A Novel Technique of the Full Endoscopic Interlaminar Contralateral Approach for Symptomatic Extraforaminal Juxtafacet Cysts

Objective: Extraforaminal juxtafacet cyst is rare and present a surgical challenge due to its anatomical location. This study aimed introduce the technique of interlaminar contralateral endoscopic lumbar foraminotomy (ICELF) for extraforaminal removal reveal approach-related benefits.Method: The endoscope was docked on ipsilateral spinolaminar junction access foraminal area through sublaminar space created by fine drilling. As enlarged ligament superior articular process drilling, introduced deeper without violation disc. Combined stenosis also resolved while exploring space. Subsequently, safely entirely removed exposing cyst-nerve root adhesion site with an view looking up obliquely.Results: Radiating pain in right leg, back pain, leg hypesthesia, ankle weakness improved. Conclusion: ICELF treatment JFC can be alternative method resolve symptomatic simultaneously. system moves parallel exiting nerve during ICELF, facilitating clear visualization cranial-dorsally or cranial-ventrally located JFCs. entire contour detected retraction, meticulous dissection possible violating cystic wall.