These boots weren't made for walking - tarsal tunnel syndrome

Description: Tarsal tunnel syndrome is an uncommon entrapment neuropathy caused by several conditions, of which ganglion cysts are one. Most ganglion-associated neuropathy involves the peroneal nerve; cysts involving the posterior tibial nerve account for only 4% of cases. Despite debate about the actual causes of these cysts, most believe that they usually arise from joint capsules or tendon sheaths. Local trauma or stresses appear to play an important role. In this case, we hypothesize that repeated local microtrauma from the wearing of boots caused a ganglion cyst to form from the sheath of the flexor hallucis longus tendon.
These boots weren't made for walking: tarsal tunnel syndrome Hu Liang Low and George Stephenson CMAJ. 2007 May 8; 176(10): 1415–1416. Full text