Systems and methods for implantable electrical stimulation

A system comprising:

• a first implant device configured to engage a spine of a patient and comprising a first electrode;
• a second implant device configured to engage the spine of the patient and comprising a second electrode;
• a power source coupled to the first implant device and the second implant device and configured to provide an electrical current to the first electrode and the second electrode;
• and
• a controller configured to selectively supply power to the first implant device and the second implant device to:
• cause a first electrical stimulation to be output in a first direction from the first implant device to the second implant device;
• and
• cause a second electrical stimulation to be output in a second direction from the first implant device to the second implant device.

A system comprising:

• a screw comprising an electrode and a threading configured to secure the screw with the electrode in a fixed position in a patient;
• a power source coupled to the screw;
• and
• a controller configured to control operation of the power source to selectively deliver an electrical current from the electrode or receive an electrical current with the screw to effectuate a therapeutic plan.