ePoster

Investigating the recovery of neonatal rats from compression spinal cord injury utilizing a novel 3D printed spacer model

Reggie Ridlen, Victoria Masters, Caitlin Wesley, Matthew Burke, Huyen Le, Luke Farrell, Kristine McGrath, Catherine Gorrie
FENS Forum 2024(2024)
Messe Wien Exhibition & Congress Center, Vienna, Austria

Conference

FENS Forum 2024

Messe Wien Exhibition & Congress Center, Vienna, Austria

Resources

Authors & Affiliations

Reggie Ridlen, Victoria Masters, Caitlin Wesley, Matthew Burke, Huyen Le, Luke Farrell, Kristine McGrath, Catherine Gorrie

Abstract

Non-traumatic spinal cord injuries (NTSCI) constitute 66% of all spinal cord injuries (SCI) in neonates and infants in Australia, and their prevalence is increasing worldwide. NTSCI can result from various factors such as bony growths, vascular conditions, infections, immune disorders, and tumours. Despite efforts to address the root causes, the damage to the spinal cord itself remains untreatable. Research on NTSCI, especially in neonates and infants, is limited compared to traumatic SCI, and there is significant variability in available animal models.Given the scarcity of established neonatal and infant NTSCI models, we have developed and tested a reproducible method involving chronic compression injury to the spinal cord in neonatal rats (n=8). This approach employs a solid 3D-printed wedge spacer positioned under the T10 vertebrae, resulting in sustained spinal cord compressions by 50% and 75% over a 6-week period. We investigated the significance of injury severity and outcomes through comprehensive analyses, including immunohistochemistry, histology, behavioural assessments, and PCR. Despite severe morphological damage to the spinal cord, our findings revealed no consistent significant difference in behavioural outcomes between the injury groups and controls. This study highlights the inherent ability of the neonatal spinal cord to recover function after compression spinal cord injuries.

Unique ID: fens-24/investigating-recovery-neonatal-rats-f17751e5