Erbil K M, Onderoğlu S, Başar R
Department of Anatomy, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
Okajimas Folia Anat Jpn. 1999 May;76(1):55-9. doi: 10.2535/ofaj1936.76.1_55.
This article describes a complex bilateral variation in the formation of lumbar plexus in a 32 year old male cadaver. On the left side the plexus was postfixed and located posterior to the psoas major muscle. The femoral nerve was formed by the union of anterior rami of the second, third, fourth and fifth lumbar spinal nerves. On the right side, the lumbar plexus was prefixed. The lateral cutaneous nerve of the thigh was formed by the union of the anterior rami of the first and second lumbar spinal nerves. The femoral nerve formed by branches from the first, second, third and fifth lumbar spinal nerves while the obturator nerve was formed by the union of the first, second and third lumbar spinal nerves. The right lumbar plexus was located in the substance of the psoas major muscle. In the present case, the formation of branches of the lumbar plexus were different from the previous data present in the literature.
本文描述了一名32岁男性尸体中腰丛形成的复杂双侧变异情况。左侧腰丛为低位固定，位于腰大肌后方。股神经由第二、三、四和五腰神经前支汇合而成。右侧腰丛为高位固定。股外侧皮神经由第一和第二腰神经前支汇合而成。股神经由第一、二、三及五腰神经的分支形成，而闭孔神经由第一、二和三腰神经前支汇合而成。右侧腰丛位于腰大肌实质内。在本病例中，腰丛分支的形成与文献中先前的数据不同。
