Spastic cerebral palsy, hemiplegia, post-traumatic brain injury, mostly manifested as anterior rotation of the forearm (i.e., palm facing downward), severe flexion of the wrist to the ulnar side (pinky side), and inward retraction of the thumb (i.e., the muzzle of the tiger can not be opened) deformity. Due to the inability of the forearm and hand to rotate backward (i.e., the forearm and hand can not be actively flicked to face upward) coupled with a severe tilt on the ulnar side of the hand, patients have lost the function of hand holding objects (such as eating, washing, and writing) and the ability of taking care of their own lives (such as tying a belt, using paper to wipe the anus after bowel movements), which causes great inconvenience to the patients in their lives. This is due to muscle and joint spasms, which cause great inconvenience to the patient’s life. Is there a cure? The answer is yes, there is! Cerebral palsy upper limb and hand spasticity deformity state of the patient after rehabilitation training spasticity state still does not improve, the age of 6 years old and above, good IQ, there is voluntary control of muscle groups, sensory changes are not obvious, can be used in the median nerve, the ulnar nerve muscle branch and tendon shift and other surgical treatments, this method is also applicable to adult hemiplegia and traumatic brain injury patients. Surgical methods: 1. Surgery to relieve wrist ptosis and tilt of the hand to the side of the little finger: (1) transplanting the tendon of ulnar flexor carpi ulnaris muscle to the tendon of radial extensor carpi radialis longus and shortus muscle; (2) lengthening of flexor carpi radialis muscle; (2) surgery to relieve anterior rotator antebrachial spasticity deformity of the forearm: (1) transposition of the stop of the anterior rotator antebrachialis muscle; (2) relaxation of the anterior rotator antebrachialis and flexor digitorum longus muscles; (3) surgery to relieve the spasticity of thumb retractor deformity: (1) relaxation of the pectus excavatum muscle (i.e., opening the big tiger’s mouth). (i.e. opening the big tiger’s mouth) (2) bone grafting between 1 and 2 metacarpals (3) selective median nerve muscle branch surgery 4. Surgery to relieve spasticity deformity of finger curvature: selective ulnar nerve muscle branch surgery