title: Movements Mimicking Myoclonus Associated with Spinal Cord Pathology: Is this a "Pure Motor Restless Legs Syndrome".
abstract: BACKGROUND
  The neuroanatomic substrate of restless legs syndrome (RLS) is poorly understood, and the diagnosis is clinically made based upon subjective sensory symptoms, although a motor component is usually present.
  
  
  METHODS
  We report two cases of elderly patients with spinal pathology who were referred by neurologists for myoclonus. Both had semi-rhythmic leg movements that partially improved while standing, but denied any urge to move. These movements improved dramatically with pramipexole, a dopamine agonist used for RLS.
  
  
  CONCLUSIONS
  We propose that this "myoclonus" is actually the isolated stereotypic motor component of RLS.
authors: University of Texas Health Science Center at Houston, Houston, TX 77025, United States of America.
authors: William G
authors: WG
authors: Ondo
keywords: Restless legs syndrome; dopamine agonists; dyskinesia while awake; myoclonus; periodic limb movements