For patients with closed head injuries who develop posttraumatic pseudomeningocele, we recommend cranial computed tomography to assess for the presence of hydrocephalus. In patients with atlanto-occipital dislocation, delayed neurological deterioration warrants magnetic resonance imaging of the craniocervical junction to rule out posttraumatic pseudomeningocele.
The coincidence of X-linked hypophosphatemia and ossification of ligamenta flava has been reported only in two or three cases in the literature. Removal of the offending ossifying lesion is known to result in resolution of the clinical deficits but similar lesions at other spinal levels are suspected of producing recurrences. The return of function and of the corresponding electrophysiologic correlates indicate a neurono-apractic nature of the neurologic symptoms.
Acceptable clinical outcomes can be achieved in lower-volume aneurysm practices. A multidisciplinary subspecialty approach with aggressive perioperative care, especially in the prevention and treatment of cerebral vasospasm, is important in obtaining these results. Close interaction with medical consultants and other subspecialists is necessary.
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