Transradial Amputation

The CYBORG Study is a first-in-human clinical investigation evaluating the safety and performance of the Phantom X System, an implantable electromyography (EMG) sensor array designed to provide control of upper-limb prostheses. The study will assess surgical feasibility, device function, signal quality, and the system's ability to support intuitive prosthetic control during functional tasks. Participants will undergo implantation of the Phantom X sensors and complete a series of in-clinic visits to assess functional performance of the Phantom X system. Patient-reported outcomes will also be collected at various timepoints.

This single-center, prospective, comparative study aims to compare hand function, quality of life, patient satisfaction, task completion time, fatigue, and compensatory elbow, shoulder, and cervical movements in individuals with transradial amputation or wrist disarticulation who use either standard myoelectric or bionic hand prostheses. The primary research questions are: 1. Are there differences in patient satisfaction, quality of life, and hand function between individuals using standard myoelectric and bionic hand prostheses? 2. Do individuals using standard myoelectric and bionic hand prostheses exhibit different kinematics in terms of compensatory shoulder, elbow, and neck movements? Could bionic hand prostheses with their diverse grasping capabilities lead to fewer compensatory movements compared to standard myoelectric hand prostheses? 3. Can fatigue induced by performing specific activities of daily living alter hand function and upper extremity-neck kinematics in individuals using either standard myoelectric or bionic hand prostheses? 4. Can cognitive and physical fatigue following activities of daily living lead to different levels of changes in hand function and upper extremity-neck kinematics in individuals using standard myoelectric and bionic hand prostheses?