Surgeon-interpreted Intra-operative Electromyography (EMG) versus Conventional EMG Pedicle Screw Testing—A Prospective Comparison
نویسنده
چکیده
The reported incidence of lumbar pedicle screw malpositioning is between 5 and 40%. Post-operative neural deficits related to screw misplacement have been reported at rates between 3 and 11%. Radiography alone is an unreliable tool for determining pedicle wall violation due to malpositioned screws, whether by intra-operative fluoroscopy, plain X-ray, imageguided surgery systems based on radiographic registration, or even computed tomography, which is often considered to be the gold standard in instrumentation placement verification.
منابع مشابه
The surgical learning curve and accuracy of minimally invasive lumbar pedicle screw placement using CT based computer-assisted navigation plus continuous electromyography monitoring – a retrospective review of 627 screws in 150 patients
OBJECTIVE This study retrospectively assessed the accuracy of placement of lumbar pedicle screws placed by a single surgeon using a minimally-invasive, intra-operative CT-based computer navigated technique in combination with continuous electromyography (EMG) monitoring. The rates of incorrectly positioned screws were reviewed in the context of the surgeon's experience and learning curve. MET...
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STUDY DESIGN Literature review. OBJECTIVE The objective of this article is to examine current intraoperative electromyography (EMG) neurophysiologic monitoring methods and their application in minimally invasive techniques. We will also discuss the recent application of EMG and its anatomic implications to the minimally invasive lateral transpsoas approach to the spine. SUMMARY OF BACKGROUN...
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BACKGROUND The foremost concern of a surgeon during pedicle screw fixation is safety. Assistive modalities, especially intraoperative electromyographic monitoring (EMG) can function as an essential tool to recognize screw malposition that compromise neural integrity, so that the screws can be repositioned immediately rather than later. We intend to study the efficacy of intraoperative EMG monit...
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