Clinical trials: Prosthesis
Retinitis Pigmentosa, Visual Impairment
Environmental Localization Mapping and Guidance for Visual Prosthesis Users
This study is driven by the hypothesis that independent navigation by blind users of visual prosthetic devices can be greatly aided by use of an autonomous navigational aid that provides information about the environment and…
- Conditions
- Retinitis Pigmentosa, Visual Impairment, Visual Prosthesis
- Trial name
- SLAM (NCT04359108)
- Testing
- Navigation system mode: Argus Vision, Navigation system mode: Depth Vision, Navigation system mode: Depth Vision with Haptic / Audio
- Where
- 2 sites in United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Postoperative Wound Infection Deep Incisional Surgical Site, Prosthesis and Implants
Effect of Photodynamic Therapy on Skin Microbiome. Single Center Study (PHOMIC-II)
The overarching aim of this research project is to prevent orthopedic implant-associated infections. This study aims to investigate if PDT has an effect on bacterial skin colonization in order to improve skin antisepsis…
- Conditions
- Postoperative Wound Infection Deep Incisional Surgical Site, Prosthesis and Implants, Surgical Site Infection, Prosthetic Joint Infection
- Trial name
- NCT04618276
- Testing
- Photodynamic Therapy
- Where
- Switzerland
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Dental Crown, Prosthesis
Basic Study of Fabricating Biomorphic Crowns
The purpose of this study is to compare among different designs of the occlusal surface of artificial crowns, trying to determine a guidance of fabricating artificial crowns with better mimesis of the original tooth crown in…
- Trial name
- NCT02609178
- Testing
- FGP, AVR
- Where
- China
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Air Force Military Medical University, China
Jaw, Edentulous, Dental Implant
An Implant With an Acid-etched Fixture Surface and Internal-hex Collar May Achieve Greater Osseointegration.
Brånemark System® dental implant osseointegration was introduced clinically in 1965 as a novel approach to the replacement of missing teeth.
- Trial name
- NCT01641198
- Testing
- Configuration 1, Configuration 2, Configuration 3
- Where
- Canada
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Université de Montréal
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
Prosthesis User
Biomechanical Assessment of Gait in Lower-Extremity-Amputees
This study is investigating the influence of several simulated real life conditions on the symmetry of gait with trans-tibial prostheses Hypotheses: It is hypothesized that the observable differences in gait pattern between…
- Trial name
- NCT01332123
- Testing
- Alignment perturbations
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Milwaukee
Retinitis Pigmentosa
Object Finder for a Retinal Prosthesis
The proposed project seeks to provide object recognition as a feature in a retinal implant system. Participants will be able to direct an object recognition application to find a desired object in the field of view of the…
- Trial name
- NCT04319809
- Testing
- Object recognition subsystem
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Minnesota HealthSolutions
Hypothermia
Observational Examination of Thermoregulation in Total Joint Arthroplasty
Total joint patients have poor outcomes with infection since they are having permanent hardware implanted. Infection prevention in this group is therefore critical and a major source of discussion in both the orthopedic and…
- Trial name
- NCT02225743
- Testing
- Observation Of Temperature
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Amputation, Diabetes
Vacuum Suspension: Effects on Tissue Oxygenation, Activity and Fit
The fit of the residual limb within a prosthetic socket is a primary concern for many amputees. A poor fit can lead to skin irritation, tissue breakdown, and pain.
- Conditions
- Amputation, Diabetes, Leg Injuries, Traumatic Amputations
- Trial name
- NCT00117793
- Testing
- Total Surface Bearing Suction Socket, Vacuum assisted socket system
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Amputation
Agonist-Antagonist Myoneural Interface for Functional Limb Restoration After Transtibial Amputation
This study involves the functional testing of a new lower extremity prosthesis by healthy, active participants with fully healed transtibial (below knee) amputations.
- Trial name
- NCT03913273
- Testing
- AMI transtibial amputation, Standard transtibial amputation
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Massachusetts Institute of Technology
Ankle Arthroplasty, Prosthesis User
3D X-ray Motion Analysis of Ankle-foot Motion After Total Ankle Arthroplasty
Patients who have had a total ankle joint replacement surgery typically have limited movement in their ankles possibly due to the fact that commonly used ankle joint prosthetic devices only allow limited axes of motion.
- Conditions
- Ankle Arthroplasty, Prosthesis User, Joint Disease
- Trial name
- NCT03575975
- Testing
- Total Ankle Replacement Prosthesis
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Georgia Institute of Technology
Diabetes Mellitus, Leg Injuries
Prosthetic Components and Stability in Amputee Gait
The biomechanics of changing direction while walking has been largely neglected despite its relevancy to functional mobility. In addition, an increased risk of injury can be associated with turning due to a decrease in stability.
- Conditions
- Diabetes Mellitus, Leg Injuries, Traumatic Amputation
- Trial name
- NCT00167778
- Testing
- Transverse plane rotation adaptor pylon, Rigid pylon
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Zirconia Based Fixed Dental Prostheses
Zirconia Based Fixed Dental Prostheses
The objective of this prospective clinical study is to investigate the differences in the complication rates between tooth- and implant- supported zirconia based fixed dental prostheses (FDPs) with at least 4 units.
- Trial name
- NCT02220764
- Testing
- Teeth abutment, Implant abutments
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Technische Universität Dresden
Erectile Dysfunction
Randomized Trial of Ropivacaine & Bupivacaine for Inflatable Penile Prosthesis
The purpose of this research is to determine the effects of penile ring block for local anesthesia with liposomal bupivacaine vs ropivacaine mixture in subjects undergoing surgery for Penile Prosthesis Placement.
- Trial name
- ROVEX-IPP (NCT04801368)
- Testing
- Randomization of two local anesthetics.
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Amputation, Amputation; Traumatic, Hand
Dexterous Partial Hand Prosthesis Outcomes
Liberating Technologies, Inc. (LTI) has developed a dexterous prosthetic fingertip that will be fit onto an i-Digits™ partial hand prosthesis and allow for an additional fine grasp.
- Conditions
- Amputation, Amputation; Traumatic, Hand, Limb; Absence, Congenital, Upper, Prosthesis User
- Trial name
- NCT05038566
- Testing
- Pointdexter
- Where
- 2 sites in United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Liberating Technologies, Inc.
Hemiplegia
Neural Prostheses and Gait Performance: Model-Based Strategies
The purpose of this research is to find the optimal patterns of functional electrical stimulation (FES) of muscles in the lower legs that will improve walking ability in those who have had a stroke and at the same time ensure…
- Trial name
- NCT00991406
- Testing
- FES
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Upper Limb Amputation
Functional Performance of Voluntary Opening and Closing Body Powered Prostheses
This study will compare the functional performance of voluntary opening (VO) and voluntary closing (VC) body powered prostheses.
- Trial name
- NCT02136238
- Testing
- Hosmer 5XA voluntary opening hook, TRS Grip 3 voluntary closing hook
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University of South Florida
Amputation, Elderly
Falls in Older Persons With Limb Loss
Lower limb prosthesis users are known to be at a substantially increased fall risk compared to able-bodied individuals. The interaction between increased fall risk, reduced balance confidence and high prevalence of a fear of…
- Trial name
- FOPLL (NCT03670004)
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Dizziness Chronic
Pilot Project on External Vestibular Prosthesis in Chronic Subjective Dizziness
Researchers are gathering information on the safety and effectiveness of a new device called the BalanceBelt.
- Trial name
- NCT02048670
- Testing
- Balance Belt
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Amputation
Does Walking Performance Improve When Veterans With Leg Amputations Are Given Visual Feedback?
Previous studies suggest that Veterans with below the knee amputation using passive-elastic or powered prostheses have impaired physical function, which could increase the risk of osteoarthritis, leg/back pain, and…
- Trial name
- NCT03974945
- Testing
- Passive-elastic prosthetic foot, Powered ankle-foot prosthesis
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development