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Song Lyrics by Elbow
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Who is Elbow
When the arm is extended, with the palm facing forward or up, the bones of the upper arm (humerus) and forearm (radius and ulna) are not perfectly aligned. The deviation from a straight line occurs in the direction of the thumb, and is referred to as the "carrying angle".[22] The carrying angle permits the arm to be swung without contacting the hips. Women on average have smaller shoulders and wider hips than men, which tends to produce a larger carrying angle (i.e., larger deviation from a straight line than that in men). There is, however, extensive overlap in the carrying angle between individual men and women, and a sex-bias has not been consistently observed in scientific studies.[23] The angle is greater in the dominant limb than the non-dominant limb of both sexes,[24] suggesting that natural forces acting on the elbow modify the carrying angle. Developmental,[25] aging and possibly racial influences add further to the variability of this parameter. Pathology[edit] Left: Lateral X ray of a dislocated right elbowRight: AP X ray of a dislocated right elbow The types of disease most commonly seen at the elbow are due to injury. Tendonitis[edit] Two of the most common injuries at the elbow are overuse injuries: tennis elbow and golfer's elbow.[26] Golfer's elbow involves the tendon of the common flexor origin which originates at the medial epicondyle of the humerus (the "inside" of the elbow).[26] Tennis elbow is the equivalent injury, but at the common extensor origin (the lateral epicondyle of the humerus).[26] Fractures[edit] There are three bones at the elbow joint, and any combination of these bones may be involved in a fracture of the elbow. Patients who are able to fully extend their arm at the elbow are unlikely to have a fracture (98% certainty) and an X-ray is not required as long as an olecranon fracture is ruled out.[27] Acute fractures may not be easily visible on X-ray.[28] Dislocation[edit] X-ray of ventral dislocation of the radial head. There is calcification of annular ligament, which can be seen as early as 2 weeks after injury.[29] Elbow dislocations constitute 10% to 25% of all injuries to the elbow. The elbow is one of the most commonly dislocated joints in the body, with an average annual incidence of acute dislocation of 6 per 100,000 persons.[30] Among injuries to the upper extremity, dislocation of the elbow is second only to a dislocated shoulder. A full dislocation of the elbow will require expert medical attention to re-align, and recovery can take approximately 6 weeks.[citation needed] Infection[edit] Infection of the elbow joint (septic arthritis) is uncommon. It may occur spontaneously, but may also occur in relation to surgery or infection elsewhere in the body (for example, endocarditis).[31] Arthritis[edit] Elbow arthritis is usually seen in individuals with rheumatoid arthritis or after fractures that involve the joint itself. When the damage to the joint is severe, fascial arthroplasty or elbow joint replacement may be considered.[32] Bursitis[edit] Main article: Olecranon bursitis Olecranon bursitis, tenderness, warmth, swelling, pain in both flexion and extension-in chronic case great flexion-is extremely painful.
Data taken from WikiPedia.