足根管内で分岐する微細な神経分枝の解剖学的検討

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  • An Anatomical Study of the Calcaneal Nerve in the Tarsal Tunnel

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<p>  Tarsal tunnel syndrome is a not uncommon clinical condition. We have operated on 71 patients (125 feet) with tarsal tunnel syndrome over a two year period (2005-2006). During surgery we frequently found fine branches originating from the medial, lateral, or both plantar nerve within the tarsal tunnel. According to its origin and course we divided these into five patterns from 0 to 4 ; no fine branch, one fine branch from the medial plantar nerve, one fine branch from the lateral plantar nerve, two branches from the lateral and medial plantar nerve, two branches from the medial and lateral plantar nerve and forming an ansa, respectively. As a result our patients could be categorized as 51 (41%) group 0, 49 (39%) group 1, 3 (2%) group 2, 15 (12%) group 3, and 7 (6%) group 4. Although these fine branches presented in more than half of our cases we found that very little attention has been paid to this ahatomical feature's existence. To recognize the existence of anatomical variations is important in avoiding accidental nerve injury during operation.</p>

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  • 脊髄外科

    脊髄外科 23 (2), 164-167, 2009

    日本脊髄外科学会

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