LONG-TERM EVALUATION OF NERVE REGENERATION IN A BIODEGRADABLE NERVE GUIDE

被引：108

作者：

DENDUNNEN, WFA ^{[1
]}

VANDERLEI, B ^{[1
]}

SCHAKENRAAD, JM ^{[1
]}

BLAAUW, EH ^{[1
]}

STOKROOS, I ^{[1
]}

PENNINGS, AJ ^{[1
]}

ROBINSON, PH ^{[1
]}

机构：

[1] UNIV GRONINGEN,CTR BIOMED TECHNOL,DIV BIOMAT & BIOCOMPATIBIL,OOSTERSINGEL 59,9713 EZ GRONINGEN,NETHERLANDS

来源：

MICROSURGERY | 1993年 / 14卷 / 08期

关键词：

D O I：

10.1002/micr.1920140808

中图分类号：

R61 [外科手术学];

学科分类号：

摘要：

Nerve regeneration using artificial biodegradable conduits is of increasing interest. The aim of this study is to evaluate the regeneration and maturation of a nerve after long-term implantation (2 years) of a biodegradable poly-L-lactide/poly-E-caprolactone (PLLA/PCL) copolymeric nerve guide in the sciatic nerve of the rat. After harvesting, we evaluated both the regenerated nerves and the controls, using light microscopy, transmission electron microscopy, and morphometric techniques. Remnants of biomaterial were still present after 2 years of implantation, but the foreign body reaction was very mild at this stage, due to the rounded shapes of the polymer debris. Morphometric analysis showed significant differences between the regenerated nerve and the normal sciatic nerve: the number of myelinated fibers is higher, and the mean fiber diameter of the myelinated fibers in the regenerated nerve is smaller. In conclusion, the results demonstrate that the new PLLA/PCL nerve guide can provide optimal conditions for regeneration and maturation of damaged nerves. (C) 1993 Wiley-Liss, Inc.

引用

页码：508 / 515

页数：8

共 43 条

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