Epidemiology, genetics, and biological factors of rotator cuff tears -- Biomechanics of the rotator cuff: european perspective -- Role of biomechanics in rotator cuff pathology: North American perspective -- The scapula in rotator cuff disease -- Instability and rotator cuff tear -- Growth factors and tendon healing -- Autologous blood products in rotator cuff repair -- Tendinopathy of the long head of the biceps -- Conservative treatment and rotator cuff tear progression -- Operative management of partial- and full-thickness rotator cuff tears -- Subscapularis tears -- Single- and double-row repair for rotator cuff tears-biology and mechanics -- Arthroscopic transosseous rotator cuff repair -- Treatment options for chronic retracted degenerative rotator cuff tears -- Synthetic augmentation in massive rotator cuff tears -- Understanding and preventing complications in repairing rotator cuff tears