The Chaddock reflex is a diagnostic reflex in neurology similar to the Babinski reflex
It was identified by Charles Gilbert Chaddock in 1911.
How to elicit Chaddock’s sign /
The reflex is elicited by stroking along the lateral aspect of the foot, below the lateral malleolus from proximal to distal
Stimulation over the lateral malleolus causes the big toe of an adult to reflexively point upwards
Clinical significance
Eventhough the response is similar site of stimulation is different .stimulation over the lateral malleolus, instead of the base of the foot is done in chaddok sign
It was identified by Charles Gilbert Chaddock in 1911.
How to elicit Chaddock’s sign /
The reflex is elicited by stroking along the lateral aspect of the foot, below the lateral malleolus from proximal to distal
Stimulation over the lateral malleolus causes the big toe of an adult to reflexively point upwards
Clinical significance
- This is a sign indicating damage to the corticospinal tract
- Chaddock’s sign is similar to a Babinsky Sign
- This sign may be useful in eliciting the Babinski response when the patients are uncooperative or in patients whose soles are extremely sensitive
- This sign imply an increase in the reflexogenous zone and denote responses from different parts of the receptive field.
Eventhough the response is similar site of stimulation is different .stimulation over the lateral malleolus, instead of the base of the foot is done in chaddok sign