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박현수,이우천,라종득,한영길,임장운 대한골절학회 1998 대한골절학회지 Vol.11 No.4
Recent advances in the understanding of the biomechanics of the ankle have given rise to the clinical uncertainty about the indications for the operative treament of isolated fractures of the lateral malleolus. If deltoid ligament injury is associated, it may be unstable and operation may be indicated. This study was done to determine if we are able to assess the stability of the isolated lateral malleolus fracture based on the fracture patterns seen on radiographs and clinical findings. 37 patients with malleolar fracture of the ankle were treated at Hanil General Hospital by open reduction and internal fixation from Dec. 1996 to Jan. l998. Lauge-Hansen classification was tried in all cases to determine if it could be applied. Stress test under anesthesia on 10 isolated lateral malleolar fracture patients with clinical findings of injury on the deltoid ligament area, whose medial clear space were normal or widened less than 2 mm on initial film. Exploration of the deltoid ligament was performed in 6 of above 10 patients There were 21 supination-external rotation type injuries, 2 supination-adduction injuries, 1 pronation-abduction injury and 13 fractures could not be clearly categorized into specific group. In 6 among 13 unclear cases, there were short oblique fracture line indicating pronation injury, but direction of thc fracture line could not be clearly determined. In 4 cases, direction of the fracture line indicated pronation injury, but the length of the fracture line was too long. In 3 cases, both the direction and length of the fracture line was indeterminate. The stress test on 10 isolated lateral malleolar fractures with clinical findings of deltoid injury revealed less than 2 mm widening in 7 cases, more than 2 mm widening in 3 cases. In 3 cases with less than 2 mm widening, tearing of anterior third of superficial deltoid was confirmed by exploration. In 3 cases with more than 3 mm widening, partial rupture of the deep deltoid was observed in 2 cases and anterior third of superficial deltoid was torn in 1 case. We suggest that we cannot clearly assess the stability of isolated lateral malleolar fracture either by fracture patterns or clinical findings, so stress test can be considered in determining the stability.
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족부 및 족관절 부위에서 비복 신경의 해부학 및 수술시의 의미
이우천,박현수,한영길,장병춘,임장운,라종득,Lee, Woo-Chun,Park, Hyun-Soo,Han, Young-Kil,Chang, Byeong-Chun,Rim, Jang-Woon,Rha, Jong-Deuk 대한족부족관절학회 1998 대한족부족관절학회지 Vol.2 No.2
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 distal course of the sural nerve and its surgical implications. 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 from the Achilles tendon. 2 to 4 lateral calcaneal branches arose. The first branch of the lateral calcaneal branches coursed along the lateral border of the Achilles tendon, and it arose at 8cm proximal to the plantar surface in 2 specimens, 12cm proximal to the plantar surface in 4 specimens, and at 12cm proximal to the plantar surface in one specimen. The main nerve trunk continued distally plantar to the peroneal tendons and divided into two terminal branches and crossed peroneus longus tendon at the level of the inferior border of the calcaneo-cuboid joint, at about 3cm(range, $2.5\sim3.0$)cm from the plantar surface. In conclusion, a longitudinal incision lateral to the Achilles tendon would cross the path of the sural nerve at about 10cm proximal to the plantar surface. When the first branch of them arise more than 10cm above the plantar surface, a logitudinal incision lateral to the Achilles tendon may be made without damage. The other lateral calcaneal branches will be cut when we make transverse incision paralled to the plantar surface. The terminal branch also may be in danger by the same transverse incision.
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