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Showing 1–24 of 50 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Amputation of Knee Clear all
Not yet recruiting Not applicable Interventional

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

NCT07103798
View directory record Official record
Conditions
Transfemoral Amputation, Limb Loss, Limb Absence
Interventions
College Park ICON, Conventional NMPK
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
45 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Chicago, Illinois • Hines, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional

Use of Passive, Adaptive, and Active Prosthetic Knees in Persons With Unilateral, Transfemoral Amputation

NCT02219230
View directory record Official record
Conditions
Transfemoral Amputation
Interventions
Active knee (Ossur Power Knee II), Adaptive knee (Ossur Rheo), Passive knee (Various manufacturers)
Device
Lead sponsor
University of Washington
Other
Eligibility
45 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 27, 2015 · Synced Sep 9, 2026, 8:30 AM EDT
Recruiting Not applicable Interventional

Bio Leg: Advancing Mobility (BAM)

NCT07613502
View directory record Official record
Conditions
Amputation of Lower Limb Above Knee, Amputee, Amputation
Interventions
Bio Leg
Device
Lead sponsor
University of Florida
Other
Eligibility
40 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Recruiting Phase 1 Interventional

Influence of Prosthetic Foot Stiffness on Transtibial Osseointegrated Bone-Anchored Limb Outcomes

NCT07263945
View directory record Official record
Conditions
Amputation, Transtibial Amputation - Unilateral, Bone Anchored Devices, Osseointegration
Interventions
As-prescribed prosthetic foot stiffness, A prosthetic foot that is two prosthetic foot stiffness categories stiffer than the stiffness of the as-prescribed prosthetic foot, A prosthetic foot that is two prosthetic foot stiffness categories softer than the stiffness of the as-prescribed prosthetic foot
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional Results available

An Investigation of Functional Improvements in the RHEO KNEE Compared to Hydraulic Microprocessor Controlled Knees (MPKs)

NCT04023578
View directory record Official record
Conditions
Prosthesis User, Amputation
Interventions
RHEO KNEE XC
Device
Lead sponsor
Össur Iceland ehf
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
4
States / cities
Orlando, Florida • Flowood, Mississippi • Fort Worth, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2020 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Phase 1 Interventional

Effect of Socket Wall Height With Vacuum Suspension for Above Knee Amputees

NCT01559909
View directory record Official record
Conditions
Amputation
Interventions
Vacuum assisted socket technology (Harmony System, Otto Bock Healthcare)
Device
Lead sponsor
Stony Brook University
Other
Eligibility
21 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
2
States / cities
Stony Brook, New York • West Babylon, New York
Source: ClinicalTrials.gov public record
Updated May 11, 2014 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Socket Cooling Effectiveness Take Home Study

NCT04484805
View directory record Official record
Conditions
Amputation, Amputation; Traumatic, Leg, Lower, Amputation Stump, Limb; Absence, Congenital, Lower, Prosthesis User, Lower Limb Amputation Below Knee (Injury)
Interventions
ICE Condition, Sham Condition
Device
Lead sponsor
Liberating Technologies, Inc.
Industry
Eligibility
18 Years to 89 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Holliston, Massachusetts • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 21, 2024 · Synced Sep 9, 2026, 8:30 AM EDT
Not listed Early Phase 1 Interventional

Biofeedback Retention in Individuals With AKA

NCT05126485
View directory record Official record
Conditions
Amputation of Knee, Back Pain, Osteo Arthritis Knee
Interventions
Haptic Biofeedback from SageMotion Biofeedback System
Device
Lead sponsor
San Jose State University
Other
Eligibility
18 Years to 70 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
2
States / cities
Palo Alto, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2023 · Synced Sep 9, 2026, 8:30 AM EDT
Recruiting Not applicable Interventional

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

NCT05831696
View directory record Official record
Conditions
Transfemoral Amputation
Interventions
Powered Microprocessor-controlled Knee (PMPK)
Other
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional Results available

An Investigation on Function and Performance of a New Microprocessor Controlled Prosthetic Knee

NCT05523349
View directory record Official record
Conditions
Prosthesis User, Amputation
Interventions
NAVii
Device
Lead sponsor
Össur Iceland ehf
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
3
States / cities
Merrillville, Indiana • Bay City, Michigan • Perrysburg, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 1, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional Results available

Determining the Potential Benefit of Powered Prostheses

NCT02828982
View directory record Official record
Conditions
Unilateral Traumatic Amputation, Amputation, Traumatic
Interventions
Powered ankle prosthesis, Dynamic Response Foot
Device
Lead sponsor
Deanna H Gates
Other
Eligibility
21 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 17, 2022 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional

The Effect of Ischemic Conditioning on Strength and Ambulation in Subjects with PAD

NCT04937179
View directory record Official record
Conditions
Peripheral Arterial Disease, Peripheral Vascular Disease, Amputation, Lower Limb Amputation Knee, Lower Limb Amputation Above Knee (Injury), Lower Limb Amputation Below Knee (Injury)
Interventions
Ischemic Conditioning Low - Sham Comparator, Ischemic Conditioning High - Active Comparator
Procedure
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 26, 2025 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Phase 1 Interventional

A Clinical and Histological Analysis of Mesenchymal Stem Cells in Amputation

NCT02685098
View directory record Official record
Conditions
Ischemia, Peripheral Arterial Disease, Peripheral Vascular Disease, Vascular Disease, Arterial Occlusive Disease, Arteriosclerosis, Atherosclerosis, Cardiovascular Disease, Pathologic Processes, Orthopedic Procedures, Amputation
Interventions
Allogeneic bone marrow derived mesenchymal stem cells
Biological
Lead sponsor
Indiana University
Other
Eligibility
40 Years to 90 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional Results available

Cryoanalgesia to Treat Phantom Limb Pain Following Above-Knee Amputation

NCT06071715
View directory record Official record
Conditions
Amputation, Surgical, Amputation, Traumatic, Phantom Limb Pain, Phantom Pain Following Amputation of Lower Limb
Interventions
ACTIVE cryoneurolysis, SHAM cryoneurolysis
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Wearable Airbag Technology to Mitigate Falls in Individuals With High Fall Risk

NCT05076565
View directory record Official record
Conditions
Stroke, Parkinson Disease, Lower Limb Amputation Knee, Fall Injury, Fall Patients, Falling
Interventions
Airbag Belt Fall Protection System
Device
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 85 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 28, 2025 · Synced Sep 9, 2026, 8:30 AM EDT
Not yet recruiting Not applicable Interventional

Determining the Effects of Ischemic Conditioning and Neuromuscular Electrical Stimulation on Overall Function After Lower Limb Amputation

NCT07664995
View directory record Official record
Conditions
Lower Limb Amputation Above Knee, Below Knee Amputation
Interventions
Blood pressure cuff, Neuromuscular Electrical Stimulation
Device
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional Results available

Clinical Investigation (Beta) of a New Developed Prosthetic Knee

NCT06748729
View directory record Official record
Conditions
Amputation
Interventions
Navii Knee
Device
Lead sponsor
Össur Iceland ehf
Industry
Eligibility
18 Years to 80 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Sep 3, 2025 · Synced Sep 9, 2026, 8:30 AM EDT
Recruiting Not applicable Interventional

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

NCT06218238
View directory record Official record
Conditions
Transfemoral Amputation, Limb Loss, Limb Absence
Interventions
Powered prosthetic knee joint, Conventional prosthetic knee joint
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
45 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 9, 2026, 8:30 AM EDT
Completed Not applicable Interventional Results available

Feasibility Study to Evaluate a New Energy Storage and Return Prosthetic Foot

NCT04239222
View directory record Official record
Conditions
Lower Limb Amputation Below Knee (Injury), Lower Limb Amputation Above Knee (Injury), Lower Limb Amputation Knee
Interventions
Revo-M, Taleo, Proflex XC
Device
Lead sponsor
Otto Bock Healthcare Products GmbH
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
4
States / cities
Mesa, Arizona • Linthicum, Maryland • Dayton, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2024 · Synced Sep 9, 2026, 8:30 AM EDT
Active, not recruiting No phase listed Observational

C-STAR Movement Database

NCT05471375
View directory record Official record
Conditions
Stroke, Parkinson Disease, Lower Limb Amputation Above Knee (Injury), Lower Limb Amputation Below Knee (Injury)
Interventions
Database Entry
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
Up to 99 Years
Enrollment
250 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 9, 2026, 8:30 AM EDT
Recruiting Not applicable Interventional

Evaluation of a Neural-Controlled Powered Prosthesis Across Diverse Real-World Tasks

NCT07204912
View directory record Official record
Conditions
Transfemoral Amputation
Interventions
MIT Powered Leg
Device
Lead sponsor
Massachusetts Institute of Technology
Other
Eligibility
18 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Sep 9, 2026, 8:30 AM EDT
Recruiting Phase 3 Interventional

Temsirolimus Adventitial Delivery to Improve ANGioplasty and/or Atherectomy Revascularization Outcomes Below the Knee

NCT04433572
View directory record Official record
Conditions
Peripheral Artery Disease, Critical Limb Ischemia
Interventions
Temsirolimus, Saline placebo
Drug
Lead sponsor
Mercator MedSystems, Inc.
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
2
States / cities
Houma, Louisiana • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Sep 9, 2026, 8:30 AM EDT
Active, not recruiting Not applicable Interventional

Assessing Outcomes With Microprocessor Knee Utilization in a K2 Population

NCT04784429
View directory record Official record
Conditions
Lower Limb Amputation Above Knee (Injury), Congenital Amputation of Lower Limb, Lower Limb Amputation Knee
Interventions
Kenevo or C-Leg 4, Non microprocessor controlled knee (NMPK)
Device
Lead sponsor
Otto Bock Healthcare Products GmbH
Industry
Eligibility
65 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
90
States / cities
Dothan, Alabama • Gilbert, Arizona • Phoenix, Arizona + 85 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Sep 9, 2026, 8:30 AM EDT
Not listed No phase listed Observational

Evaluation of High-Performance, Customized, Rapidly-Manufacturable Prosthetic Feet That Provide Improved Mobility

NCT05265403
View directory record Official record
Conditions
Amputation of Lower Limb Below Knee
Interventions
Commercially-available energy storage and return prosthetic foot, MIT-Lower Leg Trajectory Error (LLTE) customized prosthetic feet
Drug · Device
Lead sponsor
Massachusetts Institute of Technology
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 11, 2022 · Synced Sep 9, 2026, 8:30 AM EDT