Uncovertebral articulations (also known as joints of Luschka) are present in the C3 to C7 spinal segments, which are located on the posterolateral border of the intervertebral disc and in the anteromedial portion of the intervertebral foramen. The nerve roots passing through the intervertebral foraminal in these areas are C5, C6, and C7. The most common locations that exhibit degenerative changes are between C4 and C7. The articulations between the second and seventh cervical vertebrae allow for approximately two-thirds of flexion and extension, 50 percent of rotation, and 50 percent of lateral bending. The articulation between the first and second cervical vertebrae (the atlantoaxial joint) allows for 50 percent of rotational range of motion. The articulation between the occiput and the first cervical vertebra (the atlantooccipital joint) allows for approximately one-third of flexion and extension and one-half of lateral bending of the neck. Anatomy of the cervical spine – The cervical spine is comprised of seven vertebrae ( figure 1).(See "Management of non-radicular neck pain in adults".)ĪNATOMY - Understanding the cervical spine and regional spinal cord anatomy is important for the evaluation of the patient with neck pain. Treatment of neck pain is also discussed separately.
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