Endoscopic telovelar approach to the fourth ventricle: anatomic study

摘要: The telovelar approach allows reliable access to the fourth ventricle and avoids splitting of vermis its associated “posterior vermal split syndrome.” Our objective was describe endoscopic topographical anatomy telovelum as accessed by cerebellomedullary corridor. A series 20 fresh fixed injected anatomical specimens were used. equipment consisted rigid endoscopes with different lens angles, while extradural step required use microscope and/or exoscope. All landmarks relationships within fissure identified means microscope/exoscope-assisted approach. In conclusion, we showed that endoscope is a valid tool gain an anatomic understanding reached