Chaddock reflex

The Chaddock reflex is a diagnostic reflex similar to the Babinski reflex. Chaddock's sign is present when stroking of the lateral malleolus causes extension of the great toe, indicating damage to the corticospinal tract. ^[1]

It was identified by Charles Gilbert Chaddock in 1911.^[2]

References

Head, general	Battle's sign Broca aphasia Kernig's sign Macewen's sign Myerson's sign Stroop test Wada test Dix-Hallpike test Hirano body
Multiple sclerosis	Dawson's fingers Lhermitte's sign Charcot's neurologic triad Uhthoff's phenomenon
Other	Romberg's test increased intracranial pressure Cushing's triad Miller Fisher test

Combination	Jendrassik maneuver
Lower limb	Babinski sign Chaddock reflex Oppenheim's sign Westphal's sign
Upper limb	Hoffmann's sign

Other torso/limbs

Upper limb	Froment's sign carpal tunnel syndrome Tinel sign Phalen maneuver
Lower limb	Abadie's sign of tabes dorsalis Gowers' sign Hoover's sign Lasègue's sign Trendelenburg's sign
Torso	Beevor's sign
General	Todd's paresis Jolly's test

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