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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

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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: Jun 28, 2026

Synergetic Use of Neural Precursor Cells and Self-assembling Peptides in Experimental Cervical Spinal Cord Injury

Synergetic Use of Neural Precursor Cells and Self-assembling Peptides in Experimental Cervical Spinal Cord Injury

Published on: February 23, 2015

Managing acute spinal cord injuries.

Stephanie A Kube¹, Natasha J Olby

¹VCA South Shore Animal Hospital, Weymouth, MA, USA.

Compendium (Yardley, PA)

|October 28, 2008

Summary

Early surgical decompression is the best treatment for acute spinal cord injuries in veterinary patients. High-dose methylprednisolone sodium succinate is not recommended due to limited benefits and severe adverse effects.

Area of Science:

Veterinary Neurology
Neurosurgery
Emergency Medicine

Background:

Acute spinal cord injuries in animals encompass vascular, compressive, and concussive types.
Fibrocartilagenous emboli commonly cause vascular lesions (infarcts).
Compressive and concussive injuries stem from conditions like intervertebral disc disease, fractures, and luxations.

Purpose of the Study:

To review current management strategies for acute spinal cord injuries in veterinary patients.
To evaluate the efficacy and safety of methylprednisolone sodium succinate in treating these injuries.

Main Methods:

Review of existing literature on veterinary spinal cord injury management.
Analysis of studies investigating the use of methylprednisolone sodium succinate in human and veterinary medicine.

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Main Results:

Early surgical intervention or decompression is considered the optimal treatment for acute compressive spinal cord injuries.
High-dose methylprednisolone sodium succinate has demonstrated minimal therapeutic benefit.
Significant adverse effects are associated with methylprednisolone sodium succinate treatment.

Conclusions:

Prompt surgical decompression is crucial for managing acute compressive spinal cord injuries in veterinary patients.
The use of high-dose methylprednisolone sodium succinate in veterinary spinal cord injuries is not supported by current evidence due to adverse effects and lack of efficacy.