Garcia-Pereira Fernando L, Boruta Daniel, Tenenbaum Sharon, Paranjape Vaidehi
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.
Palm Beach Veterinary Specialists, West Palm Beach, FL, USA.
Vet Anaesth Analg. 2018 Sep;45(5):703-706. doi: 10.1016/j.vaa.2018.03.005. Epub 2018 Apr 13.
To investigate the utility of identifying the superficial circumflex iliac artery (SCIA) via ultrasound as an anatomical landmark for ultrasound-guided femoral nerve block.
Observational study.
A group of six canine cadavers weighing >20 kg.
Pelvic limbs from six canine cadavers were examined to study the relationship between the SCIA and the femoral nerve. Ultrasonographic imaging of the SCIA in each limb was obtained with the transducer placed transversely in the medial aspect of the pelvic limb at the inguinal area. Subsequently, a needle was inserted in close proximity to the femoral nerve using an in-plane technique based on the anatomical relationship between the SCIA and femoral nerve. A total of 0.1 mL of colored latex was then injected at the location where the femoral nerve was expected to be in relationship to the SCIA. Gross dissection of the inguinal region in each pelvic limb was performed after injection. Positive nerve location was defined when the colored latex was in contact with the femoral nerve.
A total of eleven pelvic limbs were injected because the SCIA could not be successfully visualized in one limb. Upon dissection, colored latex was found to be in direct contact with the femoral nerve in all 11 injected limbs.
We concluded that the ultrasonographic visualization of the SCIA assisted in the accurate deposition of dye in proximity to the femoral nerve of canine cadavers. Further investigation will determine the efficacy of this technique for performing femoral nerve blocks.
研究通过超声识别旋髂浅动脉（SCIA）作为超声引导股神经阻滞解剖标志的实用性。
观察性研究。
一组6只体重>20 kg的犬类尸体。
检查6只犬类尸体的骨盆肢体，以研究旋髂浅动脉与股神经之间的关系。将换能器横向置于骨盆肢体腹股沟区内侧，对每个肢体的旋髂浅动脉进行超声成像。随后，根据旋髂浅动脉与股神经之间的解剖关系，采用平面内技术在股神经附近插入一根针。然后在预期股神经与旋髂浅动脉相关的位置注射总共0.1 mL彩色乳胶。注射后对每个骨盆肢体的腹股沟区域进行大体解剖。当彩色乳胶与股神经接触时，定义为神经定位阳性。
总共对11个骨盆肢体进行了注射，因为有一个肢体未能成功显示旋髂浅动脉。解剖时发现，在所有11个注射的肢体中，彩色乳胶都与股神经直接接触。
我们得出结论，旋髂浅动脉的超声可视化有助于在犬类尸体股神经附近准确注射染料。进一步的研究将确定该技术用于进行股神经阻滞的有效性。
