Using Peripheral Nerve Stimulation (PNS) to Treat Chronic Post-surgical Pain (CPSP) After Knee Surgery

Exclusion Criteria

• •Patients with a pre-operative history of moderate to high dose use of opioids (≥ 50 morphine milligram equivalents (MME) average per day)
• •Patients taking opioids for reasons other than pain in knee that underwent TKA
• •Patients with arthrofibrosis or indicated for manipulation under anesthesia
• •BMI \>35
• •Uncontrolled Diabetes Mellitus Types I or II, indicated by an HbA1c \>7.0% within the last 3 months
• •Vulnerable population (e.g. pregnant women, prisoners, minors, or employees)
• •Deep brain stimulation (DBS) system, an implanted active cardiac implant, or any other implantable neurostimulator whose stimulus current pathway may overlap the SPRINT stimulator's current pathway.
• •Any other condition that may interfere with the ability to participate in a clinical trial (e.g., anatomy that may interfere with lead placement, nerve damage in affected leg, pain caused by knee implant requiring revision, compromised immune system) as determined by the Investigator
• •Workers Compensation