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 3
A patient who underwent BESS decompression for L4–5 spinal stenosis and additional revision surgery (hematoma evacuation) due to aggravated neurological symptoms caused by PSEH. (a) Preoperative T2-weighted magnetic resonance imaging showing central stenosis. (b) Postoperative T2-weighted MRI showing grade III PSEH. (c) Follow-up MRI 6 months after revision surgery showing removed PSEHs. (d) Intraoperative image during revision surgery. Yellow arrow: PSEH. Blue arrow: bone debris. (BESS: biportal endoscopic spine surgery, PSEH: postoperative spinal epidural hematoma, MRI: magnetic resonance image).
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