您的肩神经阻滞 资料
几乎所有肩部手术都会使用神经阻滞以及轻度全身麻醉。该阻滞术是我们用于确保术后舒适度的最有效单一手段，因此了解相关计划至关重要，以免任何环节让您感到意外。
什么是神经阻滞
支配您手臂的所有神经都经过锁骨上方一个紧密的神经束。麻醉师使用超声设备精确查看这些神经的位置，并在该神经束周围注射少量局部麻醉药。这被称为锁骨上神经阻滞。它会阻断来自整个手臂的疼痛信号数小时，时间足以覆盖您的手术以及恢复初期（此时疼痛通常最为剧烈）。
手术期间您不会处于清醒状态。通常会在神经阻滞的基础上辅以轻度全身麻醉，使您在整个手术过程中保持睡眠。神经阻滞负责镇痛；全身麻醉则确保您舒适地处于睡眠状态。
为何在您的肩部手术中使用此技术
良好的神经阻滞作用远不止于针剂带来的局部麻木：
- 它比单纯服用止痛药或仅使用全身麻醉更能有效控制疼痛。 在一项又一项研究中，接受臂丛神经阻滞的患者在肩部手术后的最初几小时内疼痛评分更低，且所需强效止痛药剂量显著减少。一项汇总了36项独立试验及3,000多名接受关节镜（微创）肩部手术患者的综述发现，此类臂丛神经阻滞既能降低疼痛评分，又能减少术后所需的强效阿片类止痛药用量。
- 它使我们能够使用较轻剂量的全身麻醉。 由于神经阻滞在疼痛控制方面承担了主要作用，您通常苏醒后头脑更清醒，嗜睡感和恶心感更少。
- 它减少了您对阿片类药物（强效止痛药）的需求。 这意味着副作用更少（便秘、嗜睡和恶心减少），早期恢复过程更平稳。
- 它能让您更快感到舒适、恢复活动能力并出院回家。
感觉如何
注射后约20至30分钟内，手臂会变得沉重、温热、麻木且无力。您将无法抬起手臂，也几乎感觉不到手臂的存在，并且可能无法活动手指。这正是预期会发生的情况。麻木感通常持续8至18小时，偶尔可持续至一天。这是完全暂时的：完全的感觉和运动功能总会恢复。
为什么您需要佩戴悬吊带
在阻滞麻醉起效期间，您的手臂会失去感觉且无法自主发力。悬吊带的作用是托住并保护手臂，防止其晃动、下垂或受到撞击，同时避免您因无法感知手臂位置而向其倾斜或翻滚。请保持手臂在悬吊带中处于支撑状态，注意保暖，并避免让其下垂。请将其视为一个尚无法自我照顾的肢体，需加以妥善看护。
您可能注意到的情况（这些均属正常）
由于我们阻滞的神经与颈部其他几条神经位置邻近，您可能会注意到该侧出现一些无害的暂时性影响：
- 眼睑下垂或沉重感，有时伴有轻微的眼结膜充血
- 声音略显嘶哑或鼻孔有堵塞感
- 感觉无法完全深呼吸（阻滞可暂时使该侧肺下肌肉的神经安静下来）
我们采用的锁骨上入路部分原因在于，与放置在颈部更高位置的阻滞相比，它引起这些副作用的频率往往较低。随着阻滞消退，这些症状均会自行消失，无需治疗。
当阻滞效果消退时——尽早开始服用止痛药
这是最关键、必须正确执行的部分。
神经阻滞在最初8–18小时内效果极佳，随后感觉会迅速恢复，通常发生在夜间。随着感觉的恢复，疼痛可能会突然袭来。这被称为反跳痛，由于患者此前感觉非常舒适，往往对此毫无防备。
诀窍很简单：不要等到疼痛出现才服药。 在手臂完全恢复感觉之前，就服用您常规处方的止痛药：我们会给您一个大致的时间参考，并在最初几天内规律服药，即使手臂仍处于麻木状态。提前控制疼痛的患者，第一晚会过得平稳得多。而等到疼痛发作才服药的患者，则需经历数小时的痛苦以追赶药效。
如果出现以下情况，请致电我们或寻求帮助：
- 您的呼吸确实感到困难或正在恶化（轻微的气管未充满感属预期现象；真正的呼吸困难则不然：需接受评估）
- 您的手臂在约24–30小时后仍完全麻木且松软无力
- 您的手指变为白色、冰冷或蓝色，或出现胸痛
对于阻滞消退时出现的普通反跳痛，请服用您的药片并提前应对：它会在接下来的一两天内缓解。
Evidence & references
This is the clinical evidence summary written for health professionals. It is technical, and it lists the research this page was built from. You do not need to read it to understand your treatment or to make a decision about it.
Key Evidence
Brachial plexus blocks reduce pain and opioid use after shoulder surgery. Regional anaesthesia is the cornerstone of modern shoulder-surgery analgesia. A current review of regional techniques for shoulder surgery describes the supraclavicular brachial plexus block as an effective approach that provides dense analgesia of the arm while producing fewer of the unwanted neck-related effects (hoarseness, Horner's syndrome, diaphragm involvement) seen with higher interscalene blocks [1]. Across the broader literature, peripheral nerve blocks consistently lower early post-operative pain scores and reduce opioid consumption compared with general anaesthesia or local infiltration alone [2,3,5].
The benefit is largest in the first hours and translates into better recovery quality. A systematic review and meta-analysis in Anesthesiology found brachial plexus and suprascapular blocks deliver clinically meaningful analgesia for shoulder surgery, supporting their routine use [2]. A focused review of regional blocks for arthroscopic rotator cuff repair reached the same conclusion: blocks improve early pain control and reduce rescue-opioid requirements [3]. Longer-acting block formulations further extend the pain-free window after shoulder replacement [4].
Rebound pain is real and is best managed by pre-emptive oral analgesia. Because a single-shot block wears off after roughly 8–18 hours, patients can experience a sharp surge of pain as sensation returns — usually overnight. A two-centre randomised controlled trial and the wider rebound-pain literature emphasise that patient education and starting regular analgesia before the block resolves are central to a smooth recovery [6]. This is why patients are advised to begin their prescribed pain tablets early rather than waiting for pain to arrive.
References
- Zhang LL, Sinha SK, Murthi AM. Current Strategies in Regional Anesthesia for Shoulder Surgery. J Am Acad Orthop Surg. 2025;33(14):761-9. doi:10.5435/JAAOS-D-24-00738
- Hussain N, Goldar G, Ragina N, et al. Suprascapular and Interscalene Nerve Block for Shoulder Surgery: A Systematic Review and Meta-analysis. Anesthesiology. 2017;127(6):998-1013. doi:10.1097/ALN.0000000000001894
- Kim TY, Hwang JT. Regional nerve blocks for relieving postoperative pain in arthroscopic rotator cuff repair. Clin Shoulder Elb. 2022;25(4):339-46. doi:10.5397/cise.2022.01263
- Finkel KJ, Walker A, Maffeo-Mitchell CL, et al. Liposomal bupivacaine provides superior pain control compared to bupivacaine with adjuvants in interscalene block for total shoulder replacement: a prospective double-blinded, randomized controlled trial. J Shoulder Elbow Surg. 2024;33(7):1512-20. doi:10.1016/j.jse.2023.12.014
- Liu Z, Li YB, Wang JH, et al. Efficacy and adverse effects of peripheral nerve blocks and local infiltration anesthesia after arthroscopic shoulder surgery: A Bayesian network meta-analysis. Front Med (Lausanne). 2022;9:1032253. doi:10.3389/fmed.2022.1032253
- Uppal V, Barry G, Ke JXC, et al. Reducing rebound pain severity after arthroscopic shoulder surgery under general anesthesia and interscalene block: a two-centre randomized controlled trial of pre-emptive opioid treatment compared with placebo. Can J Anaesth. 2024;71(6):773-83. doi:10.1007/s12630-023-02594-0
