TARGET Post-Approval Study

Inclusion Criteria: * Subject is male or female between ≥ 22 and ≤ 75 years of age. * Subject has moderate to severe chronic intractable pain of the lower limbs resulting from Complex Regional Pain Syndrome (CRPS) types I or II. * Subject has a baseline Visual Analogue Scale (VAS) of ≥ 60 mm for overall pain at the time of the baseline assessment. * Subject is willing and able to comply with the study requirements. * Subject is able to provide written informed consent. Exclusion Criteria: * Subject has an active implantable medical device including but not limited to cardiac pacemakers and cardiac defibrillators. * Subject is currently involved in medically related litigation, including workers compensation. * Subject has a life expectancy of less than one year. * Subject is pregnant or of child bearing potential and not using adequate contraception as determined by the investigator. * Subject has, or plans to have, a spinal cord stimulation system or infusion pump system implanted. * Subject has, or plans to have, a peripheral nerve stimulation system (PNS) or peripheral nerve field stimulation system (PNfS) implanted. * Subject is considered to be a poor surgical or study candidate, which may include, but is not limited to the following: any medical, social, or psychological problem that could complicate the implant procedure and/or recovery from the implant procedure or could complicate the required procedures and evaluations of the study in the judgment of the investigator.