Skip to main content
  • The Use of Intraoperative Electromyogram During Spinal Cord Stimulator Placement Surgery: A Case Series

    Final Number:

    Lee Onn Chieng MD; Karthik Madhavan MD; Nathan Bryant Schoen BA; Walter J Jermakowicz MD PhD; Steven Vanni DO, DC

    Study Design:

    Subject Category:

    Meeting: Congress of Neurological Surgeons 2017 Annual Meeting

    Introduction: Spinal Cord Stimulation (SCS) is an efficacious treatment for various chronic pain syndromes culminating predominantly into spinal nerves before reaching higher pain centers. To improve intra-operative electrode placement several groups have advocated the use of intraoperative neuromonitoring (IONM) for localization of the spinal cord midline. In our study we present the case series of patients undergoing stimulator placement with consistent EMG intraoperative testing, with an emphasis on examining reoperation rates and complications.

    Methods: Following approval from IRB, we retrospectively collected data on standard demographics, preoperative diagnoses, prior spine surgeries, electrode manufacturer, blood loss, complications, and patient outcome.

    Results: of patients had prior spine surgery, which was associated with higher rates of reoperation (p=0.019). The mean latency between initial SCS implantation and revision surgery was 14.6 months with a standard deviation of 17.2 months and its median time was 280 days. There were 13.6% of complication rate. Common complications that lead to reoperation included migrated electrode or failed generator.

    Conclusions: Our retrospective chart review of 103 patients indicates that patients receiving SCS implantation in conjunction with EMG monitoring have low complication rates and rarely return to the OR for electrode repositioning or removal.

    Patient Care: This abstract explains the role of EMG to make SCS placement more efficient.

    Learning Objectives: To learn the role of EMG in SCS placement


We use cookies to improve the performance of our site, to analyze the traffic to our site, and to personalize your experience of the site. You can control cookies through your browser settings. Please find more information on the cookies used on our site. Privacy Policy