Spastic squint, as the name implies, is a disorder in which involuntary spasms of the neck muscles occur, thus causing a lopsided neck, resulting in a continuous head and neck deflection that cannot be squared, or a painful, spastic neck muscle after being squared. In fact, spastic squint is defined as an organic disorder of the extrapyramidal system characterized by twisting or clonic tilting of the neck muscles caused by involuntary contraction of the neck muscles. The incidence is low and there is no significant difference between men and women. The onset of spastic squint requires a slow aggravation process. Patients often first feel that the neck muscles are stiff, trembling or inflexible, and then gradually occur in a direction of continuous deviation, which is manifested in the involuntary pulling of the head by the neck muscles, or involuntary head shaking. The medical classification is more complicated, mainly divided into: rotation type: the head rotates spasmodically or clonically around the longitudinal axis of the body to one side; backward tilt type: the patient’s head tilts back spasmodically or clonically for the reason; forward flexion type: the patient’s head does spasmodic or clonically forward flexion to the chest; side contraction type: other patients’ head deviates from the longitudinal axis to the left or right. The overall treatment effect is not very optimistic. Throughout the history of medicine, the methods of treating this disease are: 1. A-type botulinum toxin injection: the most simple conservative treatment method, through the toxic effect of botulinum toxin in local injection to produce excitatory conduction disorders of muscle nerve joints, resulting in temporary muscle-nerve separation, thus relieving the nerve to muscle This can alleviate the overexcitation of the nerves on the muscles and relieve the spasticity of the muscles, so that the muscles can be relaxed and the symptoms of neck spasm can be relieved. The disadvantage of botulinum toxin injection is that it is easy to produce allergic reactions, and some patients will also have toxic symptoms. The neuromuscular blocking effect of botulinum toxin is usually in 2~3 months, because the regeneration process of peripheral nerves often takes such a long time, that is, after such a long time, it is often necessary to inject again, and the efficacy of botulinum toxin injection will be greatly reduced after 3 times. Patients often choose this method first, but eventually they will not be able to continue treatment because of its gradually declining efficacy and increasingly serious side effects. 2.Medication: Internal treatment, the main drugs used are muscle relaxants, sedatives, dopamine receptor blockers, short-term dopamine exclusion agents, anticholinergic agents, GABAergic drugs, etc. The effects of drugs are often limited, and some patients experience side effects such as drowsiness and poor mental health, often as an adjunct to surgical treatment. 3, surgical treatment: surgical treatment has a long history, from the 19th century cervical muscle group cut + tightening, to the later cervical nerve (paracervical nerve + cervical plexus nerve) cut + cervical muscle group cut + tightening, to the main preferred paracervical nerve nerve decompression + cervical nerve root super-selective cut, the surgical trauma has become smaller and smaller, the side effects of surgery are becoming less and less common, and at the same time the efficacy of surgery The side effects of the surgery are becoming less and less common, and at the same time the efficacy of the surgery is getting higher. Among all the treatment methods, advanced surgical treatment has gradually become the preferred method of treatment that any responsible doctor must introduce to every person with spastic squint. The neck muscle group severing + tightening surgery is mainly to cut off the spastic neck muscle group and operate bilaterally to get a consistent appearance, but it does not radically reduce the excitability of the nerve and the surgery recurrence rate is high. The complete severing of the cervical nerve machine cervical muscle groups on the basis of the former surgical method reduces the possibility of postoperative recurrence, but the postoperative patients are extremely prone to head movement, and the patients are always in a low position after surgery, unable to turn their heads on their own, which also affects the patients’ life. At present, our department mainly adopts the individualized treatment of “paraneoplastic nerve decompression + super-selective cervical nerve root dissection” or “deep brain electrical stimulation”. During surgery, neurophysiological testing is performed to clarify the responsible nerve to the greatest extent, and intraoperative decompression of the paranerves and super-selective severing of the cervical nerve roots are performed to ensure the effectiveness of the surgery and to preserve the original normal function of the neck muscles to the greatest extent, achieving a more satisfactory treatment effect with an overall efficiency of over 90%. It should be noted that surgical treatment does not immediately improve the symptoms of spastic squint, and patients need to perform conscious functional exercises after surgery to promote the recovery of the normal function of the neck muscles. At present, the surgical treatment of functional neurosurgical diseases has become a special specialty. Like facial spasm, trigeminal neuralgia and glossopharyngeal neuralgia, the treatment effect of spastic squint is getting better and better, and the complication and recurrence rate after surgery is also getting smaller and smaller, and we believe that through our efforts, the eradication of spastic squint, a persistent disease of functional neurosurgery, will be fully realized in the near future.