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. 2020 Sep 10;15(3):392–407. doi: 10.31616/asj.2020.0275

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Copyright © 2021 by Korean Society of Spine Surgery

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 12. — Main surgical steps of the left anterolateral approach to the sub-axial V2 segment of the vertebral artery. (A) Platysma muscle; (B) pre-sternocleidomastoid precarotid corridor with medialization of the omohyoid muscle; (C) identification of the retro-longus colli corridor; (D) picture-in-picture operative image showing the compression of the vertebral artery by osteophyte and the indocyanine green video angiography (IR 800, Zeiss Kinevo 900; Carl Zeiss AG, Oberkochen, Germany); (E) unroofing of the left C6 transverse foramen. (F) Picture-in-picture operative picture and video angiography showing the vertebral artery completely decompressed. Pl, platysma muscle; St, sternothyroid muscle; Om, omohyoid muscle; SCM, sternocleidomastoid muscle; LCo, longus colli muscle; LCa, longus capitis muscle.