Completion Notice: The ISPR was created by Medtronic to monitor the performance of commercially available products. This registry was initially designed to track performance of Medtronic's implantable infusion and spinal cord stimulation systems beginning in August 2003 and June 2004, respectively. Medtronic DBS Systems were added to the ISPR in June 2009, and Sacral Neuromodulation Systems in April 2010. Medtronic retired the ISPR in April 2016 and merged the data collected from this registry into the Product Surveillance Registry (PSR). Please refer to that record, Clinical Trials identifier: NCT01524276, for further information.