Woo‐Keun Kwon

Uniportal Endoscopic Versus Biportal Endoscopic Versus Microscopic/Tubular Posterior Cervical Foraminotomy: A Structured Debate and International Practice Patterns

This structured debate integrates a narrative evidence synthesis with an international practice-pattern survey comparing uniportal endoscopic cervical foraminotomy (PECF), unilateral biportal endoscopic cervical foraminotomy (UBE-CF), and microscopic/tubular posterior cervical fo...

Inside-Out Versus Outside-In Transforaminal Endoscopic Lumbar Discectomy: A Structured Debate and International Practice Patterns

Transforaminal endoscopic lumbar discectomy (TELD) is performed by 2 techniques that differ in where the working corridor is first established: inside-out docks within the disc and works outward; outside-in establishes the corridor in the foramen, typically by foraminoplasty, and...