Wow, that looks a bit uncomfortable. I don't have any experience with it except I had to take my Dad in for the surgery on both wrists about 6 years ago and by the time had finally agreed to have the surgery he had already lost about 75% of the muscle at the base of his thumb on one hand and at least 50% on the other. His CT came from years of being a TV and appliance repairman and working with screwdrivers and those types of tools for so long.

Good luck with it.