Research Article

Effectiveness of Gelatin-Thrombin Matrix Sealants (Floseal®) on Postoperative Spinal Epidural Hematoma during Single-Level Lumbar Decompression Using Biportal Endoscopic Spine Surgery: Clinical and Magnetic Resonance Image Study

Figure 4

Clinical outcome improvement. (a) VAS of the leg. (b) VAS score of back. (c) ODI (%). (d) Modified MacNab criteria. (VAS: visual analog scale, ODI: Oswestry Disability Index).
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