Lay Description

The purpose of this study is to determine if your knee pain changes when small amounts of electricity are delivered to the nerves in your leg by a device called the SPRINT PNS System (the study device).


  • Healthy Subjects Needed
  • Mens Health
  • Nervous System
  • Reproductive Health
  • Womens Health
IRB Number
NCT Number registration not required
Open to Enrollment


Eligible Ages
21 and over
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  • At least 21 years old
  • Underwent a primary unilateral total knee replacement procedure
  • Knee pain directly resulting from Total Knee Replacement in affected knee

Exclusion Criteria

  • Current high opioid use
  • Body Mass Index (BMI) > 40 kg/m2
  • Conditions with increased risk of infection
  • Implanted electronic device
  • History of bleeding or clotting disorder.
  • Surgery on the affected knee since the primary Total Knee Replacement
  • Uncontrolled Diabetes Mellitus Types I or II 
  • Pregnancy

Study Design

Arm Groups

Study Contact

Robert Villarreal
(210) 567-4527

Robert Villarreal
(210) 567-4527

Principal Investigator
Maxim Eckmann