https://www.selleckchem.com/pr....oducts/gmx1778-chs82
The frequency of IONM alerts for EMG, SSEP and MEPs did not significantly increase as the number of LLIF levels accessed increased. No EMG, SSEP, or MEP alerts occurred at L1-L2. EMG alerts occurred in 2-5% of patients at L2-L3, L3-L4, and L4-L5 and did not significantly vary by level ( = .34). SSEP and MEP alerts occurred more frequently at L4-L5 versus L2-L3 and L3-L4 ( .03). IONM may provide the greatest utility at L4-L5, particularly MEPs, and may not be necessary for more cephalad LLIF procedures such as at L1-L2. IONM
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