The Oolo-Austin Trigenics (OAT) procedure is very much a “non-surgical operation”. As a result, the first pain that the patient will experience is the sharp pain due to the dissection of the adhesive tissues in the frozen shoulder. The majority of this dissection (and the corresponding pain) lasts only a few minutes. There will also be some additional pain during the remainder of the 45-90 minute procedure. Although the OAT patients’ pain is minimized through medication, patients may still experience various levels of pain depending on their individual pain thresholds.