Chadoke's sign

Chaddock sign is a pathological reflex. Chaddock sign positive is the most important sign of pyramidal tract damage. The positive manifestation was the dorsiflexion of the big toe, and the remaining four toes were fanned out. Prepare a blunt tip before the test, this object should not be too sharp, so as not to puncture the skin on the outside of the patient's foot. When using the blunt tip to examine the skin on the lateral side of the patient's foot with a blunt tip, gently stroke it from the back to the front to prevent puncture of the patient's skin. Basic Information Specialist classification: neurological examination classification: neuroelectrophysiology Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: In normal times, the blunt tip is used to gently pat the skin on the lateral side of the foot without dorsiflexion of the toe. Positive: The Chaddock sign showed positive dorsiflexion of the big toe, and the remaining four toes flexed and fanned out, indicating damage to the pyramidal tract. Tips: Before you check, you should prepare a blunt tip (not too sharp) to avoid puncture the skin on the outside of the patient's foot. Normal value In normal times, the blunt tip is used to gently pat the skin on the lateral side of the foot without dorsiflexion of the toe. Clinical significance Abnormal results: Chaddock's sign showed positive dorsiflexion of the big toe, and the remaining four toes flexed and fanned out, indicating damage to the pyramidal tract. People in need of examination: Patients suspected of having damage to the pyramidal tract. Positive results may be diseases: pediatric pyramidal dysfunction syndrome, extrapyramidal damage considerations Contraindications before examination: A blunt tip should be prepared before the examination. This object should not be too sharp to avoid puncture the skin on the outside of the patient's foot. Requirements for examination: When using the blunt tip to mark the skin on the lateral side of the patient's foot with a blunt tip, gently stroke it from the back to the front to prevent puncture of the patient's skin. Inspection process The patient was placed in a supine position with both lower extremities straightened, and a blunt tip was used to gently stroke the lateral part of the dorsal dorsum of the foot. Not suitable for the crowd Inappropriate population: Patients with disabilities in the lower limbs, illness, or injury to the foot itself. Adverse reactions and risks Nothing.