337 Massive Rotator Cuff Tears Augmented with a Subacromial Balloon Spacer: Does it Reduce the Retear Rate? A Prospective Study

338 Antioxidants Reduce Oxidative Stress and Accelerate Tendon-to-Bone Healing after Rotator Cuff Repair

339 To Patch or Not – A Comparative Cohort Study of Revision Rotator Cuff Repairs With versus Without an Arthroscopically-Inserted Onlay Bioinductive Implant

340 Liposomal Bupivacaine + Bupivacaine versus Bupivacaine Interscalene Nerve Block Effect on Pain after Arthroscopic Rotator Cuff Repair: A Randomized Control Trial

341 Multiplanar Analysis of Proximal Humerus Anatomy of Patients with Rotator Cuff Arthropathy and Relevance to Reverse Shoulder Press-Fit Stems