• Antoine Gennari, Bilal Tarabay, Ghassan Boubez, Zhi Wang, Daniel Shedid, and Sung-Joo Yuh.
• Division of Neurosurgery, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada. Electronic address: antoine_gennari@hotmail.fr.
• World Neurosurg. 2021 Nov 1; 155: 77-81.

BackgroundVarious surgical techniques have been described to address intraforaminal/extraforaminal lumbar lesions. They vary from the classic posterior open approaches to minimally invasive techniques with tubular retractors and even endoscopy. These lesions have been approached from either an ipsilateral or a contralateral approach. Only a few reports have described a contralateral minimally invasive tubular approach to address these lesions. However, none of them have been able to address calcified pathologies.MethodWe used a contralateral tubular approach to remove the calcified disc herniations in 2 patients presenting with radiculopathy secondary to a calcified intraforaminal L5-S1 disc herniation.ResultsEarly clinical and radiological outcomes were positive. No perioperative complications occurred.ConclusionsTo our knowledge, this is the first report of the expanded use of fixed tubular retractors to address calcified lumbar intraforaminal disc herniations. This approach allows a satisfactory access and view of the contralateral foramen and offending lesion. It permits a wide decompression while preserving the facet joint and thus prevents iatrogenic instability. It can also avoid the iliac crest, which does not allow an ipsilateral extraforaminal approach at the L5-S1 level. This approach is a safe and effective way to treat this specific pathology.Copyright © 2021 Elsevier Inc. All rights reserved.

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