Clonus Sign for Cervical Myelopathy

Clonus Sign for cervical myelopathy

• The Clonus Sign is involuntary, sustained, rhythmic beating movements of the ankle with firm, passive stretch of the achilles tendon gastrocnemius complex.
• This clonus is associated with an upper motor neuron lesion.

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA