[Experimental study of the trophic effects of reinnervation of pedicled muscle flaps].
Any transplanted muscle flap undergoes atrophy to an extent depending mainly on its innervation. Other factors such as the tension at rest and the duration of ischemia play a secondary role. An experimental study was carried out in rats to quantitatively assess the extent of atrophy according to the mode of transplant reinnervation. The gracilis muscle was used as an experimental model of pedicled flap after verifying the axial nature of its vasculature. Results were assessed after three months from a histological point of view and in terms of postoperative weight in four different groups of 13 rats. The first three groups reproduced situation encountered in clinic: intact nerve, sutured nerve, resected nerve. A graft sensory neurotization technique was implemented in the fourth group by diverting a neighboring sensory nerve. The best trophic results were obtained when the motor nerve remained continuous. The sensory neurotization technique did not significantly influence the trophic evolution after three months.
Dautel
G
G
Service de Chirurgie D, Hôpital Jeanne-d'Arc, Dommartin-les-Toul.
Braga da Silva
J
J
Floquet
J
J
Merle
M
M
D000818:Animals; D001284:Atrophy; D009132:Muscles / Q000294:innervation* / Q000473:pathology / Q000637:transplantation; D011184:Postoperative Period; D051381:Rats; D013524:Surgical Flaps; D013997:Time Factors
Etude expérimentale des effets trophiques de la réinnervation des lambeaux musculaires pédiculés.