To investigate the clinical effect of selected-peripheral-neurotomy under electromyography monitoring in the treatment of spastic cerebral palsy.

Sixty five patients with spastic cerebral palsy who underwent selected-peripheral-neurotomy surgery in Department of Neurosurgery of Aviation General Hospital from January 2018 to June 2020 were included. Surface electromyography (sEMG) and modified Ashworth scale (MAS) were used to evaluate the target spastic muscle group before operation. The nerve branches of target spastic muscle group were narrowed during operation. sEMG, MAS grading, kinematic parameters (walking speed, frequency, step length, step width, foot angle), ADL score and Fugl-Meyer motor function score were used to evaluate the patients’ living ability and motor function.

A total of 193 peripheral nerve tracts were constricted in 65 patients with spastic cerebral palsy. The decrease rate of muscle tension was 100% in perioperative period and the normal rate of muscle tension was 92.75% in postoperative period. There was significant difference in SEMG before and 7 d after operation (P<0.05). Compared with preoperative, walking function, activities of daily living and motor function were significantly improved in perioperative period (P<0.05). The incidence of decreased muscle strength of quadriceps femoris during perioperative period was 16.67% (2/12). Muscle strength recovered during follow-up.

Selected-peripheral-neurotomy constriction was used to treat spastic cerebral palsy. Before operation, sEMG was used to determine the target muscle group. During operation, electromyography monitoring and stimulating electromyography data quantitative guidance were used. The nerve branches of the spastic muscles in the target muscle group were given narrowing operation under the microscope. These were effective surgical methods to reduce muscle tension, and had obvious effect on improving walking, motor ability and activities of daily living of patients with spastic cerebral palsy.