Introduction
upper limb muscle strength, fracture, clavicular fracture, Clavicular fracture, clavicle fracture, nausea, vomiting
ADVERSE REACTIONS, LARYNGEAL SPASM, COMPLICATIONS
Clavicular fracture is the most common injury in the shoulder, particularly in young men. It mainly occurs due to sports or traffic accidents, especially in the middle of the clavicle. Better functional results can be obtained by surgical treatment. General anaesthesia can be used during surgery, but there is a risk of nausea, vomiting, aspiration and laryngeal spasm during endotracheal intubation and extubation. Furthermore, the cost of anaesthesia increases the economic burden of patients. Regional anaesthesia can meet the requirements of satisfactory operation, avoid many complications in general and provide good postoperative analgesia [It is well known that the skin above the clavicle is innervated by the supraclavicular nerve. However, sensory innervation of the clavicle itself is controversial [Therefore, many scholars have attempted to use different regional nerve block techniques to meet the needs of clavicle fracture surgery. Clavipectoral fascial plane block (CPB) is a new regional nerve block proposed by Valdés in 2017 and can be used in anaesthesia and postoperative analgesia for clavicle fracture surgery. There is a very clear relationship between the pectoral fascia, which covers the anterior surface of the pectoralis major muscle, and the investing layer of the deep cervical fascia, which envelops the sternocleidomastoid muscle. Since Valdés proposed using CPB for clavicle fracture surgery in 2017, many scholars have reported relevant cases [Therefore, we designed this single-centre, double-blind, randomized controlled trial study. We performed clavicular surgery with ultrasound-guided SCPB combined with CPB or ISBP to explore the effects of two regional block techniques on anaesthesia, postoperative analgesia, upper limb muscle strength and adverse reactions in clavicular fracture surgery.