Bioinductive Patch for Full-Thickness Rotator Cuff Tears

This study tests a bioinductive collagen patch placed over large rotator cuff tears during arthroscopic surgery. The patch is designed to stimulate the growth of new tendon tissue, potentially improving healing and reducing re-tear rates for medium to massive rotator cuff tears in the shoulder. You may be eligible if: - You are 18 or older and scheduled for arthroscopic rotator cuff repair - You have a full-thickness medium (1-3cm), large (3-5cm), or massive (over 5cm) rotator cuff tear confirmed by MRI or ultrasound - The tear is chronic and degenerative (not due to a sudden injury) - You have tried at least 6 weeks of physical therapy or structured home therapy without full recovery - You can read and understand English You may NOT be eligible if: - You are having open or mini-open surgery (not arthroscopic) - You had prior shoulder surgery (other than diagnostic arthroscopy) - Your tear is only partial-thickness, very small (under 1 cm), or involves the subscapularis tendon - The tear was caused by an acute trauma - You have an active infection, cancer, or autoimmune disease such as rheumatoid arthritis or lupus Talk to your doctor to see if this trial is right for you.