髂腰韧带的骶髂部。
The sacroiliac part of the iliolumbar ligament.
作者信息
Pool-Goudzwaard A L, Kleinrensink G J, Snijders C J, Entius C, Stoeckart R
机构信息
Department of Anatomy, Erasmus University Rotterdam, The Netherlands.
出版信息
J Anat. 2001 Oct;199(Pt 4):457-63. doi: 10.1046/j.1469-7580.2001.19940457.x.
The iliolumbar ligament has been described as the most important ligament for restraining movement at the lumbosacral junction. In addition, it may play an important role in restraining movement in the sacroiliac joints. To help understand its presumed restraining effect, the anatomy of the ligament and its orientation with respect to the sacroiliac joints were studied in 17 cadavers. Specific dissection showed the existence of several distinct parts of the iliolumbar ligament, among which is a sacroiliac part. This sacroiliac part originates on the sacrum and blends with the interosseous sacroiliac ligaments. Together with the ventral part of the iliolumbar ligament it inserts on the medial part of the iliac crest, separate from the interosseous sacroiliac ligaments. Its existence is verified by magnetic resonance imaging and by cryosectioning of the pelvis in the coronal and transverse plane. Fibre direction, length, width, thickness and orientation of the sacroiliac part of the iliolumbar ligament are described. It is mainly oriented in the coronal plane, perpendicular to the sacroiliac joint. The existence of this sacroiliac part of the iliolumbar ligament supports the assumption that the iliolumbar ligament has a direct restraining effect on movement in the sacroiliac joints.
髂腰韧带被认为是限制腰骶关节活动最重要的韧带。此外，它可能在限制骶髂关节活动方面发挥重要作用。为了有助于理解其假定的限制作用，对17具尸体的该韧带解剖结构及其相对于骶髂关节的方向进行了研究。具体解剖显示髂腰韧带存在几个不同的部分，其中包括一个骶髂部。该骶髂部起于骶骨，与骶髂骨间韧带融合。它与髂腰韧带的腹侧部分一起附着于髂嵴内侧，与骶髂骨间韧带分开。通过磁共振成像以及骨盆冠状面和横断面的冷冻切片证实了它的存在。描述了髂腰韧带骶髂部的纤维方向、长度、宽度、厚度和方向。它主要位于冠状面，垂直于骶髂关节。髂腰韧带骶髂部的存在支持了髂腰韧带对骶髂关节活动有直接限制作用这一假设。
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