Subtalar Neutral Special Test

What is it used for?

• Determining the neutral position of the rearfoot for biomechanical assessment and orthotic casting.

How to Perform

• Position: Patient lies prone with feet hanging off the table.
• Action: Grasp the 4th and 5th metatarsal heads with one hand and gently dorsiflex the foot until resistance is felt.
• Palpation: With the other hand, palpate the head of the talus (front of the ankle) on both the medial and lateral sides.
• Movement: Slowly swing the foot side-to-side (supination/pronation) until the talus head feels equal on both sides (not protruding more on one side).

Interpretation of Results

• Observation: This position is "Subtalar Neutral." The angle of the heel relative to the leg is then measured to identify varus or valgus deformities.

References

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