Conical Chitosan Conduits Combined With Methylcobalamin for Sciatic Nerve Transposition Repair
Qicheng Li1,2, Fengshi Zhang1,2, Shiyan Liu3
1Department of Trauma and Orthopedics, Peking University People's Hospital, 100000 Beijing, China.
Journal of Integrative Neuroscience
|July 4, 2025
Summary
Conical chitosan conduits combined with methylcobalamin (MeCbl) effectively promote nerve transposition repair in rats with multiple distal nerve injuries. This approach enhances nerve regeneration and functional recovery.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Neuroscience
Background:
- Peripheral nerve injuries pose challenges for simultaneous repair and regeneration of multiple distal nerves.
- Conventional cylindrical nerve conduits are inadequate for nerve transposition repair.
- Conical chitosan conduits offer a novel solution for complex nerve repair scenarios.
Purpose of the Study:
- To evaluate the efficacy of conical chitosan conduits for nerve transposition repair.
- To assess the synergistic effect of methylcobalamin (MeCbl) as an adjuvant treatment.
- To investigate the promotion of nerve regeneration in multiple distal nerve injuries.
Main Methods:
- Utilized conical chitosan conduits to bridge nerve defects in a rat model.
- Administered varying concentrations of methylcobalamin (MeCbl) as post-surgical treatment.
- Conducted gait analysis, electrophysiology, and histological assessments at 16 weeks.
Main Results:
- Conical conduits prevented neuroma formation.
- Methylcobalamin (MeCbl) administration significantly improved motor function, electrophysiology, and nerve fiber regeneration.
- Histological analyses confirmed enhanced muscle reinnervation and morphology.
Conclusions:
- Conical chitosan conduits are effective for nerve transposition repair.
- Methylcobalamin (MeCbl) significantly enhances nerve regeneration and functional outcomes.
- This combined approach shows promise for treating multiple distal nerve injuries.
