中国神经再生研究(英文版) ›› 2012, Vol. 7 ›› Issue (29): 2293-2296.

• 原著:周围神经损伤修复保护与再生 • 上一篇    下一篇

不同长度神经片段串联再生室修复坐骨神经缺损的趋化能力

  

  • 收稿日期:2012-03-18 修回日期:2012-06-13 出版日期:2012-10-15 发布日期:2012-10-15

Chemoattractive capacity of different lengths of nerve fragments bridging regeneration chambers for the repair of sciatic nerve defects

Jiren Zhang, Yubo Wang, Jincheng Zhang   

  1. Department of Hand Surgery, First Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, Liaoning Province, China
  • Received:2012-03-18 Revised:2012-06-13 Online:2012-10-15 Published:2012-10-15
  • Contact: Jin-cheng Zhang, Department of Hand Surgery, First Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, Liaoning Province, China zjc850420@hotmail.com
  • About author:Jiren Zhang, Chief physician, Department of Hand Surgery, First Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, Liaoning Province, China

Abstract:

A preliminary study by our research group showed that 6-mm-long regeneration chamber bridging is equivalent to autologous nerve transplantation for the repair of 12-mm nerve defects. In this study, we compared the efficacy of different lengths (6, 8, 10 mm) of nerve fragments bridging 6-mm re-generation chambers for the repair of 12-mm-long nerve defects. At 16 weeks after the regeneration chamber was implanted, the number, diameter and myelin sheath thickness of the regenerated nerve fibers, as well as the conduction velocity of the sciatic nerve and gastrocnemius muscle wet weight ratio, were similar to that observed with autologous nerve transplantation. Our results dem-onstrate that 6-, 8- and 10-mm-long nerve fragments bridging 6-mm regeneration chambers effec-tively repair 12-mm-long nerve defects. Because the chemoattractive capacity is not affected by the length of the nerve fragment, we suggest adopting 6-mm-long nerve fragments for the repair of pe-ripheral nerve defects.

Key words: nerve fragment length, nerve regeneration chamber, bridging, long nerve defect, chemotactic ability, neural regeneration