Outcome Following Surgery to Repair Rotator Cuff Tears

Inclusion Criteria: * 1\. Diagnosis of rotator cuff tear which will involve one of the following:1) history of shoulder pain or weakness 2) ability to illicit pain or weakness with one of the following signs: tenderness of the rotator cuff insertion, palpable crepitus of the subacromial bursa or a palpable defect of the cuff insertion, impingement signs and weakness of the rotator cuff musculature 3) radiological evidence of rotator cuff tear from ultrasound, arthrogram or MRI. Failed non-operative treatment. Size of tear of less than 5 cm and involving 2 or fewer tendons Exclusion Criteria: * Clinical:1. Tear as defined by significant muscular wasting, inability to actively forward-flex (strength grade 2/5 or worse), positive drop sign or hornblowers 2. Significant tenderness of acromioclavicular or sternoclavicular joints on affected side3. Presence of comorbid shoulder instability or evidence of SLAP lesion4. Previous surgery on affected shoulderRadiological:1. Bony abnormality on standardized series of x-rays consisting of a minimum of an antero-posterior view, lateral \“Y\” view in the scapular plane, and an axillary view.2. Presence of massive cuff tear on MRI or ultrasound (defined as \> 5 cm or greater than 2 tendons torn).Arthroscopic:1. Presence of massive cuff tear as defined above on arthroscopic examination of the joint 2. Presence of comorbid conditions: Bankart lesion, SLAP lesion3. Inability to complete the repair arthroscopically (eg. partial repair by marginal convergence without direct repair to bone)Other:Patients who have any contraindication to MRI (including claustrophobia, intracranial aneurism clip, cardiac pacemaker, middle ear prosthesis, metallic heart valve prosthesis, prior metal fragment in eye (intraocular lens implant) etc.