Inclusion Criteria:  Males or females 18-75 years 1-5 cm full thickness tear of the supraspinatus and/or infraspinatus tendon(s) that is fully reparable by double row technique as confirmed at surgery  Exclusion Criteria:  A 35 point exclusion criteria covers a variety of shoulder, musculoskeletal and general heath related conditions such as:  prior shoulder surgery (including rotator cuff repair) symptomatic cervical spine disease a frozen shoulder-- defined as a loss of passive range of motion (ROM) of more than 20° in any plane compared to the contralateral shoulder advanced (grade 3 or 4) glenohumeral arthritis worker's compensation cases isolated subscapularis tears.