CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 17 enrolled
Drug / intervention
Power Kneedevice
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04787627
NCT04787627N/ACompleted
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Clinical Investigation (Beta) of Power Knee

Össur Iceland ehf·interventional·Posted Mar 8, 2021·Updated Sep 22, 2025

In Brief

A clinical study evaluating Power Knee for Prosthesis User and Amputation. Completed, enrolled 17 participants across 2 sites.

Detailed Summary

Prospective two group cross over investigation, comparing the investigational device (Power Knee, a powered microprocessor controlled prosthetic knee) and subjects prescribed microprocessor prosthetic knee (MPK). The primary objective was to evaluate the efficacy of the investigational device in reducing exertion during walking compared to passive MPKs. Additionally to evaluate the efficacy of the investigational device in the short and long term compared to passive MPKs and previous versions of the Power Knee, during daily living activities i.e. walking on level ground, in stairs and inclines, rising from and sitting down to a chair as well as performance of gait functions and ease of set up for average to highly active transfemoral/knee disarticulation amputees and Certified Prosthetists/Orthotists (CPOs).

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsProsthesis User, Amputation
CountriesUnited States
CollaboratorsMedical Center Orthotics and Prosthetics

Timeline

N/ACompletedFinished
2020202120222023202420252026
First PostedMar 8, 2021
Enrollment StartNov 18, 2019
Primary CompletionJul 6, 2020
TodayJul 2, 2026
Enrollment to primary: 8 monthsPosted 5.3 years ago

Interventions

Power Kneedevice

Powered microprocessor controlled prosthetic knee