Study on early frozen section after nerve repair with "cell surgery" technique

Area of Science:

• Neurosurgery
• Regenerative Medicine
• Histology

Background:

• Nerve repair remains a challenge, with conventional microsuture techniques often leading to suboptimal axonal alignment.
• Early histological changes at nerve anastomotic sites are crucial for understanding successful nerve regeneration.

Purpose of the Study:

• To evaluate the early histological changes following nerve repair using a
• cell surgery
• technique combined with microsuture.
• To compare the efficacy of fibrin glue application before and after nerve thawing in promoting axonal alignment.

Main Methods:

• Twenty-two Sprague Dawley rats underwent sciatic nerve transection and repair.
• Experimental groups included conventional microsuture,
• cell surgery
• with sawing or guillotine-like cuts followed by fibrin glue application (before or after thawing).
• Histological analysis examined axonal alignment at nerve anastomotic sites.

Main Results:

• Fibrin glue welding significantly improved axonal alignment compared to conventional methods.
• Optimal axonal alignment was observed in the central part of the anastomotic site, with minimal peripheral disorganization.
• Nerve coaptation with fibrin glue *before* thawing demonstrated superior results compared to application *after* thawing.

Conclusions:

• The
• cell surgery
• technique shows potential for enhancing nerve repair outcomes.
• Applying fibrin glue for coaptation *before* nerve thawing is a more effective strategy for improving axonal alignment.
• Early histological assessment indicates that this method facilitates better nerve regeneration at the repair site.