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Fig. 1 | Journal of Orthopaedic Surgery and Research

Fig. 1

From: Clinical effects of arthroscopic-assisted uni-portal spinal surgery and unilateral bi-portal endoscopy on unilateral laminotomy for bilateral decompression in patients with lumbar spinal stenosis: a retrospective cohort study

Fig. 1

Performance of AUSS technique for bilateral decompression in the LSS patient. A Find the lower margin of the upper laminae and the laminae space. B The bone was removed in a circular manner along the lower margin of the upper laminae, the facet joints, the upper margin of the lower laminae, and the root of the spinous process. C Complete exposure and uncovering of the ligamentum flavum. D Exposure to the dural sac of the decompression segment. E Adequate decompression of the ipsilateral traversing nerve root and the dural sac. F Adequate decompression of the contralateral traversing nerve root and the dural sac. ▲, the lower margin of the upper laminae; ★, interlaminar space; ☆, ligamentum flavum; #, nerve root; *, dural sac

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X