The deltoid muscle originates from the scapula and collarbone and stretches along the shoulder to the top of the forearm. Also this muscle is called the triceps, since it includes three fascicles: anterior, middle and posterior, and in shape it resembles the letter "delta".
As in the diagnosis of many other pathological conditions, the diagnostic algorithm for pain in the shoulder region is simplified by preliminary separation of possible pathological conditions into two groups, depending on the nature of the onset of the disease (acute, gradual).
The normal degree of extension and bending at the elbow ranges from 0 to 150 °. With a bent elbow, supination and rotation are carried out at 90 °. Pain in the elbow and in the middle of the outer part of the hand can be irradiation, from the shoulder joint area.
Pain in the shoulder can be a consequence of ruptures of the tendon cuff (rupture of the tendon of the supraspinatus). The tendon of the supraspinatus, and sometimes also the adjacent muscles, subscapular and subacute, can be ruptured by a sudden thrust (for example, in a fall). A partial break is accompanied by a painful "arch syndrome".
In the doctor's work, complaints of shoulder pain are common. If the pain is severe, patients, as a rule, seek medical help even at night. Complaints about shoulder pain are observed in all age groups, especially in children.
To date, joint pain is one of the first places in the world among the syndromes that occur in the practice of a family doctor. According to statistics, the pain in the joints is to some extent experienced by 80% of the world's population.
