Pećina M
Acta Anat (Basel). 1979;105(2):181-7.
The author investigated in 130 anatomical specimens the topographical relations of the sciatic nerve and the musculus piriformis in order to explain the clinical syndrome of the m. piriformis. The author found that in 6.15% of cases the nervus peroneus communis passes between the tendinous parts of the m. piriformis, and he considers this variation of practical significance for the development of the 'piriformis syndrome'. In unward rotation of the thigh, the m. piriformis is extended and the tendons of the divided muscle are tightly pressed together thus pinching the nerve between them. Pinching of the nerve causes the characteristic sciatic pain. In such a case, the patient can be relieved by cutting one of the tendons.
作者对130个解剖标本进行了研究，以探究坐骨神经与梨状肌的局部关系，从而解释梨状肌的临床综合征。作者发现，在6.15%的病例中，腓总神经走行于梨状肌腱性部分之间，他认为这种变异对于“梨状肌综合征”的发生具有实际意义。在大腿内旋时，梨状肌伸展，其分裂肌的肌腱紧密挤压在一起，从而夹住其间的神经。神经受压会引发典型的坐骨神经痛。在这种情况下，切断其中一条肌腱可使患者症状缓解。
