Study being conducted to learn about upper extremity hypertonia (stiffness) in children and young adults with cerebral palsy. Specifically, they want to learn about ways to measure the stiffness in the joints of hypertonic arms.
Stanford University sponsored study of trihexyphenidyl in children with upper extremity dystonia due to cerebral palsy. It is hypothesized that trihexyphenidyl in doses up to 0.75mg/kg/day would be well-tolerated and show significant changes on the Melbourne scale of upper extremity function.
Stanford trial and study to learn about upper extremity hypertonia (stiffness) in children and young adults with cerebral palsy. Specifically, they want to learn about ways to measure the stiffness in the joints of hypertonic arms. The information the research team will collect includes any physical exams or computer generated data about your arm movements.