1. An implantable system, comprising: an implantable lead with a proximal end and a distal end, wherein the distal end is adapted to deliver neural stimulation pulses to a ventral nerve root and a dorsal nerve root; an implantable housing, wherein the proximal end of the lead is adapted to connect to the housing; a neural stimulation circuit in the housing, wherein the neural stimulation circuit is adapted to generate neural stimulation pulses to stimulate the ventral nerve root or the dorsal nerve root using the implantable lead; and a controller in the housing and connected to the neural stimulation circuit, wherein the controller is adapted to control the neural stimulation circuit to deliver a neural stimulation treatment.