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Secondary Spinal Cord Injury llI: Pathophysiology

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...

Spinal Cord Injury ll: Pathophysiology

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...

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Related Experiment Video

Updated: Jul 2, 2026

Photothrombosis-induced Focal Ischemia as a Model of Spinal Cord Injury in Mice

Photothrombosis-induced Focal Ischemia as a Model of Spinal Cord Injury in Mice

Published on: July 16, 2015

Cocaine-induced spinal cord infarction

O Jumma¹, A Koulaouzidis, I T Ferguson

¹Neurology Department, Salford Royal Hospital, Stott Lane, Manchester M68HD, UK. odaijumma@yahoo.co.uk

Postgraduate Medical Journal

|August 22, 2008

Summary

No abstract available in PubMed .

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