J Korean Neurosurg S
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J Korean Neurosurg S · Jun 2013
T1 Slope and Cervical Sagittal Alignment on Cervical CT Radiographs of Asymptomatic Persons.
We performed a retrospective analysis of medical records and radiographic images of patients who never underwent spinal treatment including diagnosis. The objective of this study is to explain the biomechanical and physiologic characteristics of cervical alignment related to thoracic inlet angle including T1 slope changes in each individual. ⋯ We propose that the T1 slope is background information in deciding how much angle can be made in the cervical spinal angle of surgical lordotic curvature, especially severe cervical deformity.
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J Korean Neurosurg S · Jun 2013
Case ReportsUpward migration of a peritoneal catheter following ventriculoperitoneal shunt.
We present an unusual case of peritoneal catheter migration following a ventriculoperitoneal shunt operation. A 7-month-old infant, who had suffered from intraventricular hemorrhage at birth, was shunted for progressive hydrocephalus. ⋯ Simple X-ray images revealed total upward migration and coiling of the peritoneal catheter around the valve. Possible mechanisms leading to proximal upward migration of a peritoneal catheter are discussed.