First metatarsal skeletal
Beginning on palpation of the medial aspect of the foot we start with the first metatarsal head. Place your index finger on the plantar aspect of the proximal phalanx of the great toe and extend or dorsiflex the toe from this point. Using the index finger of your other hand, you will now be able to palpate the head of the first metatarsal which becomes prominent plantarly when the 1st MPJ is dorsiflexed. Moving proximally from the head of the first metatarsal the medial, dorsal and inferior surfaces of the first met shaft are now palpable beneath the skin. Similarly to the 5th metatarsal you will note that the inferior surface of the first metatarsal is concave longitudinally. By sliding your finger between the first and second toes and then proximally into the first metatarsal interspace the lateral surface of the first metatarsal may be palpated. You will need to apply quite firm pressure with your index finger in order to palpate the surface.