Ultrasonographic visualization of anatomical variations of the supraclavicular nerves.
anatomical variations
supraclavicular nerves
ultrasonography
Journal
Clinical anatomy (New York, N.Y.)
ISSN: 1098-2353
Titre abrégé: Clin Anat
Pays: United States
ID NLM: 8809128
Informations de publication
Date de publication:
08 Aug 2023
08 Aug 2023
Historique:
revised:
21
06
2023
received:
11
01
2023
accepted:
16
07
2023
medline:
8
8
2023
pubmed:
8
8
2023
entrez:
8
8
2023
Statut:
aheadofprint
Résumé
Typical anatomy of the supraclavicular nerve (SCN) is described as originating from the cervical plexus and dividing into medial, intermediate, and lateral branches. The SCN is vulnerable to injury during clavicular surgery, leading to altered sensation post-operatively. There is also increasing interest in anesthetizing the SCN in shoulder or clavicular surgery. Utilizing a high-frequency (20 MHz) ultrasound probe, 20 healthy volunteers were scanned, giving data for 40 SCNs. For each nerve, anatomical course and branches were graphically plotted using a custom Python 3.8.12 program and Microsoft Excel. Of 40 nerves, only 19 (47.5%) demonstrated a typical course, with the rest showing considerable variability of branching patterns. Crossing branches (CBs) were found in 24 (60%) with a total of 54. Just over half (29, 54.7%) of these crossed the clavicle lateral to its midpoint, with 32 (59.6%) CBs having a diameter of ≥25% compared to that of the SCN main trunk. The distance from the mid-clavicular point at which the branches crossed the clavicle was recorded. This study demonstrated that over half the SCNs had atypical branching patterns with intra-volunteer variability. Preoperative mapping may be useful in preventing injury and subsequent numbness.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2023 American Association of Clinical Anatomists and British Association of Clinical Anatomists.
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