In one exemplary embodiment of the present invention, an adjustable joint actuator assembly for a medical assist device is provided. The assembly includes a support arm extending along a longitudinal axis, a gearbox rotatably coupled to the support arm about the longitudinal axis and slidable along the longitudinal axis, and a locking mechanism inserted over a portion of the support arm and the gearbox to facilitate preventing movement of the gearbox relative to the support arm along the longitudinal axis. The locking mechanism is configured for removal to enable movement of the gearbox relative to the support arm along the longitudinal axis.
