Neurovascular Pedicles of the Tibialis Anterior Muscle in Children
Lopes,M. C. H
The importance of the tibialis anterior muscle in infantile orthopedic transposition surgeries, as in myelomemngoceles, it bases this research about the neurovascular pedicles of the tibialis anterior muscle. The study was conducted on 34 legs of human cadavers that were one year old or younger at the time of death. It was observed that the tibialis anterior muscle most frequently presented from 7 to 10 arterial branches (52.4%). In 97.1% of cases these branches were derived from the anterior tibial artery. In one case the anterior tibial artery was missing and the muscle was supplied by the fibular artery. Thirty-nine and seven tenths percent of arterial branches entered the superior third of the muscle; the middle third received 40.1% of the branches and the inferior third received 20.2% of the branches. Thedeep fibular nerve exclusively supplied the innervation, which in91.2% of cases, gave off from 2 to 4 branches to the muscle, mainly to the superior (46.2%) and middle third (43.0%). Most frequently, there were two neurovascular pedicles supplying the superior third and one supplying the middle third.