“…Tarsal tunnel syndrome (TTS) is a compressive neuropathy of the posterior tibial nerve or its branches within the tarsal tunnel, a fibro-osseous space located deep to the flexor retinaculum and postero-inferior to the medial malleolus [28,29]. Causes of nerve entrapment include soft tissue irregularity (i.e., hypertrophic flexor retinaculum), space-occupying (i.e., osteophyte, tumor), inflammatory (i.e., rheumatoid arthritis), trauma, biomechanical, obesity, or lower leg edema [30]. Symptoms include paresthesia or hyperesthesia in the areas of the distal tibial nerve exacerbated by standing, walking, or foot eversion and dorsiflexion, which can progress to irreversible nerve injury, weakness, or muscle atrophy [30][31][32].…”