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Effect of a Microprocessor-controlled Prosthetic Knee Joint on K2 Level Ambulators

NCT07103798 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2026-05-08

No results posted yet for this study

Summary

Microprocessor-controlled knees (MPKs) 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 purpose of this proposed investigation is to determine if there are substantial physical and psychological benefits to fitting lower functioning Veteran ambulators having transfemoral amputations with an MPK compared with a nonmicroprocessor-controlled knee (NMPK). Using a repeated-measures, cross-sectional experimental design, approximately 20 Veterans with unilateral, transfemoral amputations will be evaluated on two separate occasions at the Jesse Brown VA Medical Center or the Edward Hines, Jr. VA Hospital, first with their conventional NMPK and then again after a 2-month accommodation period with the College Park Icon MPK.

Conditions

  • Transfemoral Amputation
  • Limb Loss
  • Limb Absence

Interventions

OTHER

College Park ICON

Subjects will be fitted and trained on the College Park ICON MPK. An accommodation period of 2 months will be provided prior to evaluation with the knee joint.

OTHER

Conventional NMPK

Subjects will be tested walking with their conventional, mechanical prosthetic knee prior to being fitted with the MPK.

Sponsors & Collaborators

  • VA Office of Research and Development

    lead FED

Principal Investigators

  • Steven A Gard, PhD · Jesse Brown VA Medical Center, Chicago, IL

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
45 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-07-01
Primary Completion
2028-05-01
Completion
2028-06-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07103798 on ClinicalTrials.gov