Shoulder blade unslung in knock-down by shell splinter: Hysterical (!) paralysis of arm with anesthesia. Recovery by electricity, massage, and reëducation (dislocation remaining).
Case 404. (Walther, December, 1914.)
A soldier was struck September 27, near Berry au Bac, by a shell fragment in the right scapular region and was thrown, according to his story, 15 meters. Upon entrance at Val-de-Grâce, October 13, the shoulder-girdle was found intact. There was a very painful point in the spinous process of the scapula, suggesting a fracture; but the bone was proved intact on X-ray. The scapula was very mobile, as if unslung from the thorax. The arm was paralyzed. On raising the arm the scapula followed its movements and detached itself completely from the thorax, dislocating upwards with lively pain. The fingers could be pushed under the anterior surface of the scapula, and its internal border proved to be entirely free of attachment. Pressure along this internal border was very painful. It seems as if there had been a tearing of the rhomboid and serratus magnus muscles and probably a part of the latissimus dorsi under the influence of the violent shock conveyed by the shell fragment, which had pushed the scapula forward and upward without injuring the skin.
There was also a complete paralysis of sensation. Paralysis of motion was complete except for the extensor longus of the thumb. This motor paralysis had come on progressively three days after the accident. A radicular paralysis from an evulsion of the plexus was suspected.
Babinski, however, made the diagnosis of psychic paralysis, finding the muscles reacting perfectly to percussion. After a few electric tests with the faradic current voluntary movements were obtained in all the muscles of the arm and hand.
Treatment was then continued by electricity, massage and reëducation, so that all movements soon regained strength. The patient can now himself, by raising his arm, still produce his dislocation, which still provokes a lively pain.