White cord syndrome: a rare complication after cervical decompressive surgery
Keywords:
WHITE CORD SYNDROME, CERVICAL SPONDYLOTIC MYELOPATHY, SPINAL CORD INJURY.Abstract
Introduction: white cord syndrome, known as spinal cord reperfusion injury, is a rare complication of spinal decompressive surgery. It is defined as an immediate and sudden neurological deterioration after cervical decompression surgery.
Objective: to describe the clinical-imaging elements and treatment strategies of white cord syndrome.
Methods: a literature review was performed in Pubmed and EMBASE databases, as well as in the preprint servers BioRxiv, MedRxiv and preprint.org, and the ResearchGate platform. All articles in English and Spanish, with full text available, were chosen. The following descriptors were used: White cord syndrome AND cervical spondyloticmyelopathy. The editorial articles, books, reviews, meta-analyses and those without open-access characteristics were excluded. After excluding articles that did not meet the criteria established, 17 publications were chosen to be reviewed.
Results: seventeen articles were analyzed, with a total sample of 24 patients reported. All patients showed myelopathic involvement with variable motor defect and osteotendinous hyperreflexia. In ten articles, the surgical technique used was posterior decompression, with or without fusion. The use of steroid doses, physical therapy and surgical re-interventions was highly variable. Only two cases did not show neurological recovery at the end of the observation period.
Conclusions: recognition of this rare complication is vital, since it constitutes a cause of neurological defect after surgery. The diagnosis is made after exclusion of trans-operative complications, and after observing T2-weighted spinal cord hyper-intensity in magnetic resonance images. Management is based on adequate decompression, application of steroid treatment and rehabilitation.
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