[The damage of the ulnar nerve on the level Guyon's canal--four cases report].

The damage of the ulnar nerve on a level Guyon's canal is a rare occur in clinical practice. The presence of pathology mass, injury or long-lasting pressure the most often be caused. The authors represent four patients from this syndrome, in three cases the damage the long-lasting pressure of nerve was caused in neighborhood Guyon's canal, and in one injury of neighborhood of wrist. In therapeutic-rehabilitation management was recommended the avoidance the loading of adjacent of wrist. In two cases in catamnestic examination after retreat provocative factor, the symptoms of damage of ulnar nerve revealed. The principles of diagnosis and treatment in adjacent of wrist the damages of ulnar nerve in article were presented.