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Fig. 2 | Journal of Orthopaedic Surgery and Research

Fig. 2

From: Posterolateral fusion combined with posterior decompression shows superiority in the treatment of severe lumbar spinal stenosis without lumbar disc protrusion or prolapse: a retrospective cohort study

Fig. 2

Classification of lateral recess stenosis. a Grade 0: normal. b Grade 1: the size of lateral recess stenosis is reduced, but the nerve root is not compressed and visualized. c Grade 2: the size of lateral recess stenosis is reduced and the nerve root is compressed. d Grade 3: severe hypertrophy of the facet and ligamentum flavum, no space or CSF is identified in the lateral recess, and the nerve root is compressed severely

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X