# Flat foot flexibility

Flat foot flexibility

Use the windlass and Jack’s tests to distinguish a flexible from a fixed flat foot ( Figure 35.40 ). /uni25CF Windlass test . Ask the patient to stand on their toes and observe the arch of  the foot on the medial aspect. As soon as the patient stands on their toes, the arch forms. Failure of  this indicates a fixed flat foot. /uni25CF Jack’s test . With the patient standing, lift up the great toe. The arch should form in the flexible flat foot. 

(b)
Figure 35.39 (a, b)
Testing subtalar joint
/f_l
exibility.

Flat foot flexibility

Use the windlass and Jack’s tests to distinguish a flexible from a fixed flat foot ( Figure 35.40 ). /uni25CF Windlass test . Ask the patient to stand on their toes and observe the arch of  the foot on the medial aspect. As soon as the patient stands on their toes, the arch forms. Failure of  this indicates a fixed flat foot. /uni25CF Jack’s test . With the patient standing, lift up the great toe. The arch should form in the flexible flat foot. 

(b)
Figure 35.39 (a, b)
Testing subtalar joint
/f_l
exibility.