LAUSR

The primary goal of surgery with spinal meningioma is complete safe tumor removal and decompression of the spinal cord. For the surgical removal of spinal meningioma, internal debulking before dissection of the tumor capsule is essential. Intraoperative ultrasonography to localize the tumor is recommended by some authors, but we use indocyanine green (ICG) videography to visualize the localization of tumor before dural incision. ICG videography allows safe and complete delineation of intradural tumors before dural opening. This technique is quick, cost-effective, and simple to use, especially with its integration into the surgical microscope.  Herein, we present a case of a 54-yr-old female patient presenting with a 1-yr history of numbness of the right lower limb. Neurological examinations demonstrated temperature pain disorder of right lower limb and slight dysuria. Magnetic resonance images demonstrated intradural extramedullary tumor at the level of Th6. Preoperative diagnosis was spinal meningioma.  In this surgical video, we show ICG angiography before dural opening, in addition to the basic surgical procedure of the thoracic meningioma. We believe this operative video will be useful for those in training as well as practicing surgeons. We received written informed consent from the patient for this publication.