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Cervical Dystonia, Primary clinical trials

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NCT ID: NCT03938363 Completed - Blepharospasm Clinical Trials

Analysis of Gait Before and After Botulinum Toxin Treatment in Patients With Focal Dystonia

GAIT-TOX
Start date: October 23, 2019
Phase: N/A
Study type: Interventional

Efficient gait requires effective postural control, both static and dynamic. Hence, postural disorders may affect gait. Yet, very little is known about the specific effects of focal postural disorders such as cervical dystonia (CD) and blepharospasm (BS) on patients' mobility. The present research therefore aims at analyzing gait characteristics in patients presenting with these conditions in order to document possible gait alterations. In addition, the investigators will explore the effect of botulinum toxin treatment, which the most frequently used therapeutic option, on the patients' gait characteristics. Indeed, while the treatment improves both dystonia and pain, and therefore quality of life, its influence on gait is presently unknown. the investigators aim at filling this knowledge gap

NCT ID: NCT02894359 Completed - Clinical trials for Cervical Dystonia, Primary

Computer Modelling of the Cervical Spine Movements in Cervical Dystonia

STICOB
Start date: October 27, 2016
Phase:
Study type: Observational

Cervical dystonia (CD) is a syndrome characterized by sustained and/or phasic involuntary neck muscle activity causing abnormal head postures and movements. It is the most frequent form of adult focal dystonia. The distribution of dystonic muscles is unique for each patient, explaining the variety of patterns encountered. The therapeutic management of CD is essentially local and symptomatic: Botulinum Neurotoxin injections and/or specific retraining therapy programmes. Therefore, analyzing the characteristics of abnormal head movements and identifying the dystonic muscles are the key points of these treatments. To a better understanding of the posture and movement disorders of head and neck, we wish to establish a three-dimensional (3-D) computer model of cervical spine movements of ten healthy subjects built from images obtained with the "Cone Beam " system. Then we will compare the cervical posture and movements for each of ten CD patients matched in age and genre to the computer model. Comparison with patients' images in the axial plane reconstructed by computer with the 3-D computer model will lead to the description of various patterns of CD. Analysis of the musculoskeletal disturbances in CD should be a help to improve the localization of Botulinum Neurotoxin injection sites as well as retraining programmes.