Supraspinatus Muscle - the most common area to find calcific deposits   In most cases, calcific tendinitis can be treated using non-surgical techniques, including NAT     If you’re experiencing stiffness and shoulder pain and it’s making it hard for you to sleep at night, you could have Calcific Tendinitis. With this condition, 1- 2 centimeter deposits of calcium form in the tendons of the rotator cuff. As the calcium accumulates, the area becomes very tender and it is difficult to lift your arm without experiencing pain and stiffness.  The pain is typically felt around the rotator cuff muscles (usually supraspinatus) and is often...