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Fig. 4 | Journal of Orthopaedic Surgery and Research

Fig. 4

From: Comparison of the safety and efficacy of unilateral biportal endoscopic lumbar interbody fusion and uniportal endoscopic lumbar interbody fusion: a 1-year follow-up

Fig. 4

The combined figures show the steps of ULIF. a Operative marking. b The working channel is inserted. c Facet joint is revealed by clearing the soft tissue surrounding. d Laminoplasty by using an endoscopic rimmer. e The disk is revealed by rotating the working channel after foraminoplasty. f The endoscopic grasper was used to perform discectomy. g The bed for bone graft is well prepared. h The location of the cage is ensured under C-arm guidance. i The guide wires are inserted to prepare for the insertion of pedicle screws

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