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14 August 2020: Clinical Research

A Retrospective Study of Surgical Correction for Spinal Deformity with and without Osteotomy to Compare Outcome Using Intraoperative Neurophysiological Monitoring with Evoked Potentials

Jian Chen 1DEF* , Jing-fan Yang 1BCF** , Yao-long Deng 1BCF* , Wen-yuan Sui 1EF , Xie-xiang Shao 1BCD , Zi-fang Huang 2ABCDE* , Jun-lin Yang 1FG

DOI: 10.12659/MSM.925371

Med Sci Monit 2020; 26:e925371

Table 5 Data of intraoperative evoked potential events and outcomes in the osteotomy group.

CaseGroupAgeSexOsteotomy levelBlood loss (mL)EP eventsIntraoperative managementPostoperative spinal cord functionNerve injury outcomeComplication
1B116MaleT92200MEP change at osteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
2B117MaleT95000MEP change at correctionRecovery after reducing correctionFrankel grade EFrankel grade E
3B18MaleT5–62000MEP, SSEP change at screw insertion and osteotomyRecovery after changing screw position and extending laminectomyFrankel grade EFrankel grade E
4B110MaleT5–72200MEP, SSEP change at screw insertion and osteotomyRecovery after changing screw position and extending laminectomyFrankel grade EFrankel grade E
5B117MaleT11–123500MEP change at osteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
6B113MaleT54300MEP, SSEP change at osteotomy and correctionRecovery after lifting blood pressure and reducing correctionFrankel grade EFrankel grade E
7B133MaleT11–122500MEP change at osteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
8B112FemaleT6–81500MEP change at screw insertionRecovery after removing screw and lift blood pressureFrankel grade EFrankel grade E
9B113FemaleT56000MEP change at correctionRecovery after reducing correctionFrankel grade EFrankel grade E
10B115MaleT72600MEP change at correctionRecovery after reducing correctionFrankel grade EFrankel grade E
11B121MaleT96000MEP change at osteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
12B118FemaleT93500MEP change at osteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade EWound infection
13B114FemaleT92800MEP change at osteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade EWound infection
14B218MaleT74150SSEP,MEP,DNEP change at correctionNo recovery after reducing correctionFrankel grade CRecovery to Frankel grade E at 1 months postoperatively
15B214FemaleT104000MEP change at OsteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade EWound infection
16B227MaleT7–83000SSEP,MEP,DNEP change at osteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade CRecovery to Frankel grade E at 9 months postoperatively
17B231FemaleT4–65779SSEP,MEP,DNEP change at osteotomy and correctionNo recovery after reducing correctionFrankel grade BRecovery to Frankel grade E at 1 year postoperativelyHemorrhage
18B227MaleT85900SSEP,MEP,DNEP change at osteotomy and correctionNo recovery after reducing correctionFrankel grade CRecovery to Frankel grade E at 6 months postoperatively
19B225MaleT10–111715MEP change at OsteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade ECerebrospinal fluid leakage
20B220FemaleT102039SSEP,MEP,DNEP change at osteotomy,screw insertion and correctionRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
21B220MaleT7–86968SSEP,MEP,DNEP change at osteotomy and correctionNo recovery after reducing correctionFrankel grade CRecovery to Frankel grade E at 6 months postoperatively
22B223MaleT122200SSEP,MEP,DNEP change at osteotomy and correctionRecovery after reducing correctionFrankel grade EFrankel grade E
23B213FemaleT122360MEP, SSEP change at OsteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
24B214MaleT101768MEP change at OsteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
25B28FemaleT61407MEP, SSEP change at correctionRecovery after reducing correctionFrankel grade EFrankel grade E
26B225MaleT104000MEP change at correctionRecovery after reducing correctionFrankel grade EFrankel grade E
27B221MaleT122484MEP change at OsteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade ECerebrospinal fluid leakage
28B214FemaleT102150MEP change at OsteotomyRecovery after lifting blood pressure and stopping procedureFrankel grade EFrankel grade E
EP – evoked potential; MEP – motor evoked potential; SSEP – somatosensory evoked potentials; DNEP – descending neurogenic evoked potentials

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Medical Science Monitor Basic Research eISSN: 2325-4416
Medical Science Monitor Basic Research eISSN: 2325-4416