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Related Experiment Video

Updated: Jan 13, 2026

Spinal Cord Lateral Hemisection and Asymmetric Behavioral Assessments in Adult Rats

Spinal Cord Lateral Hemisection and Asymmetric Behavioral Assessments in Adult Rats

Published on: March 24, 2020

Sciatic Nerve Electrical Stimulation Enhances Locomotor Recovery in Rats Following Spinal Cord Contusion.

Shih-Yen Tsai¹, Jennifer A Schreiber^1,2, Jordan Iordanou²

¹Research Service, Edward Hines Jr. VA Hospital, IL, USA.

Neuroscience Insights

|October 29, 2025

Summary

Daily electrical stimulation of sciatic nerves significantly improved hindlimb function in rats after spinal cord injury. This approach offers a promising avenue for enhancing locomotor recovery in spinal cord injury (SCI) patients.

Keywords:

SCI electrical stimulation functional improvement peripheral nerve

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Last Updated: Jan 13, 2026

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Area of Science:

Neuroscience
Regenerative Medicine
Biomedical Engineering

Background:

Spinal cord injury (SCI) impacts over 300,000 individuals in the US, with limited options for restoring locomotor function.
Functional electrical stimulation (FES) aids muscle contraction in rehabilitation, but its direct nerve stimulation efficacy for SCI recovery is unclear.

Purpose of the Study:

To investigate the effects of direct bilateral sciatic nerve stimulation on functional recovery.
To assess outcomes in an adult rat model of thoracic spinal cord contusion.

Main Methods:

Twenty adult male rats with T10 spinal cord contusion received daily 30-minute electrical stimulation or sham stimulation of bilateral sciatic nerves for 6 weeks.
Functional recovery was evaluated weekly using the BBB (Borg Scale) locomotor scale.

Main Results:

Both groups exhibited normal hindlimb function pre-surgery, followed by a significant decline post-SCI.
Rats receiving sciatic nerve stimulation showed significantly improved BBB scores over time compared to the sham group (P < .001).

Conclusions:

Daily bilateral sciatic nerve stimulation accelerates and significantly improves hindlimb function post-SCI.
Further research is required to understand the mechanisms driving this functional recovery.