Heart-related causes. Examples of heart-related causes of chest pain include: Heart attack. A heart attack is a result of a blood clot that's blocking blood flow to your heart muscle. Angina. Thick plaques can gradually build up on the inner walls of the arteries that carry blood to your heart.
Incidence and Prevalence: The shoulder is the most commonly dislocated joint in the body, and glenohumeral dislocation accounts for more than half of all joint dislocations in the US. Approximately 95% of the glenohumeral dislocations are anterior dislocations, and 4% are posterior dislocations (Park). An international estimate of the annual incidence of glenohumeral dislocation is 17 per 100,000 individuals (Wilson).
Anterior shoulder instability is the major cause of dislocations.This is due to weakness of the anterior structures of the glenohumeral joint: the anterior capsule, glenohumeral ligaments, rotator cuff tendons, and glenoid labrum.The most common cause of shoulder dislocation is a fall on an outstretched arm.