[Paradoxical kinesis phenomenon in focal hand dystonia--writer's cramp].

Paradoxical kinesis (PK) phenomenon and its variants, exerting a beneficial influence on dystonia dynamics, are described using self clinical examination of 57 writer's cramp patients. PK was found in all the patients independently of writer's cramp variant, duration and severity. The most frequent writing maneuvers were as follows: hand printed (100%), proximal arm muscles writing (82.5%), individually selected writing instrument (67.5-80%), unusual means (67.5-75%), writing imitation with unlike-pen object (70%), marked papers (52.5%). The beneficial influence of PK phenomenon on dystonia expression may be considered as one of the directions of writer's cramp rehabilitation.