Novel Treatment for Rotator Cuff Tears

The focus of this study is to examine changes in pain scores, strength, and range of motion over time following an ultrasonic tenotomy on a partial tear (\

Inclusion Criteria: \- Evidence of partial tear (\< 50%) of the supraspinatus tendon on MRI. Exclusion Criteria: * A tear of the supraspinatus tendon greater \> 50% and any areas of full thickness tearing, concomitant tears \> 25% of other rotator cuff tendons (infraspinatus, teres minor or subscapularis), or acute tear of the glenoid labrum. * Evidence of systemic illness/infection requiring oral or IV antibiotics during the recruitment period. * Evidence of overlying skin infection or lesion at the proposed device insertion point on the shoulder. * Previous corticosteroid injection within three months. * Those individuals less than 25 and greater than 75 years of age will be excluded.