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Intraoperative evoked potentials in patients with ossification of posterior longitudinal ligament

Authors
 Myungeun Yoo  ;  Yoon Ghil Park  ;  Yong Eun Cho  ;  Chae Hwan Lim  ;  Seok Young Chung  ;  Dawoon Kim  ;  Jinyoung Park 
Citation
 JOURNAL OF CLINICAL MONITORING AND COMPUTING, Vol.36(1) : 247-258, 2022-02 
Journal Title
JOURNAL OF CLINICAL MONITORING AND COMPUTING
ISSN
 1387-1307 
Issue Date
2022-02
MeSH
Evoked Potentials, Motor / physiology ; Humans ; Intraoperative Neurophysiological Monitoring* ; Longitudinal Ligaments / surgery ; Ossification of Posterior Longitudinal Ligament* / surgery ; Osteogenesis ; Retrospective Studies ; Spinal Fusion* ; Treatment Outcome
Keywords
Cervical myelopathy ; Intraoperative neurophysiological monitoring ; Ossification of the posterior longitudinal ligament ; Somatosensory evoked potentials
Abstract
Preoperative somatosensory evoked potentials (preSEPs) are used to evaluate the severity of myelopathy, and intraoperative neurophysiological monitoring (IONM) is used to reduce iatrogenic damage during operations. However, the correlation between preSEPs and IONM on postoperative neurologic deterioration (PND) in ossification of the posterior longitudinal ligament (OPLL) has not been studied. Thus, under the hypothesis that the patients with deteriorated preSEPs would be more likely to have significant changes in intraoperative SEPs (ioSEPs), and that this would be correlated with PND, we investigated the prognostic value of preSEPs on IONM and PND. This retrospective study included 265 patients who underwent preSEPs and IONM between January 2015 and July 2019. Muscle strength, the sensory scale of the Japanese Orthopaedic Association score examined within 3 days preoperatively, and at 48 h and 4 weeks postoperatively, was analysed. PreSEPs and intraoperative SEPs (ioSEPs) were recorded by stimulating the median and tibial nerves. Intraoperative motor evoked potentials (ioMEPs) were elicited by transcranial electrical stimulation over the motor cortex. PreSEPs latency prolongation of the median and tibial nerves showed significant correlations with ioSEPs. PMD at 48 h or 4 weeks after surgery correlated with ioSEPs and ioMEPs amplitudes. Postoperative sensory deterioration (PSD) at 48 h or 4 weeks after surgery correlated with latency prolongation of ioSEPs. There was a positive correlation between amount of blood loss and maximum percentage of ioSEPs latency prolongation and a negative correlation with PMD at 48 h and 4 weeks postoperatively. PreSEPs predict significant changes in ioSEPs. Furthermore, bleeding control is important to reduce PMD in OPLL.
Full Text
https://link.springer.com/article/10.1007/s10877-020-00646-0
DOI
10.1007/s10877-020-00646-0
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Rehabilitation Medicine (재활의학교실) > 1. Journal Papers
Yonsei Authors
Park, Yoon Ghil(박윤길) ORCID logo https://orcid.org/0000-0001-9054-5300
Park, Jinyoung(박진영) ORCID logo https://orcid.org/0000-0003-4042-9779
Cho, Yong Eun(조용은) ORCID logo https://orcid.org/0000-0001-9815-2720
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/191241
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