Learning Curve and Clinical Outcome of Biportal Endoscopic-Assisted Lumbar Interbody Fusion

Figure 3

Perioperative plain radiography films. (a) Preoperative anteroposterior and lateral images show degenerative L3–4 spondylolisthesis. (b) Follow-up anteroposterior and lateral films showing reduction of sagittal alignment. (c) Sagittal computed tomography image 14 months postoperatively showing trabecular bridging without endplate disruption or cage subsidence.

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