How is cervical vertebra sudden ache unable to move to return a responsibility

Cervical spine sudden pain can not move, common cause is cervical spine facet joint synovitis, when the patient catch cold, affected, joint capsule relaxation, facet joint subluxation, synovitis, facet joint shows strangulation, causing cervical spine sudden pain, can not move, commonly known as stiff neck. There are atlantoaxial subluxation, more common is caused by upper respiratory tract infection in children.