Ultrasound-guided combined interscalene and superficial cervical plexus blocks for anesthesia management during clavicle fracture surgery
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Interscalene brachial plexus block
Superficial cervical plexus block
Visual analog score
To the Editor,
Fractures of the clavicle constitute 2.6–4% of all fractures in adult patients. The most frequent injury mechanism is a direct trauma on the shoulder. These fractures are mainly treated surgically (Kihlstrom et al. 2017). The cervical and brachial plexus innervate the clavicular region (Tran et al. 2013). Thus, interscalene brachial plexus block (IBPB) and superficial cervical plexus block (SCPB) may be used for pain management following clavicular surgery. Herein, we aimed to report our ultrasound (US)-guided IBPB and SCPB combination experiences for anesthetic management during clavicular surgery.
The demographic and operational characteristics of the patients and adverse events
44 ± 14
77 ± 11
170 ± 8
ASA class (I/II/III)
Duration of surgery (min)
80 ± 28
Duration of anesthesia (min)
116 ± 27
Fracture localization (lateral/midshaft/medial)
Recovery of motor block time (min)
213 ± 60
The need for analgesia for the first time (min) (VAS > 4)
259 ± 99
Continue with general anesthesia
The sensorineural innervation of the clavicle is a complex issue. The osseous part is mainly innervated by long thoracic, subclavian, supraclavicular, and suprascapular nerves that originated from C3–5 roots. Since these nerves are originated from the brachial plexus, they may be blocked between the scalene muscles. The skin is innervated from SCP which originated from anterior ramii of C1–4 nerve root. The SCP leaves from the lateral part of the upper 1/3 sternocleidomastoid muscle (Tran et al. 2013; Shanthanna 2014). IBPB and SCPB may be used for pain management following clavicular surgery. In the literature, IBPB and SCPB were reported for anesthesia management in a few number of cases and retrospective studies (Vandepitte et al. 2014; Dillane et al. 2014; Reverdy 2015).
IBPB and SCPB may cause complications such as phrenic nerve palsy, vocal cord paralysis, pneumothorax, and spinal cord injury. There were no block-related complications in our cases.
The patient who was administrated general anesthesia had medial clavicular fracture case. One of the patients who received additional sedation had medial fracture case, and the other three had midshaft fracture. These results support that IBPB provides analgesia in proximal humerus, shoulder joint, and 2/3 lateral part of the clavicle. The adverse events such as nausea, vomiting, and itching occurred in those who were administrated additional sedation/sedoanalgesia via opioid agents.
The combination of US-guided IBPB and SCPB may be used for anesthesia during clavicular fracture surgery for patients having high risk rate for general anesthesia. Further studies may be needed in terms of this.
All of the writers contributed to the writing, literature scanning, and block performing. All authors read and approved the final manuscript.
Ethics approval and consent to participate
Consent for publication
A written informed consent was obtained from the patients for publication.
The authors declare that they have no competing interests.
- Reverdy F (2015) Combined interscalene-superficial cervical plexus block for clavicle surgery: an easy technique to avoid general anesthesia. BJA 115(eLetters supplement). https://doi.org/10.1093/bja/el_12970.
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