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

Launched by VA OFFICE OF RESEARCH AND DEVELOPMENT · Jan 11, 2024

Keywords

ClinConnect Summary

This clinical trial is studying a special type of prosthetic knee called the Ossur Power Knee, which is unique because it uses a motor to help people walk more easily. The trial aims to compare how well this knee performs compared to another knee that doesn’t use a motor and relies on different technology. Researchers want to understand how both knees affect walking and other activities for people who have lost a leg above the knee, and they will also look at whether there are any differences in how men and women use these prosthetic knees.

To be eligible for this trial, participants must be between 45 and 75 years old, have had a leg amputation above the knee for at least one year, and be able to walk without the need for walking aids. They should also have a good fit with their prosthesis and good sensation in their residual limb. If you join the study, you can expect to take part in assessments that will help researchers learn more about the benefits of the Ossur Power Knee. This trial is currently looking for participants, so if you or someone you know fits the criteria, it could be a great opportunity to contribute to important research in this area.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Unilateral, transfemoral amputation (any etiology).
• • Age from 45-75 years.
• • Residual limb length classified as standard (i.e., medium) to long.
• • Prosthesis user for at least 1 year prior to enrolling in the study.
• • K3 or K4 level ambulator.
• • Good sensation on their residual limb(s) (upon routine clinical examination).
• • Good skin integrity upon visual inspection.
• • Does not require the use of assistive devices to walk for short distances.
• • Not currently taking medications that are known to affect balance or gait.
• • Presents with good socket fit based upon a standard assessment by the study prosthetist.
• Exclusion Criteria:
• • Bilateral amputations
• • Individuals with a knee disarticulation