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Updated: Jul 20, 2026

A Surgical Approach for Optic Nerve Crush in a Rabbit Model

A Surgical Approach for Optic Nerve Crush in a Rabbit Model

Published on: July 8, 2025

Neuroma-in-continuity model in rabbits.

Chunhui Song¹, Feng Zhang, Jian Zhang

¹Department of Orthopedic Surgery, Fudan University, Zhong Shan Hospital, Shanghai, China.

Annals of Plastic Surgery

|August 25, 2006

Summary

This study establishes a rabbit model for neuroma-in-continuity, validating it with histology, electrophysiology, and molecular markers. Findings reveal significant nerve conduction changes and altered protein expression, offering reliable parameters for evaluating neuroma treatments.

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Area of Science:

Neuroscience
Regenerative Medicine
Animal Models

Background:

Neuroma-in-continuity presents challenges in diagnosis and treatment.
Reliable animal models are crucial for understanding neuroma pathophysiology and testing interventions.

Purpose of the Study:

To develop and validate a rabbit model for neuroma-in-continuity.
To identify reliable electrophysiologic and molecular markers for evaluating neuroma formation.

Main Methods:

Resection of the rabbit peroneal nerve lateral fascicule.
Histologic analysis using HE, Luxol fast blue, and Van-Gieson staining.
Electrophysiologic assessment of motor nerve conduction velocity (MCV) and compound motor action potential (CMAP).
Quantitative analysis of ciliary neurotrophic factor (CNTF) and calcitonin gene-related peptide (CGRP) mRNA expression.

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A Surgical Approach for Optic Nerve Crush in a Rabbit Model

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Arterial Pouch Microsurgical Bifurcation Aneurysm Model in the Rabbit

Arterial Pouch Microsurgical Bifurcation Aneurysm Model in the Rabbit

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Main Results:

Histology confirmed typical neuroma-in-continuity pathology 4-6 weeks post-surgery.
Significant reductions in MCV and CMAP were observed compared to healthy nerves.
Downregulation of CNTF in nerve tissue and upregulation of CGRP mRNA in dorsal root ganglia were detected.

Conclusions:

The rabbit model accurately replicates neuroma-in-continuity.
Electrophysiologic and molecular markers provide reliable indicators of neuroma formation.
This model and its markers can aid in evaluating therapeutic strategies for neuromas.