The pectoralis major is the main chest muscle involved in pushing motions with the arms. Often called the “pec” muscle, it connects the collarbone, breastbone, ribs, and abdominals to the upper arm bone by its tendon.
Pectoralis Major Tendon Tears
Because the pectoralis major is such a powerful muscle, injuries are not that common. Weightlifting, especially bench pressing, athletic injuries, or heavy lifting activities can strain the muscle and cause the pectoralis major tendon to tear.
Most pectoralis major tendon tears occur from forceful injuries. Although rest, ice, medication, and a shoulder sling can help manage pain after injury, many cases require surgery to restore strength to the chest and arm.
During surgery for a pectoralis major tendon tear, an incision is made along the front of the shoulder. This allows a surgeon to access the tendon and reattach it to the upper arm bone with sutures, anchors, or metal buttons.