Sensory Testing Systems (STS) has proudly operated as an Arizona corporation providing Intraoperative Neuromonitoring (IONM) services for at risk spinal and cranial surgical procedures since it was established in 1993. STS has grown to provide monitoring services for over 1404 procedures in 14 hospitals for 29 surgeons. STS actively seeks to expand and extend the benefits of IONM with the goal of utmost patient care. Our highly trained neurophysiologists use only cutting-edge instrumentation and technologies along with the latest electrophysiological techniques and modalities, reducing risk and making patients feel at ease. We are proud of our team of experts and are privileged to be associated with such high-caliber healthcare professionals.