Ankle & Foot Bone, Fracture & Joint Pathology Evidence: suggestive

Tuning Fork Test Special Test

Orthopedic Physical Examination & Clinical Assessment Guide

Tuning Fork Test Orthopedic Special Test

What is it used for?

  • Screening for Stress Fractures (e.g., Tibia, Fibula, Metatarsals).

How to Perform

  • Action: Strike a tuning fork (128 Hz or 256 Hz) to make it vibrate.
  • Placement: Place the base of the vibrating fork directly onto the bone at the site of suspected fracture.

Interpretation of Results

  • Positive Test: Sharp, sudden increase in pain at the fracture site.
  • Note: If pain is absent, a stress fracture is less likely, but X-ray/MRI may still be needed.

Diagnostic Accuracy

  • Sensitivity: Variable; good for ruling out fractures when negative.

References

  • Magee, D. J. (2021). Orthopedic Physical Assessment (7th ed.). Elsevier.