Article Figures & Data
Figures
- Fig 1.
Lateral projection scoliosis radiograph demonstrates instrumented posterior spinal fusion from the occiput to the pelvis. There is an accentuated upper thoracic kyphosis and positive sagittal imbalance.
- Fig 2.
Sagittal fast spin-echo T2-weighted image of the thoracic spine demonstrates syringohydromyelia of the thoracic spinal cord with expansion of the cord (arrows). The syrinx extends from T2-T11. Portions of the spinal canal are obscured by artifacts.
- Fig 3.
A, Axial CT scan through the L2–3 level with the patient prone shows the cannula (arrow) traversing a 2.5-cm thickness of bone graft, lamina, and ossified ligamentum flavum. B, Axial CT scan demonstrates placement of the 22-gauge spinal needle (arrowhead) through the cannula (arrow) and into the SAS. The needle tip was ventral, and though we did not puncture the ventral dura, that is a theoretic risk. In future attempts, we plan to measure the distance to the middle of the thecal sac and use a depth gauge or collar to identify our intended depth. We will then secure that depth with a clamp on the spinal needle so that it cannot inadvertently advance with gravity. C, Sagittal reconstruction of the CT myelogram demonstrates subarachnoid compartmentalization, adhesions, and a compete myelographic block ventrally at T8 (arrow) and dorsally at T12 (arrowhead).
