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Fig. 2 | Journal of Orthopaedic Surgery and Research

Fig. 2

From: Comparison of clinical outcomes between unilateral biportal endoscopic discectomy and percutaneous endoscopic interlaminar discectomy for migrated lumbar disc herniation at lower lumbar spine: a retrospective controlled study

Fig. 2

Surgical procedure of UBED and pre/postoperative imaging of patients with high-grade downward migrated LDH. A, B Preoperative sagittal and transverse MRI showed high-grade downward migration of the L4/5 disc. C–E Image C depicts the anteroposterior fluoroscopy utilized to guide the UBED procedure. Image D highlights the UBED working channel. Image E displays the decompressed nerve root following successful UBED. F–H Postoperative sagittal and coronal CT imaging of the operated area reveals the absence of any remaining migrated nucleus pulposus. Additionally, 3D reconstruction enables clear visualization of the defective bone

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X