Shoulder instability is a chronic condition that causes frequent dislocation of the shoulder joint.
A dislocation occurs when the end of the humerus (ball portion) partially or completely dislocates from the glenoid (socket portion) of the shoulder. A partial dislocation is referred to as a subluxation whereas a complete separation is referred to as a dislocation.
Pain in the shoulder may suggest an injury, which is more common in athletes participating in sports such as swimming, tennis, pitching, and weightlifting. The injuries are caused due to the over usage or repetitive motion of the arms.
In addition to pain, shoulder injuries also cause stiffness, restricted movements, difficulty in performing routine activities and popping sensation.
The break or fracture of the clavicle (collarbone) is a common sports injury associated with contact sports such as football and martial arts, as well as impact sports such as motor racing. A direct blow over the shoulder that may occur during a fall on an outstretched arm or a motor vehicle accident may cause the clavicle bone to break.
Rotator Cuff Tear
Biceps Tendon Rupture
A biceps tendon rupture can either be partial, where it does not completely tear or complete, where it splits in two and is torn away from the bone.
The biceps tendon can tear at the shoulder joint or elbow joint. Most biceps tendon ruptures occur at the shoulder, which is referred to as a proximal biceps tendon rupture. When it occurs at the elbow it is referred to as a distal biceps tendon rupture and is less common.