How is tarsal tunnel syndrome diagnosed?
Clinically, there is pain, dysesthesia, and/or numbness in the medial foot and base of the foot including the big toe and adjacent three toes.
The tendon sheath covering the nerve wraps over the medial malleolus down to the calcaneus. The nerve splits into three components, the calcaneal, medial, and lateral plantar nerves.
Depending on the location of compression along this tunnel, the heel may be painful along with medial and lateral plantar nerve distribution.