Kosteljanetz M, Bang F, Schmidt-Olsen S
Department of Neurosurgery, Aalborg Sygehus, Denmark.
Spine (Phila Pa 1976). 1988 Apr;13(4):393-5. doi: 10.1097/00007632-198804000-00003.
Limitation of straight-leg raising (SLR) (Lasègue's sign) is considered an important test in the diagnosis of herniated lumbar disc disease. In a prospective study of 55 patients suffering from unilateral sciatica this sign was evaluated. Two aspects were investigated: 1) the interobserver variation, and 2) the correlation between the result of the test and the surgical finding. There was considerable interobserver variation among three observers concerning the measured angle at which pain was elicited. However, in 2/3 to 3/4 of the cases the variation amounted to 10 degrees or less. There was also some discordance in the classification of the type of pain that was elicited. Fifty-two patients underwent surgery; 45 had a prolapsed disc. SLR was "positive" in 49 cases, 43 of whom harbored a prolapsed disc. Crossed SLR was noted in 20, 19 of whom had a prolapsed disc at surgery. Absence of SLR limitation does not preclude the presence of a herniated lumbar disc.
直腿抬高试验（拉塞格征）受限被认为是诊断腰椎间盘突出症的一项重要检查。在一项针对55例单侧坐骨神经痛患者的前瞻性研究中，对该体征进行了评估。研究了两个方面：1）观察者间的差异，以及2）检查结果与手术发现之间的相关性。三位观察者在引发疼痛的测量角度方面存在相当大的观察者间差异。然而，在2/3至3/4的病例中，差异为10度或更小。在引发疼痛类型的分类方面也存在一些不一致。52例患者接受了手术；45例有椎间盘突出。直腿抬高试验在49例中呈“阳性”，其中43例有椎间盘突出。20例出现交叉直腿抬高试验阳性，其中19例在手术时有椎间盘突出。直腿抬高试验不受限并不能排除腰椎间盘突出的存在。
