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The end of the first 100 years of any endeavor is an appropriate time to look back and peer forward. As neurosurgery celebrates its 1st century as a specialty, the increasing role of women neurosurgeons is a major theme. This article documents the early women pioneers in neurosurgery. The contributions of these trailblazers to the origins, academics, and professional organizations of neurosurgery are highlighted. The formation of Women in Neurosurgery in 1989 is described, as is the important role this organization has played in introducing and promoting talented women in the profession. Contributions of women neurosurgeons to academic medicine and society as a whole are briefly highlighted. Contemporary efforts and initiatives indicate future directions in which women may lead neurosurgery in its 2nd century.

This video demonstrates the workflow of a minimally invasive transforaminal interbody fusion (MIS-TLIF) using a portable intraoperative CT (iCT) scanner, (Airo®, Brainlab AG, Feldkirchen, Germany), combined with state-of-the-art total 3D computer navigation. The navigation is used not only for instrumentation but also for intraoperative planning throughout the procedure, inserting the cage, therefore, completely eliminating the need for fluoroscopy. In this video, we present a case of a 72-yr-old female patient with a history of lower back pain, right lower extremity radicular pain and weakness for 2 yr due to L4-L5 spondylolisthesis with instability and severe lumbar spinal stenosis. The patient is treated by a L4-L5 unilateral laminotomy for bilateral decompression (ULBD) and MIS-TLIF. MIS-TLIF using total 3D navigation significantly improves the workflow of the conventional TLIF procedure. The tailored access to the spine is translated into smaller but more efficient surgical corridors. This modification in a "total navigation" modality minimizes the staff radiation exposure to 0 by navigating in real time over iCT obtained images that can be acquired while the surgical staff is protected or outside the OR. Furthermore, this technique makes real-time and virtual intraoperative imaging of screws and their planned trajectory feasible. 3D Navigation eliminates the need for K-Wires, thus decreasing the risk of vascular penetration injury due to K-Wire malpositioning. 3D navigation can also predict the positioning of the interbody cage, thereby, decreasing the risk of malpositioning or subsidence. Patient consent was obtained prior to performing the procedure., (Copyright © 2019 by the Congress of Neurological Surgeons.)