The Thuasne ligament splint is designed to immobilize the right thumb. The adaptation of the Thuasne splint is morphological. It adapts easily to the anatomy of the thumb and is adjusted from the wrist. It is indicated to partially immobilize the right thumb, as well as to limit its amplitude due to rhizarthrosis, joint injuries, sprains and ligament injuries. Thuasne splints respect phalangeal mobility. As for its presentation, it is a special splint for the right hand with thumb support, black, with perforated neoprene foam to facilitate perspiration in the area. It also has two elastic straps: on the wrist and thumb for better adaptation and grip. Available in sizes S, M and L. A doctor's prescription is required.