Schlehr F J, Limbird T A, Swiontkowski M F, Keller T S
J Orthop Res. 1987;5(1):150-3. doi: 10.1002/jor.1100050120.
The purpose of this study was to quantitate the blood flow of the anterior cruciate ligament in vivo. Functional flow was evaluated using laser Doppler flowmetry (LDF), for which the output signal, blood cell flux (BCF), is expressed in terms of volts. Ten patients undergoing routine arthroscopic surgery with clinically intact anterior cruciate ligaments were selected at random for participation in the study. Under arthroscopic visualization, a 2.2-mm probe was placed through a trocar sleeve into the anterior cruciate ligament after the arthroscopic procedure. Pulsatile flow within the ligament was observed in all patients. The mean maximum BCF value ranged from 101 to 274 mV; SD range was +/- 3-9 mV. The mean minimum BCF ranged from 75 to 197 mV; SD range was +/- 0 to 9 mV. Laser Doppler flowmetry offers significant promise as a method for measurement of in vivo anterior cruciate and cruciate substitution blood flow.
本研究的目的是对体内前交叉韧带的血流进行定量分析。使用激光多普勒血流仪（LDF）评估功能性血流，其输出信号血细胞通量（BCF）以伏特表示。随机选择10例前交叉韧带临床完整且正在接受常规关节镜手术的患者参与本研究。在关节镜直视下，关节镜手术完成后，将一个2.2毫米的探头通过套管针置入前交叉韧带。所有患者均观察到韧带内的搏动性血流。BCF的平均最大值范围为101至274毫伏；标准差范围为±3至9毫伏。BCF的平均最小值范围为75至197毫伏；标准差范围为±0至9毫伏。激光多普勒血流仪作为一种测量体内前交叉韧带和交叉韧带替代物血流的方法具有巨大潜力。
