A shoulder sprain is stretching or partial tearing of the ligaments and capsule that support the shoulder, specifically, the glenohumeral joint. Ligaments are strong bands of tissue that connect bones to each other. The glenohumeral joint is the meeting of the upper arm bone, humerus, and the cup of the shoulder blade.
Shoulder instability is a condition in which the upper-end of the humerus (the upper arm bone) slides partially or completely out of the shoulder socket.
(Rotator Cuff Tear; Impingement Syndrome)
Rotator cuff injury may include tendinitis, strain, or tear of the rotator cuff. The rotator cuff is made up of muscles and four separate tendons that fuse together to surround the shoulder joint.
(Dislocated Shoulder; Glenohumeral Dislocation)
A shoulder dislocation occurs when the head of the humerus (upper arm bone) pops out of the shallow shoulder socket of the scapula (called the glenoid). This can happen when a strong force pulls the shoulder upward or outward, or from an extreme external rotation of the humerus.
(Broken Collarbone)
A clavicle fracture is a break in the clavicle bone (also called the collarbone). It connects the sternum (breastplate) to the shoulder.
