Fig. 4From: Roles of multimodal intra-operative neurophysiological monitoring (IONM) in percutaneous endoscopic transforaminal lumbar interbody fusion: a case series of 113 patientsThe typical motor-evoked potential (MEP) traces from a 38-year-old female with spondylolisthesis L5/S1 grade III. intraoperative MEP trace disappeared during the operation and appeared after treatment, recovery after surgery without neurological deficitsBack to article page