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Tardieu scale

Assessment of spasticity

Grade 0

No resistance throughout the course of the passive movement

Grade 1

Slight resistance throughout the course of the passive movement, with no clear catch at precise angle

Grade 2

Clear catch at precise angle, interrupting the passive movement, followed by release

Grade 3

Fatiguable clonus (<10 seconds when maintaining pressure occurring at precise angle)

Grade 4

Infatiguable clonus (>10 seconds when maintaining pressure occurring at precise angle)

Reference

Upper Motor Neurone Syndrome and Spasticity: Clinical Management and Neurophysiology. Ed. MP Barnes, GR Johnson. Cambridge University Press, 2008.