METHODS: Our anatomical study was carried out on 15 ankles available from a body donation program. Ultrasound identification of the sural nerve was obtained first with injection of dye. A needle was positioned at the level of the calcaneal insertion of the CFL. After dissection, in all the ankles, the dye was in contact with the sural nerve and the needle was located in the calcaneal insertion area of the CFL. The mean distance between the sural nerve and the needle was 4.8 mm (range 3-7 mm).
CONCLUSIONS: A pre- or intra-operative ultrasound technique is a simple and reliable means for obtaining anatomical landmarks when drilling the calcaneal tunnel for ligament reconstruction of the lateral plane of the ankle. This tunnel should preferably be drilled obliquely from the heel towards the subtalar joint (1 h-3 h direction on an ultrasound cross section), which preserves a maximum distance from the sural nerve for safety purposes, while allowing an accurate anatomical positioning of the osseous tunnel.
方法:我们的解剖学研究是在15个脚踝上进行的,这些脚踝是通过一项身体捐献计划获得的。首先通过注射染料获得腓肠神经的超声鉴定。将针定位在CFL的跟骨插入的水平处。解剖后,在所有的脚踝,染料与腓肠神经接触,针头位于CFL的跟骨插入区.腓肠神经和针头之间的平均距离为4.8mm(范围3-7mm)。
结论:术前或术中超声技术是一种简单可靠的方法,用于在跟骨隧道钻孔以重建踝关节侧平面的韧带时获得解剖标志。该隧道最好从脚跟向距骨下关节倾斜钻孔(超声横截面上的1h-3h方向)。为了安全起见,它保留了与腓肠神经的最大距离,同时允许骨隧道的准确解剖定位。