Clinical trials: Knee Prosthesis
Knee Arthroplasty, Total
iTotal Pilot Study of ConforMIS Custom Total Knee Implant
To compare the outcomes of patients receiving the ConforMIS custom total knee implant to the outcomes of patients who receiving an off-the-shelf total knee implant.
- Trial name
- NCT02186587
- Testing
- ConforMIS custom total knee
- Where
- United States
- Volunteers
- 28 people
- Sponsor
- University of Missouri-Columbia
Transfemoral Amputation, Artificial Limbs
Assist-Knee: Energy-Harvesting Knee Prosthesis
The purpose of this research is to validate the Assist-Knee design and function by collecting pilot data during the stand-to-sit-to-stand transition in transfemoral prosthesis users when using the Assist-Knee to harvest energy…
- Trial name
- NCT04023045
- Testing
- Assist-Knee, Habitual Prosthesis
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Orthocare Innovations, LLC
Traumatic Amputation of Lower Extremity
Effects of Wearing a Powered Ankle-Foot Prosthesis on Amputee Walking
Amputees wearing a conventional prosthesis require 20-30% more metabolic energy to walk at the same speeds as non-amputees and this discrepancy is more apparent at faster walking speeds.
- Trial name
- NCT00869947
- Testing
- Powered ankle-foot prosthesis, No device
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Knee Prosthesis
In Vivo Kinematics Comparison of Stryker or Zimmer Total Knee Arthroplasty
This study will compare the kinematics data collected from patients with implants created by different manufacturers to see which of these implants provides a more normal-like kinematic pattern compared to the normal knee.
- Trial name
- NCT01864434
- Testing
- Stryker posterior cruciat retaining (PCR) total knee arthroplasty (TKA), Zimmer PCR TKA
- Where
- 4 sites in United States
- Volunteers
- 50 people
- Sponsor
- The University of Tennessee, Knoxville
Lower Limb Amputation Above Knee (Injury)
Comparative Effectiveness Between Microprocessor Knees and Non-Microprocessor Knees
This study will assess if the functional performance and musculoskeletal outcome of transfemoral amputees are improved after receiving a Microprocessor Knee (MPK) compared to a Non-Microprocessor Knees (NMPK).
- Trial name
- MPK-AOPA (NCT02240186)
- Testing
- Microprocessor Knee (MPK), Non-Microprocessor Knee (NMPK)
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Mayo Clinic
Prosthesis User, Amputation
An Investigation of Functional Improvements in the RHEO KNEE Compared to Hydraulic Microprocessor Controlled Knees (MPKs)
The aim of this study was to evaluate the mobility, perceived safety and functioning of unilateral transfemoral (TF) amputees using the Rheo Knee XC compared to their existing prosthetic knee (RHEO KNEE II, III or Genium, X2 or…
- Trial name
- NCT04023578
- Testing
- RHEO KNEE XC
- Where
- 4 sites in United States
- Volunteers
- 15 people
- Sponsor
- Össur Iceland ehf
Osteoarthritis
A Multicenter Study to Evaluate Functional Outcome After Knee Replacement
Patients will be consecutively enrolled by implant. Implant groups will be those who have undergone surgery with either a ConforMIS iTotal® CR TKA or an Off-the- Shelf (OTS) system.
- Trial name
- NCT02494544
- Testing
- Off the Shelf Total Knee Replacement, ConforMIS iTotal Knee Replacement
- Where
- 8 sites in United States
- Volunteers
- 215 people
- Sponsor
- Restor3D
Prosthesis User, Amputation
Clinical Investigation (Beta) of Power Knee Mainstream - Dynamic
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).
- Trial name
- NCT04787627
- Testing
- Power Knee
- Where
- 2 sites in United States
- Volunteers
- 17 people
- Sponsor
- Össur Iceland ehf
Other and Unspecified Complications of Amputation Stump
Comparative Outcomes Assessment of the C-Leg With a New Knee Prosthesis
The purpose of this study is to determine if transfemoral amputees of varied etiology will demonstrate increased function, safety and quality of life following accommodation with a new knee prosthesis as compared to their former…
- Trial name
- NCT01473992
- Testing
- Otto Bock C-Leg, Otto Bock Genium
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Jason Highsmith
Knee Osteoarthritis
A Prospective Study to Evaluate the iTotal Knee and iPoly XE Tibial Inserts
This study is designed to evaluate the clinical outcomes of subjects who have recently undergone surgery with the iTotal® Cruciate Retaining (CR) Total Knee Replacement System (KRS) who have also had iPoly XE Tibial Inserts…
- Trial name
- NCT03289754
- Testing
- iPoly XE tibial insert with ConforMIS iTotal KRS
- Where
- Germany
- Volunteers
- 52 people
- Sponsor
- Restor3D
Arthroplasty, Replacement, Knee
Polyethylene Wear Study on the Triathlon Total Knee Prosthesis
Comparison of conventional UHMWPE (ultra-high-molecular-weight polyethylene) with highly cross-linked polyethylene (X3) in a condylar stabilizing (CS) fixed bearing total knee prosthesis by means of RSA and clinical evaluation.
- Trial name
- X3vsN2Vac (NCT02525588)
- Testing
- Triathlon CS fixed bearing total knee prosthesis
- Where
- Netherlands
- Volunteers
- 100 people
- Sponsor
- Stryker Orthopaedics
Arthritis, Osteoarthritis, Knee
Switching Drug Therapy for the Prevention of Blood Clot Formation From Enoxaparin to Rivaroxaban After Orthopedic Surgery for Either Total Hip or Total Knee Replacement
The study will describe the short-term effects the study drug, rivaroxaban, has on the body when a patient is switched from enoxaparin injection (by needle) to oral rivaroxaban (by mouth) for the prevention of blood clotting in…
- Conditions
- Arthritis, Osteoarthritis, Knee, Osteoarthritis, Hip, Thromboembolism
- Trial name
- NCT01094886
- Testing
- Rivaroxaban
- Where
- 5 sites in United States
- Volunteers
- 56 people
- Sponsor
- Ortho-McNeil Janssen Scientific Affairs, LLC
Amputation, Amputation; Traumatic, Leg, Lower
Clinical Outcomes With Passive MPKs vs. Powered Prosthetic Knees
The goal of this proposed project is to gather community-based data from the K4-level Transfemoral Amputee (TFA) population to aid in evidence-based prescription of powered prosthetic knees (i.e., choosing the right device to…
- Conditions
- Amputation, Amputation; Traumatic, Leg, Lower, Limb; Absence, Congenital, Lower, Prosthesis User
- Trial name
- NCT05267639
- Testing
- Power Knee
- Where
- 2 sites in United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Liberating Technologies, Inc.
Osteoarthritis
Range of Motion of Standard and High-Flexion Posterior Cruciate Retaining Total Knee Prostheses
The purpose of this prospective, randomized study was to compare pain, functional outcome and ranges of motion of the knees in patients receiving either a standard posterior cruciate-retaining or a high-flexion posterior…
- Trial name
- NCT00837447
- Testing
- Total knee replacement with NexGen CR knee prosthesis, Total knee replacement(TKR) with Nexgen CR-flex
- Volunteers
- 54 people
- Sponsor
- Ewha Womans University
Prosthesis-related Infections, Wound Complications
Evaluation of Wound Management With Negative Pressure Dressing Versus Standard Dressing After Revision Arthroplasty.
The purpose of this study is to determine the efficacy of a negative pressure wound therapy (NPWT) system after revision total knee and hip arthroplasty in patients at high risk for infection.
- Conditions
- Prosthesis-related Infections, Wound Complications, Joint Diseases, Musculoskeletal Diseases
- Trial name
- NCT02127281
- Testing
- Prevena
- Where
- United States
- Volunteers
- 160 people
- Sponsor
- The Cleveland Clinic
Total Knee Arthroplasty
Effect of Low Dose Corticosteroids on Perioperative Markers of Thrombosis and Fibrinolysis in Total Knee Arthroplasty
One postoperative complication following unilateral or bilateral total knee arthroplasty is thrombosis (blood clot formation). In this prospective, double-blinded randomized controlled clinical trial, researchers are…
- Trial name
- NCT01815918
- Testing
- Hydrocortisone
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- Hospital for Special Surgery, New York
Lower Extremity Amputation
Adherence and Perspiration While Wearing Lower Limb Prostheses
Individuals with lower limb amputation often complain about uncomfortable residual limb skin temperatures and the accumulation of sweat inside their prostheses.
- Trial name
- NCT03900845
- Testing
- Dynamic Air Exchange - Rising Edge Design (DAE-RED), Perforated elastomeric liner, As-prescribed prosthesis
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Seattle Institute for Biomedical and Clinical Research
Osteoarthritis
Study Comparing Fit of the iTotal Versus Standard Total Knee Implants
This study compares intraoperative fit of the patient-specific iTotal knee replacement to other standard knee replacement implants
- Trial name
- NCT01861028
- Where
- United States
- Volunteers
- 44 people
- Sponsor
- Restor3D
Knee Prosthesis, Knee Replacement Arthroplasty
Mechanics Analysis of Patients Having a Sigma Mobile Bearing TKA
Utilize previously developed mathematical model to determine in vivo knee mechanics (kinematics, forces, stresses, areas and sound) for subjects having a Sigma Posterior Stabilizing (PS) mobile bearing (MB) total knee…
- Trial name
- Sigma MB TKA (NCT01714492)
- Testing
- Sigma Posterior Stabilizing Rotating Platform TKA Beaded Poly
- Where
- 3 sites in United States
- Volunteers
- 8 people
- Sponsor
- The University of Tennessee, Knoxville
Knee Prosthesis, Knee Arthroplasty
Comparison of Kinematics for Subjects Implanted With a PFC Sigma Rotating Platform or Fixed Bearing TC3 Prosthesis
The objectives of this study are four-fold: 1. To determine the three-dimensional, in vivo kinematics for subjects having either a fixed- or mobile-bearing Press Fit Condylar (PFC) Sigma Total Condylar III Prosthesis, comparing…
- Trial name
- PFC & TC3 (NCT01290640)
- Testing
- DePuy fixed-bearing Total Condylar III (TC3) TKA, DePuy PFC Rotating Platform TC3 TKA
- Where
- 3 sites in United States
- Volunteers
- 22 people
- Sponsor
- The University of Tennessee, Knoxville