Efficacy and limitations of current methods of intraoperative spinal cord monitoring.
J Orthop Sci
; 8(5): 635-42, 2003.
Article
en En
| MEDLINE
| ID: mdl-14557928
ABSTRACT
The purpose of this study was to evaluate the efficacy and reliability of intraoperative spinal monitoring using spinal cord-evoked and compound muscle action potentials. We reviewed 716 cases of spinal monitoring performed over 15 years. The series contained 672 patients with spinal functions that could be monitored intraoperatively; 44 (6.1%) were impossible to record. Based on the 21 impossible-to-record patients, it is evident that missing a serious case such as a Frankel B type spinal cord injury indicates the limitations of the current monitoring methods for stimulating and recording. The monitoring outcomes were true-negative in 652 patients, true-positive in 12, false-negative in four, and false-positive in four. In two of the patients with false-negative results, postoperative myelomere motor paralysis was observed temporarily even though it was possible to record the muscle-evoked potential after electrical stimulation to the brain [Br(E)-MsEP] at the end of the operation. In cases in which the spinal parenchyma or spinal nerve root might be selectively damaged, Br(E)-MsEPs may not diagnose the disorder accurately. By employing multimodal monitoring, it should be possible to eliminate patients with false-negative results and to detect spinal disorders during the early stages, as well as to examine whether the abnormality that had been recorded by a single method is false-positive.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Médula Espinal
/
Enfermedades de la Columna Vertebral
/
Monitoreo Intraoperatorio
Tipo de estudio:
Observational_studies
Límite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Orthop Sci
Asunto de la revista:
ORTOPEDIA
Año:
2003
Tipo del documento:
Article
País de afiliación:
Japón