1) Massive rotator cuff tears lower the functional capacity of the shoulder and can cause clinical symptoms when functional demands exceed capacity.
2) Treatment aims to restore equilibrium between demands and capacity by lowering demands, increasing capacity, repairing the cuff, or using tendon transfers or reverse shoulder arthroplasty.
3) Complete release of the torn tendons from surrounding structures is required to properly assess reparability before attempting repair without tension or considering alternative treatments.