Rucci F S, Pippa P, Barbagli R, Doni L
Servizio di Anestesia e Rianimazione, Centro Traumatologico Ortopedico, Ospedali Riuniti di Careggi, Florence, Italy.
Eur J Anaesthesiol. 1993 Jul;10(4):303-7.
This study compares the areas of analgesia obtained with the lateral and posterior approaches to the interscalene space after injection of equal volumes of anaesthetic solution (40 ml of a mixture of 0.5% bupivacaine with adrenaline 1:200,000 and 2% lignocaine in equal parts). There was a significant difference in the distribution of the areas of analgesia between the two approaches. With the posterior approach, the region supplied by the radial, medial and ulnar nerves and the post-axial border of the upper limb were more frequently involved, whilst with the lateral approach the area of analgesia was usually confined to the regions supplied by the most caudal roots of the cervical plexus and the upper trunk of the brachial plexus (pre-axial border of the upper limb). On these grounds it appears that two different types of interscalene block are possible.
本研究比较了在注入等量麻醉溶液（40毫升由0.5%布比卡因与1:200,000肾上腺素以及2%利多卡因等份混合而成的溶液）后，采用外侧入路和后侧入路至斜角肌间隙所获得的镇痛区域。两种入路的镇痛区域分布存在显著差异。采用后侧入路时，桡神经、尺神经和正中神经所支配的区域以及上肢的轴后缘更常被累及，而采用外侧入路时，镇痛区域通常局限于颈丛最尾侧神经根和臂丛上干所支配的区域（上肢的轴前缘）。基于这些原因，似乎可能存在两种不同类型的斜角肌阻滞。
