Abstract:Tarsal tunnel syndrome, or posterior tibial neuralgia, is diagnosed when the tibial nerve is compressed as it travels within the tarsal tunnel. Two variant leg muscles, flexor digitorum accessorius longus (FDAL) and peroneocalcaneus internus (PCI), have gained recent attention in the clinical literature for their involvement in this compressive entrapment neuropathy. Both of these muscles course within the tarsal tunnel and, when present, may act as space‐occupying lesions, leading to numbness, paresthesia, an… Show more
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