[Brachial plexus birth injuries. An experimental study (author's transl)].

The authors present an experimental study of obstetrical Brachial plexus Palsy. They study traction injury to 16 Brachial pleux. The first lesions were always disruption of the upper roots C5 and C6. After that, the Lower Plexus (C7 - C8 - T1) was disrupted. The two upper roots are usually interrupted and surgical graft seen to be possible. On the Lower Plexus, avulsions are found and intercostal nerves transfer must be performed.