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End-to-side neurorrhaphy with and without perineurium
F Viterbo1, E Teixeira, K Hoshino
1Faculdade de Medicina, Universidade Estadual Paulista/UNESP, São Paulo, Brasil.
Sao Paulo Medical Journal = Revista Paulista De Medicina
|February 25, 1999
Summary
End-to-side neurorraphy with or without the perineural sheath showed no significant differences in nerve regeneration or muscle function. This study compared surgical techniques for nerve repair in rats, finding comparable outcomes regardless of sheath preservation.
Area of Science:
- Neurosurgery
- Regenerative Medicine
- Experimental Neurology
Background:
- Nerve repair techniques are crucial for restoring function after injury.
- The role of the perineural sheath in nerve regeneration following end-to-side neurorraphy requires further investigation.
Purpose of the Study:
- To compare the outcomes of end-to-side neurorraphy with and without the preservation of the perineural sheath.
- To evaluate the impact of perineural sheath removal on nerve regeneration and muscle function.
Main Methods:
- End-to-side neurorraphy was performed on the peroneal nerve of 20 rats, with the perineural sheath removed on the right side and preserved on the left.
- Electrophysiological and histological analyses of nerve and muscle tissues were conducted six months post-surgery.
Main Results:
- No statistically significant differences (p > 0.05) were observed between the right (perineural sheath removed) and left (sheath preserved) sides in electrophysiological responses, muscle weight, nerve fiber counts, or muscle histology.
- Muscle response thresholds, muscle weight, nerve fiber counts, and muscle fiber areas showed no significant variations between the surgical groups.
Conclusions:
- End-to-side neurorraphy with and without the perineural sheath yields comparable morphological and electrophysiological results.
- Perineural sheath preservation does not appear to significantly influence the outcomes of this specific nerve repair model in rats.