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Flexion

骨科

关键词骨科 临床研究术语 关节运动

词汇介绍

拓展阅读

解析

Flexion 英 /'flekʃ(ə)n/      

释义   n. 弯曲,弯曲状态;弯曲部分

例句   To achieve this, you have to have maximum ankle flexibility for good catch, and good knee flexion to maintain the range of motions. 为了达到这一点,你必须有极佳的脚踝灵活性去实现好的抓水,极佳的膝盖弯曲度去保持动作的幅度。


概述

关节的运动形式通常包括屈曲、伸直、内收、外展、内旋、外旋。 各部位活动度(1)颈部活动度中立位:面向前,眼平视,下颌内收。颈部活动度为:前屈35°-45°;后伸35°-45°;左右侧屈各45°:左右旋转各60°-80°。(2)腰部活动度   腰椎中立位不易确定。    前屈:测量数值不易准确,患者直立,向前弯腰,正常时中指尖可达足面,腰椎呈弧形,一般称之为90°。后伸:30°。侧屈:左右各30°。侧旋:固定骨盆后脊柱左右旋转的程度,应依据旋转后两肩连线

In Vivo Morphological Changes of the Femoropopliteal Arteries due to Knee Flexion After Endovascular Treatment of Popliteal Aneurysm复制标题

腘动脉瘤血管内治疗后膝关节屈曲的股动脉形态学变化

发表时间:2019-08-03

影响因子:3.0

作者: Giovanni Spinella

期刊:J. Endovasc. Ther.

Popliteal artery aneurysms (PAAs) are the most frequently encountered peripheral aneurysms. In elective cases, open or endovascular treatment is often used when the aneurysm reaches 2 cm in diameter. Results of endovascular treatment were initially disappointing, likely due to the materials used in the first generation of devices, and while it continues to demonstrate lower patency rates compared with open repair using prosthetic materials or autologous vein, endovascular PAA repair is now indicated in selected cases. In particular, it is often used in the absence of arterial tortuosity and off-target area dilatation and when treating patients with at least 2 runoff vessels and proximal and distal stent-graft landing zones of at least 15 mm. However, clinical outcomes even in these selected patients are far from perfect, and treatment failures are often attributed to the severe repetitive deformations experienced by the femoropopliteal (FP) segment during limb flexion. These deformations can lead to kinking and compression of the endovascular device, contributing to thrombosis, stent fracture, and ultimately treatment failure. These considerations call for a quantification of the in vivo behavior of the FP arteries during limb flexion after endovascular aneurysm repair.

译文

Pop动脉瘤(PAAs)是最常见的外周动脉瘤。在选择性病例中,当动脉瘤直径达到2厘米时,通常使用开放式或血管内治疗。血管内治疗的结果最初令人失望,可能是由于第一代装置中使用的材料,并且与使用修复材料或自体静脉的开放修复相比,它继续表现出较低的通畅率,现在在选定病例中指示血管内PAA修复。特别地,它通常在没有动脉弯曲度和脱靶区域扩张的情况下使用,并且当用至少2个径流血管和至少15mm的近端和远端支架移植物着陆区治疗患者时使用。然而,即使在这些选定的患者中临床结果也远非完美,并且治疗失败通常归因于肢体屈曲期间股op动脉(FP)段经历的严重重复变形。这些变形可导致血管内装置的扭结和压缩,导致血栓形成,支架断裂,并最终导致治疗失败。这些考虑要求量化血管内动脉瘤修复后肢体屈曲期间FP动脉的体内行为。