Cervical collar (cervical brace) includes temporary made collar and various special cervical braces made of cardboard, leather and plaster, etc. It is a very common appliance in the treatment of neck injury, fracture dislocation, deformity, cervical disc herniation and cervical spondylosis. Its role is to protect the cervical spine, restrict the movement of the cervical spine, reduce the traumatic reaction caused by the abrasion of the spinal cord, nerve roots and joint surfaces, promote the decreasing of edema and the absorption of inflammation, and can be used to correct the deformity of the cervical spine, prevent the recurrence of dislocation and the compression and dislocation of the implant block, thus playing an important role in promoting recovery, consolidating the therapeutic effect and preventing recurrence. 1.Application scope of cervical enclosures (cervical brace) (1)Acute attack period of various types of cervical spondylosis. (2)After minimally invasive surgery for cervical disc herniation. (3)Those who are prone to recurrence after cervical dislocation manipulation treatment. (4)Cervical deformity, such as correction of sloping neck in young children (cervical brace or plaster collar). (5) After open cervical spine surgery (plaster collar). (6) Cervical dislocation and fracture (mainly with cervical brace or plaster collar). 2, the production and use of ordinary collar ordinary collar refers to the cervical spondylosis, cervical disc herniation and cervical small joint disorder in the cardboard and other temporary aids, its method is simple, economic, comfortable, light weight, strong sweat absorption, and can be made into different shapes at any time according to the condition and the thickness and length of the neck, and therefore adaptable and effective. Cardboard or other appropriate items can be used to cut into appropriate shapes according to the characteristics of the specific patient’s neck and the need for treatment, first cut wider, and continue to trim if the trial is not suitable. After cutting and trial fit, the knitted cover or gauze is placed around the outside to make it soft without rubbing or pressing the skin. The knotted mouth can be fixed by pressing the button, knotted belt or surrounded by gauze. Use during the day and go down or relax the fixation at night. It should generally be applied continuously for 2-4 weeks after minimally invasive surgery. 3. Precautions (1) When wearing a neck brace, it should be loose and tight, so as not to cause obvious discomfort, and can be adjusted at any time. (2) For patients with cervical varicosities, the rear of the collar should not be too high. (3) The neck collar is usually worn for 1 to 3 weeks after minimally invasive surgery, and should not be worn for a long time to avoid muscle atrophy, joint stiffness and formation of dependence on the collar. If the collar is used for a long time, the sudden release often aggravates the symptoms. (4) The cervical spine is generally fixed in a neutral position.