“…Intrao-perative spinal cord monitoring assesses the functional integrity on the spinal cord for 2 early detection of potential injury, allowing immediate surgical maneuvers before injury becomes 3 irreversible (Hongxuan, et al, 2006, Nash, et al, 1974, Nuwer, 1999. Multi-modality monitoring, 4 the widely used technique in clinical practice, has been considered as a reliable intra-operative 5 spinal cord monitoring technique (DiCindio, et al, 2003, Eggspuehler, et al, 2007, Quraishi, et al, 6 2009).…”