Outcome after stereotactic thalamotomy for dystonia and hemiballismus

Neurosurgery. 1995 Mar;36(3):501-7; discussion 507-8. doi: 10.1227/00006123-199503000-00009.


The outcome after single or staged stereotactic thalamotomies in 17 patients with dystonia and 2 patients with hemiballismus is reviewed. All patients were severely disabled by their movement disorders despite optimal pharmacological therapies. Eight of the patients with dystonia (47%) showed moderate improvement immediately after the procedures. Six of these eight patients maintained their improvement, and two other patients with dystonia improved significantly, during the follow-up period (mean, 37.6 mo). The long-term outcome was better in patients with secondary dystonia (50% moderately or markedly improved at a mean of 41.0 mo) than in patients with primary dystonia (43% moderately or markedly improved at a mean of 32.9 mo). Excellent control was achieved in both of the patients who underwent thalamotomies for hemiballismus.

Publication types

  • Comparative Study
  • Review

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Child
  • Dystonia / surgery*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Movement Disorders / surgery*
  • Postoperative Complications
  • Stereotaxic Techniques*
  • Thalamic Nuclei / surgery*
  • Treatment Outcome