The tarsal and calcaneal tunnel syndromes.

This paper concerns 22 cases of compression of the posterior tibial nerve and its branches in the tarsal and calcaneal tunnels, all of which were treated by surgical decompression. The evaluation of both the operative findings and the results after a follow-up period ranging from 4 months to 2 years confirms the validity of neurolysis and emphasizes the role of the abductor hallucis muscle in the compression of the terminal branches of the posterior tibial nerve in the calcaneal tunnel.