C J Riedel

Learn More
BACKGROUND Paraclinoid or ophthalmic segment aneurysms arise from the internal carotid artery (ICA) between the roof of the cavernous sinus and the origin of the posterior communicating artery. Clinoid aneurysms arise between the proximal and distal carotid dural rings. The complex anatomy of clinoid and paraclinoid ICA aneurysms often makes them difficult(More)
There is little information on the effect of pain on neuropsychological test performance. We have undertaken this study to explore which tests are affected by pain, the magnitude of these changes, and other confounders of neuropsychological performance in a population of patients having spine surgery. Twenty-four elderly English speaking Caucasian patients(More)
Epithelioid hemangioendothelioma is a recently described, rare vasoformative vascular tumor of variable biological behavior. Its principal sites of occurrence are soft tissues, liver, lung, and bone. There have been no formal case reports of this tumor occurring in the vertebral column, and there are no reports in the literature of surgical treatment for(More)
OBJECTIVE AND IMPORTANCE Pregnancy-related vertebral hemangioma compressive myelopathy is a rare occurrence that tends to arise in the upper thoracic and lower cervical spine, peaks during the third trimester, and remits after parturition. Whether corticosteroid receptors play a role in the pathogenesis of these lesions is unknown. Most of these lesions(More)
The pathophysiology of syrinx development is controversial. The authors report on a patient with progressive cervical myelopathy and a Chiari I malformation in whom spinal cord swelling preceded, by a few months, the development of a syrinx in the same location. The patient underwent a craniocervical decompressive procedure and duraplasty, and complete(More)
BACKGROUND Modern cranial base approaches to the clivus and foramen magnum may threaten the stability of the cranio-cervical junction. This necessitates stabilization and fusion in some cases. We studied occipitocervical fusion after extreme lateral transcondylar approaches. METHODS Twenty-seven patients underwent an extreme lateral transcondylar approach(More)
  • 1