Morphology of nerve fiber regeneration along a biodegradable poly (DLLA-ϵ-CL) nerve guide filled with fresh skeletal muscle

Autor: Stefano Geuna, Marcel F. Meek, Michele Fornaro, Artur S.P. Varejão, António M. Cabrita, Maria G. Giacobini-Robecchi
Rok vydání: 2003
Předmět:
Zdroj: Microsurgery. 23:338-345
ISSN: 0738-1085
DOI: 10.1002/micr.10147
Popis: Previous morphological and morphometrical studies showed that fresh-skeletal-muscle-enriched vein segments are good conduits for leading peripheral nerve regeneration. In the present study, we investigated the morphological features of peripheral nerve fibers regenerated along a 10-mm-long biodegradable poly (DLLA-ϵ-CL) nerve guide enriched with fresh skeletal muscle, comparing them to nerve fiber regeneration along 10-mm-long phosphate-buffered saline (PBS)-enriched poly (DLLA-ϵ-CL) tubes. Repaired nerves were analyzed at weeks 6 and 24 postoperatively. Structural and ultrastructural observation showed that good nerve fiber regeneration occurred in both PBS-enriched and fresh-skeletal-muscle-enriched nerve guides, and histomorphometrical analysis of regenerated myelinated fibers revealed no statistically significant differences between the two experimental groups at week 24 after surgery. The employment of fresh-muscle-enriched conduits for the repair of nerve defects is critically discussed in the light of these results. © 2003 Wiley-Liss, Inc. MICROSURGERY 23:338–345 2003
Databáze: OpenAIRE