Inverted supinator reflex

System: Neurological Signs · All neurological signs

What it is — and how it is elicited

Tapping the brachioradialis (supinator) tendon produces flexion of the fingers rather than the normal response.

What a positive finding suggests

Associated with a cervical spinal cord lesion around C5–C6, combining root and cord signs at that level.

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Please note: This page is an educational reference about clinical examination signs. A clinical sign supports — and never replaces — a full clinical evaluation, examination and appropriate testing. A sign being present does not by itself prove a diagnosis, and an absent sign does not rule one out. If you have symptoms that worry you, see a health professional.