The superior and inferior articular processes of the cervical spine are oriented obliquely on sagittal projection, with complementary surfaces on adjacent segments. Along with the intervening bone, these articular processes mix to kind lateral plenty at every degree that are parallelogram-shaped in sagittal cross-section. Adjacent lateral plenty within the subaxial cervical spine are in close apposition in order that in aggregate they form a flexible, cylindrical column of bone dorsolateral to the vertebral our bodies. This pillar-like structure affords axial load-bearing capacity to the dorsal vertebral arches. The oblique configuration of articular surfaces imparts a shingle effect to the lateral plenty and allows for flexion and extension while limiting translation, affording osseous neuroprotection for the enveloped cervical spinal cord and nerve roots (see Fig. 31-6). The lateral mass serves as a standard anchor level for instrumentation, however an consciousness of adjacent neurovascular buildings is crucial for safe placement of lateral mass screws that avoid the vertebral artery and cervical nerve roots. A rostral screw trajectory is protective of the exiting nerve root, whereas a lateral trajectory protects the vertebral artery (Figs. 31-eleven to 31-13).
Since the spine will probably be aligned in its natural method, the very best pillow for military neck will ease pressure in the neck. In time, a sleeping pillow and/or 首 整体 a neck roll pillow will assist the spine regain its natural curvature once more, but you need to be aware that it won’t work alone. It is best to combine it with a specific exercise/stretching routine, traction as well as knowledge of appropriate neck posture habits if you’d like to repair a navy neck.
Forward FLEXION: Standing or sitting, place one arm behind you, within the «small» of your back. Take the alternative hand and place it on top of your head. Slowly pull your head and chin downwards, in the direction of the middle line of your chest (Sternum). Stay in that place for 15-30 seconds. Repeat this movement however change the route of pull so that your chin is directed in direction of your breast or armpit. In each positions, pull until you’re feeling a «stretch» discomfort in your neck on the side of the arm behind your again. Hold that place for 15 — 30 seconds. Don’t pull too laborious to cause sharp pain. An excessive amount of ache could cause the physique to go into a «defense» mode and try to «protect» the area. This response could make it almost unimaginable to stretch that space. Too aggressive of a stretch could trigger injury to the muscle tissue.