• Weilong Tang, Tuo Shao, Fulin Guan, Zhizhuang Zhang, Qichang Gao, Guofa Guan, Yuhang Hu, Wencheng Sun, Guomin Fu, Guozhong Li, Jiaao Gu, and Zhange Yu.
• The First Affiliated Hospital of Harbin Medical University, Harbin, China.
• World Neurosurg. 2020 Aug 1; 140: 347-352.

BackgroundIntraspinal extradural ventral cysts in the lumbar spine can cause back pain and neurological deficits of the lower extremities. For the resection of this type of space-occupying lesion, the transdural approach has not been reported in the literature.Case DescriptionA 66-year-old man presented, suffering from progressive radiation pain of his bilateral lower extremities. Imaging examination revealed a cystic lesion in ventral side of lumbar spinal canal. We conducted the excision of the cyst with the transdural approach. The symptoms of the patient disappeared immediately after the operation and recurrence of the symptoms has not been observed in the 3-month follow-up.ConclusionsThis operation approach is safe and effective. Compared with the previous surgical approach reported in the literature, by this approach surgeons could achieve less injury, shorter operation time, and the same surgical outcomes in the short term. Therefore, we would like to present this approach to provide an alternative to deal with similar lesions.Copyright © 2020 Elsevier Inc. All rights reserved.

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