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Shoulder impingement syndrome is a syndrome involving tendonitis (inflammation of tendons) of the rotator cuff muscles as they pass through the subacromial space, the passage beneath the acromion. It is particularly associated with tendonitis of the supraspinatus muscle. [1] This can result in pain, weakness, and loss of movement at the ...
The aortic surgery dates back to Greek surgeon Antyllus, who first performed surgeries for various aneurysms in the second century CE. Many advancements of OAS have been developed in the past century. In 1955, cardiovascular surgeons, Drs. Michael DeBakey and Denton Cooley performed the first replacement of a thoracic aneurysm with a homograft.
In a typical case of a dislocated shoulder, a strong force that pulls the shoulder outward (abduction) or extreme rotation of the joint pops the ball of the humerus out of the shoulder socket. Dislocation commonly occurs when there is a backward pull on the arm that either catches the muscles unprepared to resist or overwhelms the muscles.
The condition is characterised by a posture with vagi at the head sitting somewhat forward of the shoulders (i.e., the ear lobe is anterior to a vertical line through the point of the shoulder (acromion process)). This can be very marked, with the back of the skull positioned anterior to the breastbone (sternum). The chin is poked forward.
Movements of the shoulder joint. [1] Movement Muscles Origin Insertion Flexion (150°–170°) Anterior fibers of deltoid: Clavicle: Middle of lateral surface of shaft of humerus: Clavicular part of pectoralis major: Clavicle Lateral lip of bicipital groove of humerus Long head of biceps brachii: Supraglenoid tubercle of scapula
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Shoulder anatomy, front view Shoulder anatomy, back view. The rotator cuff is an anatomical term given to the group of four muscles and their tendons that act to stabilize the shoulder. [3] These muscles are the supraspinatus, infraspinatus, teres minor and subscapularis and that hold the head of the humerus in the glenoid cavity during ...
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