Long-term improvement of musician's dystonia after stereotactic ventrooralthalamotomy.

Musician's dystonia is a task-specific movement disorder that causes twisting or repetitive abnormal finger postures and movements, which tend to occur only while playing musical instruments. Such a movement disorder will probably lead to termination of the careers of affected professional musicians. Most of the currently available treatments have yet to provide consistent and satisfactory results. We present the long-term follow-up results of ventrooralthalamotomy for 15 patients with musician's dystonia.