Gait and posture assessments of a patient treated with deep brain stimulation in dystonia using three-dimensional motion analysis systems

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Kinesiologic analysis of gait disorders, postural instabilities and abnormal movementsis quite difficult to assess objectively by clinical observation, such as by specificscale and video recordings. In this study, we reported one of the aspects of the usefulnessof three-dimensional motion analysis (Vicon Systems, Oxford, United Kingdom), whichcan measure inclusive data of movement disorders and substitute for conventional assessments.A 49-year-old man who had various dystonic symptoms, mainly on his left sideof the body, responded well to deep brain stimulation (DBS). The examination quantifiedhow the involuntary movements or other symptoms with dystonia changed before andafter treatments.