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KMID : 0361620140490050340
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Journal of the Korean Orthopaedic Association
2014 Volume.49 No. 5 p.340 ~ p.345
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Update on Management of Compressive Neuropathy: Tarsal Tunnel Syndrome
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Kim Hak-Jun
Jang Gyu-Sun
Lee Ji-Ho
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Abstract
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The tarsal tunnel is located beneath the flexor retinaculum, which connects the medial malleolus and calacaneus. The tarsal tunnel contains the posterior tibialis tendon, flexor digitorum longus tendon, posterior tibial artery and vein, posterior tibial nerve, and flexor halluces longus tendon. Tarsal tunnel syndrome is a compressive neuropathy of posterior tibial nerve and its branches under the flexor retinaculum. The etiologies of tarsal tunnel syndrome are space-occupying lesion, hypertrophied flexor retinaculum, osteophytes, tarsal coalition, varicose vein, and trauma. The symptoms are foot pain and hypoesthesia or paresthesia at dermatome according to involving nerve branches. Clinical diagnosis can be obtained from a detailed history and physical examination such as compressive test at the tarsal tunnel area. Ultrasonography and magnetic resonance imaging can reveal the space-occupying lesion, such as ganglion, lipoma, and neuroma. The initial treatments of tarsal tunnel syndrome are conservative management, such as physical therapy, night splint, and steroid injection. Surgical decompression is indicated after failure of conservative managements. Variable results of surgical treatment have been reported. Favorable result after decompression could be obtained from young patients, early onset symptoms, and space-occupying lesion.
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KEYWORD
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posterior tibial nerve, entrapment neuropathy, tarsal tunnel, treatment
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