Physical examination maneuver

Physical Exam

Ankle Clonus

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Video coming September 2026

How to Perform

With the patient's leg relaxed and the knee slightly flexed, briskly dorsiflex the foot and hold it in sustained dorsiflexion. Observe for clonus — rhythmic, repeating beats of alternating plantarflexion and dorsiflexion; note the number of beats and whether they are unsustained or sustained (continuing while the stretch is held).

How to Interpret

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This test’s findings are all below your current evidence filter.

References

  • McGee S. Evidence-Based Physical Diagnosis. 6th ed. Philadelphia, PA: Elsevier; 2025.

Related Systems / Regions

Lower ExtremitiesNeurological

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