walkers)

Locations (1)

Orthocare Innovations, LLC

Edmonds, Washington, United States

Key Dates

Start Date

July 15, 2019

Primary Completion Date

February 26, 2020

Completion Date

February 26, 2020

Last Updated

October 18, 2023

Enrollment

ACTUAL participants

Conditions

Transfemoral AmputationArtificial Limbs

Interventions

Assist-Knee

DEVICE

Habitual Prosthesis

DEVICE

Metabolic Cost of Walking With Passive vs. Powered Prosthetic Knees Among Persons With Limb Loss

NCT05831696

Transfemoral Amputation

View study

NOT_YET_RECRUITINGNA

Real-time Motion Capture and Visual Feedback for Amputation Gait Training

NCT07049198

Unilateral Transfemoral AmputationUnilateral Knee Disarticulation

View study

UNKNOWN

Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: October 18, 2023Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

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Assist-Knee: Energy-Harvesting Knee Prosthesis

Inclusion Criteria

Exclusion Criteria

Metabolic Cost of Walking With Passive vs. Powered Prosthetic Knees Among Persons With Limb Loss

Real-time Motion Capture and Visual Feedback for Amputation Gait Training

Early Rehabilitation After Transfemoral Amputation in Moderately Active Patients

Functional Performance Evaluation of NU-FlexSIV Socket