Queen Mother Hospital for Animals, Royal Veterinary College, Hertfordshire, UK.
The University Veterinary Teaching Hospital, The School of Veterinary Science, The University of Sydney, Camperdown, NSW, Australia.
J Feline Med Surg. 2020 Apr;22(4):339-343. doi: 10.1177/1098612X19845719. Epub 2019 May 9.
The aim of this study was to describe the technique for a novel lateral approach to femoral nerve block in cat cadavers.
Five feline cadavers were used in our prospective cadaveric experimental study. Ultrasonography was used to identify the anatomy injection site. Both pelvic limbs were injected with a volume (0.1 ml/kg) of methylene blue in each cat. The cadavers were placed in lateral recumbency, with the limb to be blocked positioned uppermost. The transducer was held perpendicular to the most proximal area of the pelvic limb, ventral to the greater trochanter and slightly cranial to the femur. Methylene blue was injected after the localisation of the femoral nerve. Immediately after the injection, the cat was turned and the technique was repeated on the contralateral side. After performing the 'block' in both limbs, the area was dissected bilaterally and the success was evaluated. A positive femoral nerve staining was considered for a coverage of ⩾1 cm.
A total of 10 ultrasound-guided femoral nerve injections were performed. Ninety percent (n = 9/10) of the nerves were successfully dyed.
The novel ultrasound-guided lateral approach may be suitable and reproducible for a successful femoral nerve blockade in cats. Further investigations about the clinical usefulness and safety of this femoral nerve block in live cats are required.
本研究旨在描述一种在猫尸体中进行股神经阻滞的新的外侧入路技术。
我们在这项前瞻性尸体实验研究中使用了 5 只猫尸体。超声用于识别解剖注射部位。每只猫的每条后肢均注射 0.1ml/kg 的亚甲蓝。尸体侧卧，待阻滞的肢体置于最上方。将换能器垂直于后肢最靠近骨盆的区域，在大转子的腹侧，股骨的稍上方放置。在定位股神经后注射亚甲蓝。注射后立即翻转猫，对另一侧重复该技术。在两条腿均进行“阻滞”后，双侧进行解剖并评估成功情况。阳性股神经染色被认为是覆盖 ⩾1cm。
总共进行了 10 次超声引导下的股神经注射。90%（n=9/10）的神经成功染色。
新型超声引导下的外侧入路可能适用于猫的股神经阻滞，并具有可重复性。需要进一步研究这种股神经阻滞在活猫中的临床实用性和安全性。
