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STUDY DESIGN An evaluation of the vertebral artery groove of the atlas vertebra using dry bony vertebrae. OBJECTIVES To measure the dimension of the vertebral artery groove of the atlas and to define its relation to the posterior midline. SUMMARY OF BACKGROUND DATA Anatomic descriptions of the vertebral artery groove of the atlas exist, but very little(More)
STUDY DESIGN This study defined the projection point of the thoracic pedicles on their posterior aspect and its relation to a reliable landmark. It also reported pedicle dimensions based on 43 thoracic spines. OBJECTIVES To determine the projection point of the pedicle axis on the posterior aspect of the thoracic spine, quantitatively describe relations(More)
Eighteen adult dry-bone spine specimens were used in conjunction with computer analysis to determine the average axial spinal canal area at the levels of C6, C7, and T1 after different degrees of anterior translation of the cephalad vertebra. Simulating a distractive flexion injury, the cephalad vertebra was anteriorly displaced on the caudal vertebra at(More)
STUDY DESIGN This study evaluated the dimensions of the thoracic facet from T1 to T12 and determined the posterior projection of the inferior facet using thoracic spine specimens. OBJECTIVES To evaluate quantitatively the thoracic facet and determine the projection of the inferior facet on the posterior aspect of the lamina relative to facet hook(More)
STUDY DESIGN The present study evaluated the cervical nerve groove and intervertebral foramen using dried vertebrae and cadaveric cervical spine. OBJECTIVES To measure the cervical nerve groove in eight linear and one angular dimensions and the intervertebral foramen in two linear diameters. SUMMARY OF BACKGROUND DATA Several anatomic studies of the(More)
BACKGROUND Low dose IL-2 can restore the function of T and NK cells from Wiskott-Aldrich (WAS) patients. However, the safety of in vivo IL-2 in WAS is unknown. OBJECTIVES A phase-I study to assess safety of low dose IL-2 in WAS. METHODS Patients received 5 daily subcutaneous IL-2 injections, every 2months, for three courses. A "3+3" dose escalation(More)
Forty-seven dry thoracic specimens from T-3 to T-12 (470 thoracic vertebrae) were used to measure the dimensions of the vertebral body of the thoracic spine and to determine the relationship of the posterior angulation of screw placement to the spinal canal from different entrance points. Statistically significant differences in dimensions of male and(More)
Eighteen adult paired atlas and axis specimens were used in conjunction with computer analysis to determine the average transverse canal area of the axis after different degrees of anterior translation and three types of rotation of the atlas. After each displacement, the remaining transverse canal area of the axis was calculated. The data showed that the(More)
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