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Table 1 Radiological Evaluation with the Bridwell Anterior Fusion Grading System

From: Comparison of serum markers for muscle damage, surgical blood loss, postoperative recovery, and surgical site pain after extreme lateral interbody fusion with percutaneous pedicle screws or traditional open posterior lumbar interbody fusion

Grade Description
1 Fused with remodeling and trabeculae present
2 Graft intact, not fully remodeled and incorporated, but no lucency present
3 Graft intact, potential lucency present at top and bottom of graft
4 Fusion absent with collapse/resorption of graft