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Fig. 3 | Journal of Orthopaedic Surgery and Research

Fig. 3

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. 3

Fusion standard. a Lumbar radiography and b axial CT showed that a continuous bony bridge had formed between the right L4–S1 laminae and right L4/5, and the L5/S1 facet joint space was replaced by an osseous connection. c Anteroposterior CT showed that there were continuous bony bridges between the L4 and S1 transverse processes at the two sides (Grade A). d Lumbar radiography showed that there were continuous bony bridges in the L3/4 and L4/5 intravertebral spaces

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