Objectives: In patients with lumbar spinal stenosis (LSS), prolonged compression of the epidural venous plexus heightens the risk of bleeding and hematoma during minimally invasive surgery. While absorbable fluid gelatin, an animal protein-based hemostatic agent, is available, its effectiveness in lumbar endoscopic unilateral laminotomy with bilateral decompression (LE-ULBD) remains debated. Our research aims to conduct a prospective randomized controlled trial to investigate the effectiveness and safety of this hemostatic material in patients undergoing LE-ULBD for LSS.
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