Adjustable Collar, also known as aneck brace, is amedical device用来支持一个人的脖子。它也被使用emergency personnel对于那些患有创伤头或颈部伤害的人来说，^[1]并且可用于治疗慢性医疗条件。

每当人们有一个traumatic头部或颈部受伤，他们可能有一个cervical fracture. This makes them at high risk forspinal cord injury，这可能会被人的运动加剧，并且可能导致paralysis要么death. A common scenario for this injury would be a person suspected of havingwhiplashbecause of acar accident.^[2]In order to prevent further injury, such people may have a collar placed by medical professionals untilX-rays可以采取确定一个吗？cervical spine fractureexists.^[3]The cervical collar only stabilizes the top sevenvertebrae, C1 through C7. (Other immobilizing devices such as aKendrick Extrication Device要么a篮板can be used to stabilize the remainder of the spinal column.^[1])

不建议通过急救提供商常规使用颈部套环。^[4]

Cervical collars are also used therapeutically to help realign the spinal cord and relieve pain,^[5]although they are usually not worn for long periods of time.^[6]Another use of the cervical collar is forstrains,扭伤要么whiplash.^[2][3]If pain is persistent, the collar might be required to remain attached to help in the healing process.^[3][5]A person may also need a cervical collar, or may require a光环固定装置to support the neck during恢复after surgery such ascervical spinal fusion.