'Whip-lash’ injury is caused due to

syn: acceleration injury, cervical sprain syndrome, soft tissue neck injury * it is an unconventional & inconsequential ligamentous injury of the cervical spine allegedly due to an extension injury following a rear-end collision in an RTA * clinical features: symptoms - upper neck pain becomes worse with movement - an occipital headache - neck stiffness - rarely vertigo, auditory or visual disturbance: sign - decreased range of movements - neck muscles spasm * investigation - x-ray usually normal. MRI helps to make a diagnosis * treatment - conservative