I have spasticity in my right leg and a clonus
at the ankle of that leg. I also have a drop
foot (since April) on the right. I should mention that while all of that has been diagnosed, I have not yet been diagnosed with ms.
Clonus is a neurological sign, and is arepetitive reflex motion most often seen in the ankle (it can be seen in the knee and elbow too). My doc found mine when he held the bottom of my foot and flexed it up quickly at the ankle.