Application of Targeted Reinnervation for People With Transradial Amputation
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT02349035|
Recruitment Status : Active, not recruiting
First Posted : January 28, 2015
Last Update Posted : January 25, 2021
|Condition or disease||Intervention/treatment||Phase|
|Amputation; Traumatic, Hand, and Wrist Amputation; Traumatic, Hand, at Wrist Level||Device: Compare control of multifunction transradial prosthesis Procedure: Perform TMR surgery and evaluate transradial TMR pattern recognition control of multifunctional prostheses.||Not Applicable|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||10 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Primary Purpose:||Basic Science|
|Official Title:||Application of Targeted Reinnervation for People With Transradial Amputation|
|Study Start Date :||December 2014|
|Actual Primary Completion Date :||December 2020|
|Estimated Study Completion Date :||January 2021|
Experimental: TMR surgery to evaluate pattern recognition control
Perform Targeted Muscle Reinnervation (TMR) surgery and evaluate transradial TMR pattern recognition control of multifunctional prostheses.
Device: Compare control of multifunction transradial prosthesis
Subjects practice control methods using a VR system. EMG data and virtual games are used and provide data to assess control methods without prosthesis. Subjects are fit with commercially available multifunctional hand system. They receive 1-3 days of training for conventional or pattern recognition control. They return home for an 8 week trial. They use the prosthesis for 2 hours a day across the 8 week trial. They keep a log of use and check with a therapist about usage and performance. After the 8 week trial, data from the prosthesis is downloaded. The subject will complete 1-3 days of outcomes testing. They perform a series of tests and data is recorded. The subject will repeat the 1-3 days of training, 8 week home trial, and 1-3 days of outcomes testing with either type of control.
Procedure: Perform TMR surgery and evaluate transradial TMR pattern recognition control of multifunctional prostheses.
Subject has Targeted Muscle Reinnervation surgery. The surgery transfers median nerve to flexor digitorum superficialis muscle and ulnar nerve to flexor carpi ulnaris muscle. Two weeks after surgery, exercises start for muscle recovery. Then return to prosthesis from Phase 1 for 6 months. If they have pattern recognition control, usage and performance will be tracked for 6 months. If they return to conventional control, they will not complete tests, track usage, or performance. Six months after surgery, they return to pattern recognition control. Receive 1-3 days of training. Take prosthesis home for 8 week trial. Log use of device, note issues, and follow up with therapist. After home trial, 1-3 days of outcomes testing are completed and usage data downloaded. Continue using their prostheses for an additional 3-4 months. At 12 months after surgery, a final round of 1-3 days of testing and data are downloaded.
- Improve pattern recognition control of multifunction prostheses for transradial amputees. [ Time Frame: 15 months from initial enrollment ]Improved control of prosthesis as seen through functional use improvements.
- Modified Box and Blocks [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]Timed task to assess prosthetic control.
- Clothespin Relocation Test [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]Timed task to assess prosthetic control.
- ACMC [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]Assessment of capacity for myoelectric prosthetic control
- Jebsen Test of Hand Function [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]7 part timed diagnostic test to determine the level of hand function.
- Southampton Hand Assessment Procedure (SHAP) [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]The test consists of the manipulation of a series of both lightweight and heavyweight abstract objects. The procedure is designed to provide a score of functionality.
- OPUS-UEFS [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]An instrument that evaluates the activity limitations, quality of life, and patient satisfaction with services and devices.
- Activities Measure for Upper Limb Amputees (AM-ULA) [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]A clinician rated measure of an upper limb amputee's performance of daily functional activities using a prosthesis.
- TAC TEST/ Motion Test [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]Virtual reality testing of classification accuracy, motion completion rate, motion completion time and path efficiency.
- PSFS [ Time Frame: At 2 and 4 months pre-op; At 6 and 10 months post-op ]Used to assess functional ability to complete specific activities
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02349035
|United States, Illinois|
|Rehabilitation Institute of Chicago|
|Chicago, Illinois, United States, 60611|
|United States, Maryland|
|Walter Reed National Military Medical Center|
|Bethesda, Maryland, United States, 20889|
|United States, Texas|
|San Antonio Military Medical Center|
|Fort Sam Houston, Texas, United States, 78234|
|Principal Investigator:||Todd A Kuiken, MD, PhD||Shirley Ryan AbilityLab|