The purpose of this study is to gather information about how knee pain changes when small amounts of electricity are delivered to the nerves in the leg. This study will involve the use of a Peripheral Nerve Stimulation (PNS) System that is made by SPR Therapeutics (the sponsor of the study). The SPRINT PNS System was cleared by the FDA for up to 60 days of use in the back and/or extremities for the management of acute and chronic pain.
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Reduction in Average Pain Intensity: Number of Participants With ≥ 50% Reduction in Average Pain Intensity
Timeframe: Baseline and 5 to 8 weeks post-Start of Treatment (SOT)
Study-Related Adverse Device Effects
Timeframe: Up to 13 months for each Group 1 participant and up to 16 months for Group 2 participants that opted to cross over (time from baseline to last study visit)