Neurosurgery
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Cervical spondylosis is the most common progressive disorder in the aging cervical spine. It results from the process of degeneration of the intervertebral discs and facet joints of the cervical spine. Biomechanically, the disc and the facets are the connecting structures between the vertebrae for the transmission of external forces. ⋯ The developmental process, together with the degenerative process, may cause mechanical pressure on the spinal cord at one or multiple levels. This pressure may produce direct neurological damage or ischemic changes and, thus, lead to spinal cord disturbances. A thorough understanding of the biomechanics, the pathology, the clinical presentation, the radiological evaluation, as well as the surgical indications of cervical spondylosis, is essential for the management of patients with cervical spondylosis.
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Cervical spondylosis is a result of degenerative changes of the cervical spine. Neurological symptoms of myelopathy result from the narrowing of the spinal canal, causing spinal cord compression. ⋯ Surgical decompression can be addressed from a ventral, dorsal, or combined approach. The authors discuss the technical aspects of the surgical decision making process regarding the decision to approach the spine from a ventral or dorsal orientation.
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Comparative Study
Subarachnoid hemorrhage treated with clipping: long-term effects on employment, relationships, personality, and mood.
Only one-third of patients regain functional independence after aneurysmal subarachnoid hemorrhage (SAH). Despite this recovery, many of these patients experience psychosocial problems. We assessed the long-term effects of SAH on employment, relationships, personality, and mood. ⋯ The long-term psychosocial effects of SAH are considerable, even in patients who regain functional independence. Treating physicians should be aware of these long-term effects of SAH when discussing prognosis and reintegration to work after initial recovery with patients and family.
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Clinical problems are often complex. Problems of great complexity are usually associated with a commensurately greater degree of difficulty with respect to the decision making process. This is most certainly true regarding the management of cervical spondylosis. ⋯ However, more often than realized, suboptimal decisions may be made. Therefore, an assessment of the types of errors regarding clinical decision making are worthy of consideration. In this article, a scheme for decision making regarding the management of cervical spondylosis is presented.
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In the surgical management of cervical spondylosis, the application of rigid internal fixation can enhance the immediate stability of the cervical spine. The sophistication of such internal fixation systems and the indications for their use are continuously evolving. A sound understanding of regional anatomy, biomechanics, and kinematics within the cervical spine is essential for the safe and effective application of internal fixation. ⋯ Although lateral mass screws provide excellent fixation within the subaxial cervical spine, the regional anatomy of C2 and C7 often make it difficult to place such screws, and pedicle screws at these levels are advocated. Pedicle screws achieve fixation into both the anterior and posterior column and are arguably the most stable form of rigid internal fixation within the cervical spine. Familiarity with these internal fixation techniques can be an extremely valuable tool for the spine surgeon managing these degenerative disorders of the cervical spine.