“…The frequency of postoperative neurological injuries following spEMG alerts is low, indicating a low specificity for this technique. 63,64 stEMG monitoring involves the electrical stimulation of a pedicle channel or screw and the recording of the stimulation threshold needed to trigger a CMAP. 63 The stimulating probe is placed into the pedicle-screw channel or on the surface of the pedicle screw, and a threshold potential for stimulation of a CMAP is recorded.…”