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目的探讨Labbe’s静脉的形态及其与横窦的关系,指导临床手术。方法对20具经血管内灌注染料的成人尸头,行颞下-乙状窦后-枕下联合开颅术,在手术显微镜下观察两侧40例Labbe’s静脉的形态、到达横窦的位置、距离与夹角,横窦断面与Labbe’s静脉点的关系。结果Labbe’s静脉表现为单干型,双干型,烛台型,静脉窦或多干型。65%进入到横窦的上壁,25%进入到外侧壁,10%进入到内侧壁。与横窦的夹角,50%为锐角,30%为直角,20%为钝角。与横窦-乙状窦交汇点的平均距离为左侧2.6±1.3cm,右侧2.2±1.1cm。结论Labbe’s静脉可以表现为多种形态,了解不同形态对指导临床手术有重要意义;Labbe’s静脉进入到横窦外侧壁、与横窦呈直角、单干型或烛台型较易损伤。
Objective To investigate the morphology of Labbe’s vein and its relationship with transverse sinus to guide the clinical operation. Methods Twenty adult cadaver heads with intravascular perfusion dye were treated by subtemporal-retrosigmoid-occipital suboccipital combined craniotomy. The morphology of 40 Labbe’s veins on both sides were observed under a surgical microscope, Distance and angle, cross-section of sinus and Labbe’s venous points. Results Labbe’s venous performance as a single type, double-dry, candlestick, sinus or multi-dry type. 65% into the transverse wall of the sinuses, 25% into the lateral wall, 10% into the medial wall. Angle with the transverse sinus, 50% acute, 30% at right angles, 20% at obtuse angles. The mean distance from the junction of transverse sinus and sigmoid sinus was 2.6 ± 1.3 cm on the left and 2.2 ± 1.1 cm on the right. Conclusions Labbe’s veins can show multiple morphological changes. It is important to understand the different morphological characteristics of clinical practice. Labbe’s veins enter the lateral wall of transverse sinus and are perpendicular to transverse sinus.