Experimental evaluation shows chronic allodynia in contralateral paws of rats after nerve injury, highlighting implications for neuropathic pain understanding.
Key Points
Contralateral allodynia became statistically significant by day 10 post-surgery, indicating a delayed pain response.
Mechanical and cold allodynia were observed in both paws of the rats, with lower intensity in the contralateral side.
Twenty-three male Sprague-Dawley rats underwent spinal nerve ligation, compared with a sham group to assess pain development.
These findings suggest that contralateral pain may arise from extraterritorial mechanisms, impacting future pain management strategies.