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Spinal cord contusion models.

¹W.M. Keck Center for Collaborative Neuroscience, Rutgers State University of New Jersey, 604 Allison Rd., Piscataway, NJ 08854-8082, USA. young@biology.rutgers.edu

Progress in Brain Research

|November 21, 2002

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This study details a standardized rat spinal cord contusion model using the MASCIS Impactor. This model offers consistent injury, predicting lesion volume and recovery for spinal cord injury research.

Area of Science:

Neuroscience
Regenerative Medicine
Animal Models

Background:

Spinal cord injuries (SCI) frequently involve contusions.
Weight-drop contusion models are widely used for SCI research.
Rat models are increasingly favored for SCI studies.

Purpose of the Study:

To present the MASCIS Impactor as a well-standardized rat spinal cord contusion model.
To highlight the model's consistency in producing graded spinal cord damage.
To demonstrate the model's predictive value for lesion volume and functional recovery.

Main Methods:

Utilizing the MASCIS Impactor for controlled spinal cord contusions in rats.
Standardizing injury parameters including anesthesia, age criteria, and blood gases.

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Empirically selecting variables to maximize injury consistency.

Main Results:

The MASCIS Impactor produces consistent, graded spinal cord damage.
Injury severity linearly predicts 24-hour lesion volumes.
The model accurately predicts 6-week white matter sparing and locomotor recovery.

Conclusions:

The MASCIS Impactor is a reliable and reproducible rat model for spinal cord contusion.
This standardized model enhances the consistency of SCI research.
It provides a robust platform for validating therapies for spinal cord injury.