Ogata K, Naito M
J Hand Surg Br. 1986 Feb;11(1):10-4. doi: 10.1016/0266-7681(86)90003-3.
Blood flow rate of the peripheral nerve was measured using the hydrogen washout technique and the effects of dissection, stretching and compression were studied on blood flow of the rabbit sciatic nerve. Regional surgical dissections revealed that a proximal portion of the sciatic nerve receives its blood supply from gluteal vessels whereas a distal portion receives from popliteal vessels. Blood flow direction in the proximal half of the sciatic nerve in the thigh was found to be distal whereas in the distal half to be proximal. The longitudinal pathway appeared to be capable of compensating for local diminution of blood flow. The average stretching of more than 15.7% caused complete arrest of blood flow in the stretched nerve. The average stretching force at this point was 74 grams. Complete standstill of intraneural circulation was observed under compression of 50 to 70 mm Hg, or 60 to 80% of mean arterial pressure. These values of critical stretching and compression on the intraneural blood flow corresponds well with those previously reported by Lundborg, 1973; Rydevik, 1981).
采用氢洗脱技术测量周围神经的血流速度,并研究解剖、拉伸和压迫对兔坐骨神经血流的影响。局部手术解剖显示,坐骨神经近端部分的血液供应来自臀血管,而远端部分的血液供应来自腘血管。发现大腿中坐骨神经近端一半的血流方向是向远端的,而远端一半的血流方向是向近端的。纵向路径似乎能够补偿局部血流减少。平均拉伸超过15.7%会导致被拉伸神经的血流完全停止。此时的平均拉伸力为74克。在50至70毫米汞柱(即平均动脉压的60%至80%)的压迫下,观察到神经内循环完全停止。这些神经内血流的临界拉伸和压迫值与Lundborg(1973年)、Rydevik(1981年)之前报道的数值非常吻合。