Neurology Book


Supinator Reflex

Aka: Supinator Reflex, Supinator Sign, Inverted Brachioradialis Reflex
  1. Technique
    1. Perform Brachioradialis Reflex
      1. Strike reflex hammer at distal radius overlying radial styloid process region
      2. Observe for flexion at elbow (normal) and fingers (abnormal)
  2. Findings
    1. Normal
      1. Normal Brachioradialis Reflex results in brachioradialis contraction and elbow flexion
    2. Abnormal
      1. No brachioradialis contraction or elbow flexion
      2. Wrist and finger flexion only
  3. Causes
    1. Typically due to C5-C6 spinal cord lesion
    2. Associated with an absent Biceps Reflex and hyperreflexia at the triceps
  4. References
    1. Kane (2020) Am Fam Physician 102(12): 740-50 [PubMed]

Supinator reflex (C0422909)

Concepts Finding (T033)
SnomedCT 246582006
English Radial reflex, Supinator reflex, Supinator reflex (observable entity)
Spanish reflejo supinador (entidad observable), reflejo supinador
Derived from the NIH UMLS (Unified Medical Language System)

You are currently viewing the original '\legacy' version of this website. Internet Explorer 8.0 and older will automatically be redirected to this legacy version.

If you are using a modern web browser, you may instead navigate to the newer desktop version of fpnotebook. Another, mobile version is also available which should function on both newer and older web browsers.

Please Contact Me as you run across problems with any of these versions on the website.

Navigation Tree