Fig. 3From: Postoperative spinal orthosis may not be necessary for minimally invasive lumbar spine fusion surgery: a prospective randomized controlled trialA BSF-3, fusion with remodeling and trabecular present. B BSF-2, graft intact, not fully remodeled and incorporated, but no lucency present. C BSF-1, graft intact but with lucency visible around the graft or cageBack to article page