William A Shaffer

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Variations in the cerebrovascular tree can increase surgical or interventional morbidity. To date, only scant comments are to be found in the literature regarding intraluminal variations of the basilar artery. To further elucidate such anatomy, a cadaveric study was performed. One hundred and fifty human brains were evaluated for the present study. The(More)
OBJECT Injury of the facial nerve with resultant facial muscle paralysis may result in other significant complications such as corneal ulceration. To the authors' knowledge, neurotization to the facial nerve using the long thoracic nerve (LTN), a nerve used previously for neurotization to other branches of the brachial plexus, has not been explored(More)
STUDY DESIGN Survey-based descriptive study. OBJECTIVE To study relationships between surgeon-specific factors and surgical approach to degenerative diseases of the lumbar spine. SUMMARY OF BACKGROUND DATA Geographic variations in the rates of lumbar spine surgery are significant within the United States. Although surgeon density correlates with the(More)
BACKGROUND Mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) syndrome is a rare inherited disorder that results in waxing and waning nervous system and muscle dysfunction. MELAS syndrome may overlap with other neurologic disorders but shows distinctive imaging features. CASE REPORT We present the case of a 28-year-old(More)
BACKGROUND Persistent sciatic artery (PSA) is a rare congenital anomaly of the circulation of the lower limb that results from the persistence of an artery that normally regresses early in embryonic development. PSA is usually an incidental finding and is exceedingly rare to find bilaterally. CASE REPORT We present the case of a rare presentation of PSA(More)