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; Jing-fan Yang; Yao-long Deng; Xie-xiang Shao; Zi-fang Huang; Jun-lin Yang

doi:10.12659/MSM.925371

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

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

Case	Group	Age	Sex	Osteotomy level	Blood loss (mL)	EP events	Intraoperative management	Postoperative spinal cord function	Nerve injury outcome	Complication
1	B1	16	Male	T9	2200	MEP change at osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
2	B1	17	Male	T9	5000	MEP change at correction	Recovery after reducing correction	Frankel grade E	Frankel grade E	–
3	B1	8	Male	T5–6	2000	MEP, SSEP change at screw insertion and osteotomy	Recovery after changing screw position and extending laminectomy	Frankel grade E	Frankel grade E	–
4	B1	10	Male	T5–7	2200	MEP, SSEP change at screw insertion and osteotomy	Recovery after changing screw position and extending laminectomy	Frankel grade E	Frankel grade E	–
5	B1	17	Male	T11–12	3500	MEP change at osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
6	B1	13	Male	T5	4300	MEP, SSEP change at osteotomy and correction	Recovery after lifting blood pressure and reducing correction	Frankel grade E	Frankel grade E	–
7	B1	33	Male	T11–12	2500	MEP change at osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
8	B1	12	Female	T6–8	1500	MEP change at screw insertion	Recovery after removing screw and lift blood pressure	Frankel grade E	Frankel grade E	–
9	B1	13	Female	T5	6000	MEP change at correction	Recovery after reducing correction	Frankel grade E	Frankel grade E	–
10	B1	15	Male	T7	2600	MEP change at correction	Recovery after reducing correction	Frankel grade E	Frankel grade E	–
11	B1	21	Male	T9	6000	MEP change at osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
12	B1	18	Female	T9	3500	MEP change at osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	Wound infection
13	B1	14	Female	T9	2800	MEP change at osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	Wound infection
14	B2	18	Male	T7	4150	SSEP,MEP,DNEP change at correction	No recovery after reducing correction	Frankel grade C	Recovery to Frankel grade E at 1 months postoperatively	–
15	B2	14	Female	T10	4000	MEP change at Osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	Wound infection
16	B2	27	Male	T7–8	3000	SSEP,MEP,DNEP change at osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade C	Recovery to Frankel grade E at 9 months postoperatively	–
17	B2	31	Female	T4–6	5779	SSEP,MEP,DNEP change at osteotomy and correction	No recovery after reducing correction	Frankel grade B	Recovery to Frankel grade E at 1 year postoperatively	Hemorrhage
18	B2	27	Male	T8	5900	SSEP,MEP,DNEP change at osteotomy and correction	No recovery after reducing correction	Frankel grade C	Recovery to Frankel grade E at 6 months postoperatively	–
19	B2	25	Male	T10–11	1715	MEP change at Osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	Cerebrospinal fluid leakage
20	B2	20	Female	T10	2039	SSEP,MEP,DNEP change at osteotomy,screw insertion and correction	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
21	B2	20	Male	T7–8	6968	SSEP,MEP,DNEP change at osteotomy and correction	No recovery after reducing correction	Frankel grade C	Recovery to Frankel grade E at 6 months postoperatively	–
22	B2	23	Male	T12	2200	SSEP,MEP,DNEP change at osteotomy and correction	Recovery after reducing correction	Frankel grade E	Frankel grade E	–
23	B2	13	Female	T12	2360	MEP, SSEP change at Osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
24	B2	14	Male	T10	1768	MEP change at Osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
25	B2	8	Female	T6	1407	MEP, SSEP change at correction	Recovery after reducing correction	Frankel grade E	Frankel grade E	–
26	B2	25	Male	T10	4000	MEP change at correction	Recovery after reducing correction	Frankel grade E	Frankel grade E	–
27	B2	21	Male	T12	2484	MEP change at Osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	Cerebrospinal fluid leakage
28	B2	14	Female	T10	2150	MEP change at Osteotomy	Recovery after lifting blood pressure and stopping procedure	Frankel grade E	Frankel grade E	–
EP – evoked potential; MEP – motor evoked potential; SSEP – somatosensory evoked potentials; DNEP – descending neurogenic evoked potentials

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

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