Related Experiment Videos
Dynamic balance function in phasic cervical dystonia following Botulinum toxin therapy
J Müller1, G Ebersbach, J Wissel
1Department of Neurology, University of Innsbruck, Innsbruck, Austria. joerg.mueller@uibk.ac.at
Movement Disorders : Official Journal of the Movement Disorder Society
|December 18, 2001
Summary
Botulinum toxin (BtxA) treatment effectively reduces head movements in phasic cervical dystonia (CD). However, dynamic balance impairments persist despite treatment, suggesting complex sensorimotor processing issues in phasic CD.
Area of Science:
- Neurology
- Movement Disorders
- Neurorehabilitation
Background:
- Previous research indicated normal dynamic balance in tonic cervical dystonia (CD) but impaired balance in phasic CD post-Botulinum toxin (BtxA) treatment.
- Phasic CD is characterized by intermittent, irregular head movements.
Purpose of the Study:
- To investigate if symptomatic Botulinum toxin A (BtxA) treatment influences the impaired dynamic equilibrium observed in patients with phasic cervical dystonia (CD).
Main Methods:
- Dynamic balance was assessed in 20 phasic CD patients using a stabilometer (dynamic platform with a cylindrical curved base).
- Balance was measured 4 weeks post-BtxA treatment, evaluating platform displacement and amplitude with eyes open and closed, comparing pre- and post-treatment data.
Main Results:
- Despite clinically significant reduction in head movements following BtxA, no significant improvement was observed in dynamic balance measures.
- No correlation was found between the degree of clinical improvement from BtxA and changes in dynamic balance parameters.
Conclusions:
- Persistent dynamic balance impairment after effective BtxA therapy in phasic CD suggests disequilibrium may not solely stem from head oscillations.
- Findings support the hypothesis of distinct sensorimotor processing mechanisms underlying tonic versus phasic CD.