RT Book, Section A1 McMahon, Patrick J. A2 McMahon, Patrick J. A2 Skinner, Harry B. SR Print(0) ID 1181615836 T1 Sports Medicine: Upper Extremity T2 Current Diagnosis & Treatment in Orthopedics, 6e YR 2021 FD 2021 PB McGraw-Hill Education PP New York, NY SN 9781260135978 LK accessmedicine.mhmedical.com/content.aspx?aid=1181615836 RD 2024/03/28 AB The shoulder is the third-most commonly injured joint during athletic activities, after the knee and the ankle. Sports-related injuries of the shoulder may result from a direct traumatic event or repetitive overuse. Any activity that requires arm motion, particularly overhead arm motion such as throwing, may stress the shoulder, resulting in injury. The glenohumeral joint of the shoulder is mobile partly from minimal containment of the humeral head by the shallow and smaller glenoid fossa. The trade-off for this mobility is less structural restraint to undesirable and potentially damaging movements. Thus, a fine balance must be struck to maintain full range of shoulder motion and normal glenohumeral joint stability.