Duchenne - Arba paralysis is paralysis of the muscles of the shoulder girdle and shoulder and impaired sensitivity on the outer surface of the shoulder, developing as a result of lesions of the upper brachial plexus. Etiology: trauma, infection , rarely osteochondrosis of the spine (see). Often, the brachial plexus is damaged during childbirth, when the obstetrician inserts a finger under the fetus’s arm to release the shoulder, when applying forceps, by sharp bends of the fetal head. The disease is manifested by pains in the shoulder and shoulder girdle, swelling of the shoulder joint . Movement in the shoulder joint is limited or impossible. The arm is turned inwards, flexion of the forearm is impaired, subluxation in the shoulder joint is possible. In case of traumatic damage with a complete rupture of the roots, no restoration of movements is observed, causalgic pains may appear (see Causalgia).
Treatment . Immobilization of the hand on the scarf, shoulder massage, local heat treatments, oral analgin, amidopyrine (pyramidone), antipyrine in usual doses. From the second week of paralysis, physiotherapy, therapeutic exercises , injections of vitamins B1 (5% solution 1 ml intramuscularly), B12 (200 μg intramuscularly), prozerin (0.015 g 2-3 times a day). In case of traumatic injury, hospital treatment is necessary.
See also Dejerin-Klumpke paralysis.