STUDY DESIGN Computerized tomographic study of human cadavers undergoing traction and flexion-extension bending. OBJECTIVES To investigate the feasibility of using computerized tomography techniques to quantify relative vertebral motions of the cervical spine and cervicothoracic junction (CTJ), and to define normative CTJ kinematics. SUMMARY OF BACKGROUND DATA Despite developing an understa...

BACKGROUND AND PURPOSE Analysis of the prevertebral soft tissue (PVST) is helpful in detecting osseous and ligamentous injuries of the cervical spine. Because the standard of care has shifted from radiographs to multidetector CT (MDCT), a re-examination of the PVST on MDCT images is needed to establish normal values for thickness appropriate for this imaging technique. MATERIALS AND METHODS T...

A 66-year-old man with a history of ankylosing spondylitis presented to the emergency department as a trauma activation after a fall backward onto his sacrum from the bottom rung of a ladder. He initially complained of neck pain. On physical examination, midline lower cervical spine tenderness to palpation was present, but careful neurologic examination revealed no deficits. A CT scan of the ce...

A comprehensive, geometrically accurate, nonlinear C0-C7 FE model of head and cervical spine based on the actual geometry of a human cadaver specimen was developed. The motions of each cervical vertebral level under pure moment loading of 1.0 Nm applied incrementally on the skull to simulate the movements of the head and cervical spine under flexion, tension, axial rotation and lateral bending ...

BACKGROUND Although upper cervical and upper thoracic spine mobilization plus therapeutic exercises are common interventions for the management of forward head posture (FHP), no study has directly compared the effectiveness of cervical spine mobilization and stabilization exercise with that of thoracic spine mobilization and mobility exercise in individuals with FHP. METHODS Thirty-two partic...

A 59-year-old man with a history of chronic ankylosing spondylitis for many years, developed neck pain and left cervico-brachial neuralgia following a road traffic accident sustained one week before. Plain radiographs of cervical spine were initially misinterpreted. On examination, he had severe neck pain on mobilization without any neurological deficits. Delayed cervical computed tomography sc...