Smits Rachel J H, Tan Edward C T H, van den Bersselaar Luuk R, de Bruijn Anne, Hendriksen Eva, Vissers Kris C P, Olde Dubbelink Kim T E, van der Wal Selina E I
Department of Anesthesiology, Pain and Palliative Medicine, Radboudumc, Nijmegen, The Netherlands.
Department of Surgery, Radboudumc, Nijmegen, The Netherlands.
Pain Pract. 2025 Feb;25(2):e70002. doi: 10.1111/papr.70002.
In this study, the spread of methylene blue was compared between an ultrasound-guided Pericapsular Nerve Group (PENG) block and a double injection technique, where the approach towards the inferomedial acetabulum was added to the latter.
The two techniques were performed in 11 fresh frozen cadavers. The spread was measured after anatomical dissection in which the supplying femoral and obturator nerves were identified.
Our study demonstrates adequate staining of the iliac bone with comparable distal and medial spread in both techniques, indicating that the PENG block with a single injection is adequate in blocking the hip capsule with 10 mL local anesthetics. Staining of the femoral nerve occurred in 2/6 specimens after the PENG block, and staining of the obturator nerve in 1 specimen in each group.
在本研究中，比较了超声引导下关节囊周围神经群（PENG）阻滞与双注射技术之间亚甲蓝的扩散情况，后者在向髋臼内下象限进针时增加了注射。
在11具新鲜冷冻尸体上实施这两种技术。在解剖过程中识别出供应的股神经和闭孔神经后测量扩散情况。
我们的研究表明，两种技术对髂骨的染色均充分，在远侧和内侧的扩散相当，这表明单次注射的PENG阻滞使用10毫升局部麻醉剂足以阻滞髋关节囊。PENG阻滞后，2/6的标本中股神经出现染色，每组各有1个标本中闭孔神经出现染色。
