Freedom-1 Study for Chronic Knee Pain

Inclusion Criteria: i. Subject is over 18 years of age; ii. Subjects with a history of chronic, function-limiting (m-MPS \>6/10) knee pain from osteoarthritis of at least three months in duration with or without prior surgeries; iii. Subject has been diagnosed with Kellgren-Lawrence Grade II or III knee osteoarthritis, confirmed by X-ray studies conducted in the last year; iv. Subject has been examined and has been deemed to be an appropriate candidate for the procedure, including chronic knee pain in patients post total knee replacement (TKR); v. Subjects who are able to understand this investigation, and give voluntary, written informed consent to participate in this study; vi. Subjects who are able to co-operate with the study procedures and are willing to return to the center for all the required post-operative follow-ups; vii. Documented failure of at least two less invasive treatment modalities including physical therapy, intra-articular steroids and/or oral NSAIDS; viii. Subject has not had recent invasive surgical procedures of the knee within the following intervals in relation to the time of signing Informed Consent:- 2 weeks for steroid injection - 4 weeks for radiofrequency, cryoablation or hyaluronic acid (HA) injection ix. Subject noted good (\> 75%) but only temporary relief for at least 2 hours from an infrapatellar saphenous nerve injection with local anesthetic; x. Subject is deemed to be neuro-psycho-socially appropriate for implantation therapies based of…