For children with spastic cerebral palsy, a scientific and comprehensive treatment combining rehabilitation training and surgery should be the main focus: early on, rehabilitation training is the main focus, and active parental training of the child can promote the improvement of the ability to adapt to the environment. If the spastic muscles are difficult to synchronize with the growth of bones as the child grows older, various progressive deformities will form. Early surgical intervention is also necessary to avoid the development of deformities that may lead to excessive disability. At present, we recommend that children with spastic cerebral palsy who are eligible for surgery receive surgical treatment to relieve spasticity between the ages of 2.5 and 6, and orthopedic surgery must be performed simultaneously or in stages with adequate relief of spasticity; otherwise, the possibility of recurrence, poor long-term outcome, and failure of surgery are inevitable. In the treatment of spastic cerebral palsy, surgery (phase I surgery versus phase II surgery) plays an extremely important role. Objectively speaking, rehabilitation training is the main means of treatment for pediatric cerebral palsy, but for the spastic type, which accounts for more than 70% of all cerebral palsy patients, the results are not very satisfactory regardless of the rehabilitation training method. As we know, spastic cerebral palsy is mainly characterized by muscle stiffness during movement, difficulty in active or passive activities, delayed development of head and neck control, and a trunk that is flexed forward and cannot be fully extended when sitting with legs extended. To address the problem of unsatisfactory results of purely implementing rehabilitation training for such children with cerebral palsy, we have developed functional selective posterior spinal nerve root partial resection (FSPR, also known as stage I cerebral palsy surgery) to treat limb spasticity, which decreases muscle tone by reflecting arc decompensation, and then causes spasticity to be released, and the effect of rehabilitation is very obvious after the necessary rehabilitation training. Among the nerve loops involved in limb spasticity, the la fibers in the posterior nerve root play a major role and are the “root cause” of limb spasticity. In other words, the root cause of spastic cerebral palsy muscle spasm is the abnormality of the posterior spinal nerve root, and the culprit of this abnormality is the abnormality of the spinal nerve fibers (la fibers), which causes increased muscle tone, stiffness, spastic paralysis of the limb, motor dysfunction, and finally physical disability. Therefore, in the treatment of spastic cerebral palsy, cutting the la fibers is the key, and currently FSPR for cerebral palsy is the only correct and effective method that can cut the la fibers and release the spasticity. We first treat the spasticity by FSPR surgery to stabilize and effectively release the spasticity, and then determine whether we need to perform the second stage of cerebral palsy surgery (CPMMA surgery, also known as cerebral palsy muscle tone adjustment) for limb correction surgery treatment. In some patients with rigid cerebral palsy, because the spasticity is particularly severe, the internal tendon needs to be partially severed first to facilitate rehabilitation training and create conditions for reoperation, and simple orthopedics will recur in most patients. It is important to emphasize that before orthopedic surgery is performed on a child, a systematic and comprehensive examination is required to determine the best treatment plan: before surgery, the child is repeatedly examined and analyzed in the lying, standing and squatting positions, and if the child can walk, the gait and joint deformities such as slow walking and fast walking are repeatedly examined. At the same time, we should develop reasonable and personalized surgical methods according to the changes and severity of different limbs, parts, joints, and muscles of the child, so as to avoid insufficient or overcorrection. Lastly, it should be noted that clinically, the muscle tone of children with spastic cerebral palsy is significantly higher than that of similar normal children. When the child is exposed to various stimuli (such as exertion, excitement, loss of balance, fear, or anxiety), this can further increase muscle tone. Children with more severe spasticity have significantly reduced limb movements and have stereotyped, awkward movements, often with their heads not in a central position, but often turned to the side or tilted back. In addition, the hands and shoulders of spastic cerebral palsy patients are rotated, flexed or extended downward; the hands often form a fist, with the thumb against the palm and the other four fingers holding the thumb, with the back of the hand facing forward and the palm downward; the spine often appears to varying degrees of kyphosis or scoliosis, and the hip joint often cannot be fully extended and remains somewhat flexed; the lower extremities are often crossed, and the Achilles tendon is tense, causing the soles of the feet to be unable to be flattened when standing, and only the toes can be placed on the ground.