[Occupational dystonia associated with production line work and PC work]

It is considered that occupational dystonia is associated with fixed abnormal postures or repetitive skilled movements. In our country, occupational dystonia seems to be frequent to production line workers or visual display terminal (VDT) workers. Most of patients with occupational cervical dystonia start with symptoms of stiffness in the neck or shoulder portions. In the occupational health scene, dystonia is treated as cervicobrachial disorder. As for most occupational health staffs, dystonia is an unknown disorder, therefore the patients may not receive appropriate treatments.