PMC5875114_01
MRI lumbar spine
SNI-9-66-g001.jpg
PMC5875114_01_SNI-9-66-g001.jpg
F1
The lumbar magnetic resonance imaging (MRI) demonstrated a large L2-3 central disc herniation/stenosis resulting in marked thecal sac/nerve root compression [Figure 1].
Baseline sensory evoked potentials
SNI-9-66-g002.jpg
PMC5875114_01_SNI-9-66-g002.jpg
F2
When placed prone on a Jackson table, the preoperative SEP/MEP baselines were completely lost [Figures 2-5].
Baseline motor evoked potentials
SNI-9-66-g003.jpg
PMC5875114_01_SNI-9-66-g003.jpg
F3
When placed prone on a Jackson table, the preoperative SEP/MEP baselines were completely lost [Figures 2-5].
Post-flip sensory evoked potentials
SNI-9-66-g004.jpg
PMC5875114_01_SNI-9-66-g004.jpg
F4
When placed prone on a Jackson table, the preoperative SEP/MEP baselines were completely lost [Figures 2-5].
Post-flip motor evoked potentials
SNI-9-66-g005.jpg
PMC5875114_01_SNI-9-66-g005.jpg
F5
When placed prone on a Jackson table, the preoperative SEP/MEP baselines were completely lost [Figures 2-5].
Post-operative sensory evoked potentials
SNI-9-66-g006.jpg
PMC5875114_01_SNI-9-66-g006.jpg
F6
When repositioned prone, although signals were again lost, the surgeons proceeded with an emergent L2-L3 laminectomy/discectomy; by the end of the procedure, the signals returned to the baseline bilaterally [Figures 6 and 7].
Post-operative motor evoked potentials
SNI-9-66-g007.jpg
PMC5875114_01_SNI-9-66-g007.jpg
F7
When repositioned prone, although signals were again lost, the surgeons proceeded with an emergent L2-L3 laminectomy/discectomy; by the end of the procedure, the signals returned to the baseline bilaterally [Figures 6 and 7].