• Tanefumi Baba, Han Soo Chang, and Mitsunori Matsumae.
• Department of Neurosurgery, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
• World Neurosurg. 2020 Jan 1; 133: 253-255.

AbstractRare anomalous courses of vertebral arteries in the craniovertebral junction may compress the spinal cord causing myelopathy. We report here the severest form of this pathologic condition successfully treated with transposition of bilateral vertebral artery using Gore-Tex tapes. A 73-year-old man presented with progressive tetraparesis and gait disturbance. Imaging studies showed bilateral atresia of the C1 transverse foramina and the both vertebral arteries penetrating the dura below the C1 lamina. Pinched by the vertebral artery loops on both sides, the spinal cord was severely deformed. Through the standard midline approach, we carefully transposed both vertebral arteries off the spinal cord, placing them at the optimal position using Tanaka et al's Gore-Tex tape technique originally reported for microvascular decompression. The Gore-Tex tape transposition technique proved to be versatile and useful for safe transposition of the vertebral artery in this challenging case.Copyright © 2019 Elsevier Inc. All rights reserved.

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