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Study identifier: NCT06218238 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

A Biomechanical Evaluation of the Ossur Power Knee in Persons With Transfemoral Amputation

Condition: Transfemoral Amputation · Limb Loss · Limb Absence  ·  Sponsor: VA Office of Research and Development

PhaseNA
Planned participants20
Who can joinAll sexes, 45 Years to 75 Years
Healthy volunteersNo

About this study

Microprocessor-controlled knees (MPKs) do not typically utilize motors to power joint rotation, but they automatically adjust resistance or damping in the joint to improve swing- and/or stance-phase control as appropriate for the prosthesis user during gait. The Ossur Power Knee is the only commercially-available MPK that uses a motor to provide active power generation during walking and other activities. The purpose of this proposed investigation is to perform and compare biomechanical evaluations of the Power Knee and Ossur Rheo XC, a passive MPK, during walking and other activities by prosthesis users. Furthermore, mobility between male and female subjects will be compared to determine if there are differences in prosthetic knee usage on the basis of sex.

This description comes directly from the study's public registry record.

Talk to the study team

Rebecca Stine, MS  ·  (312) 503-5726  ·  rebecca.stine@va.gov

Steven A Gard, PhD  ·  steven.gard@va.gov

Always discuss trial participation with your own doctor first.

Locations (1)

Jesse Brown VA Medical Center, Chicago, ILChicago, Illinois, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06218238