Dorsal root entry zone radiofrequency lesion for pain relief in brachial plexus avulsion.

Brachial plexus root avulsion is one of the important causes of intractable pain in young individuals following road traffic accidents. A procedure using radiofrequency coagulation lesion of the substantia gelatinosa of Rolando (Nashold's procedure) was performed in seven patients with excellent relief of pain in two, good relief in three and poor result in two patients.