Methods and systems for treating pelvic disorders and pain conditions

A stimulation system comprising:

• an implantable device comprising:
• a flexible shaft having a proximal end and a distal end, and at least one electrode along the distal end, the flexible shaft comprising a plurality of tines extending therefrom at a position along the flexible shaft proximal of the at least one electrode, wherein the at least one electrode comprises at least one set of segmented electrodes, and wherein the flexible shaft is configured to be implanted adjacent to a nerve in a peripheral nervous system;
• an implantable neuromodulation stimulator (INS) having a housing that is disposed along and integral with the proximal end of the flexible shaft, wherein the housing of the INS and the proximal end of the flexible shaft are a unitary structure;
• and
• an external device comprising a battery, a transmitter, and an antenna, wherein the stimulation system is configured to determine a relative measure of a location of the implantable device using the at least one set of segmented electrodes and electromyography (EMG) to assist in placement of the implantable device.