Utility of Intraoperative Neuromonitoring during Minimally Invasive Fusion of the Sacroiliac Joint

Figure 3

Following implant placement, the neuromonitoring probe is placed through the cannula of the implant and set to “searching” mode at 8 mA. In (a), monitoring of the probe past the distal end of the implant reveals a safe response, while further advancement of the probe to the position shown in (b) results in a positive EMG response, indicating that the probe has come within close proximity to a neural structure.

(a)

(b)