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检查组成股神经或坐骨神经的神经根紧张和刺激的试验众所周知。直腿抬高(SLR)试验和股神经牵拉试验分别包括L_5,S_1或S_2神经根和L_2至L_4神经根。本文介绍一种新试验,即膝屈曲试验,能提示腰骶神经根的紧张。患者俯卧、屈曲膝关节,如在同侧臀部并/(或)大腿后侧产生疼痛或加重疼痛时,则试验阳性。阳性试验预示下腰椎间盘突出。
It is well-known that tests for nerve root tension and irritation that make up the femoral or sciatic nerve. The straight leg raising (SLR) test and the femoral nerve pulling test included L_5, S_1 or S_2 nerve roots and L_2 to L_4 nerve roots, respectively. This article describes a new test, the knee flexion test, that prompts lumbosacral nerve root tension. The patient is prone and the knee is flexed, as is the test positive if pain or aggravation of pain occurs on the ipsilateral buttocks and / or posterior thighs. Positive tests predict lower lumbar disc herniation.