• Ali Güven Yörükoğlu, Alican Tahta, Mehmet Osman Akçakaya, Pulat Akın Sabancı, Yavuz Aras, Aydın Aydoseli, Müge Dolgun, Altay Sencer, and Kemal Hepgül.
• Department of Neurosurgery, Private Asia Hospital, Istanbul, Turkey.
• World Neurosurg. 2016 Aug 1; 92: 402-406.

ObjectiveTo investigate the utility, safety, and feasibility of a novel endoscopic technique for the visualization and surgical manipulation of the filum terminale in fresh postmortem adult human cadavers.MethodsThe filums from 18 fresh postmortem adult human cadavers were explored with a percutaneous fully endoscopic interlaminar approach. After the filum was identified and the nerve roots were dissected away from it, the filum was cut. A specimen was sent for histopathologic examination.ResultsIn 15 of 18 (83%) cadavers, the filum terminale could be visualized. A specimen for histopathologic examination was obtained from 11 of 15 (73%) visualized filums. Histopathologic examination revealed that 2 of them were fatty filums, 7 were normal filums, and 2 were peripheral nerves.ConclusionsWe have described a successful and feasible percutaneous fully endoscopic interlaminar approach to the filum terminale. This technique provides a smaller skin incision, narrow durotomy, and minimal tissue damage. Animal studies are necessary to prove the feasibility and safety of our method before clinical use.Copyright © 2016 Elsevier Inc. All rights reserved.

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