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KMID : 0896719980020020088
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Journal of the Korean Society of Foot Surgery
1998 Volume.2 No. 2 p.88 ~ p.92
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Anatomy of the Sural Nerve in the Foot and Ankle and its Surgical Implications
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Lee Woo-Chun
Rha Jong-Deuk
Park Hyun-Soo
Chang Byeong-Chun
Han Young-Kil
Rim Jang-Woon
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Abstract
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The course of the sural nerve in the calf has been well documented, but there is a general lack of information concerning the distal course of the nerve. The purpose of this study was to describe the dist.al course of the sural nerve and its surgical implicat.ions. Seven fresh amputated specimens were dissected to show the anatomy of the sural nerve in the foot and ankle. At the level of about, 10cm proximal to the plantar surface, the sural nerve coursed anteriorly and inferiorly away fr om the Achilles tendon. 2 to 4 lateral calcaneal branches arose. The first, branch of t.he lat.eral calcaneal hranches coursed along the lateral border of the Achilles tendon, and it arose at Hcm proximal to the plantar surface in 2 specimens, 10cm proximal to the plant.ar surface in 4 specimens, and at. 12cm proximal to t,he plantar surface in ane specimen. The main nerve trunk cont.inued distally plant.ar to the peraneal tendons and divided into two terminal branches and crossed peroneus longus tendon at the level of the inferior border of the calcanea-cuhoid joint, at about 3cm(range, 2.5-3.0)cm from t.he plant.ar surface. In conclusion, a longitudinal incision lateral to the Achilles tendon would cross t.he pat.h af the sural nerve at about 10cm proximal to the plantar surface. When the fir st branch of them arise more than 10cm above the plantar surface, a logitudinal incision lateral to the Achilles tendon may be m;ade without damage. The other lateral calcaneal branches will be cut when we make transverse incision pnralled to the plantar surface. The terminal branch also may be in danger hy the same transverse incision.
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KEYWORD
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Sural nerve, Foot and ankle, Anatomy
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