Variability in the distance between the suprascapular notch with the spine of the scapulae and the acromion.
Acromion
Spine of scapula
Suprascapular nerve block
Suprascapular notch
Journal
Clinical rheumatology
ISSN: 1434-9949
Titre abrégé: Clin Rheumatol
Pays: Germany
ID NLM: 8211469
Informations de publication
Date de publication:
08 Nov 2023
08 Nov 2023
Historique:
received:
08
09
2023
accepted:
30
10
2023
revised:
16
10
2023
medline:
8
11
2023
pubmed:
8
11
2023
entrez:
7
11
2023
Statut:
aheadofprint
Résumé
The suprascapular notch lies in the superior border of the scapula and is a passageway for the suprascapular nerve that is sensory to the shoulder joint. Suprascapular nerve block involves injection of local anaesthetic into the suprascapular notch, either ultrasound guided or blind, using the spine of scapula and/or the medial border of the acromion as surface landmarks. To investigate the anatomic variations that exist between the distance of the notch from the spine of scapula and acromion. Ninety-two dry scapulae were measured with a digital calliper for their length of the spine, distance between the midpoint of the spine and base of the suprascapular notch and distance between the medial border of the acromion and the base of the suprascapular notch. These measurements were compared for variations in the scapular bony landmarks, the spine and the acromion to determine the site for the injection. Measurement reliability was assessed by intraclass correlation, Cronbach's alpha being 0.99, 0.97 and 0.91 for length of spine, distance from spine and distance from acromion respectively. The distance from the acromion had less variation in measurement (3.73 ± 0.42 cm) but a flatter distribution when compared to distance from the spine of the scapula (3.32 ± 0.39 cm). Length of the spine of the scapula appeared not to influence either distance from the acromion or distance from the spine of scapula. There is potential for greater variability in placement of nerve blocks that use acromion as the bony reference. Key Points • Dry scapular measurement using electronic Vernier callipers is accurate (0.91-0.97). • There is potential for greater variability in placement of blind nerve blocks that use acromion as the bony reference to locate the suprascapular notch.
Identifiants
pubmed: 37935986
doi: 10.1007/s10067-023-06807-1
pii: 10.1007/s10067-023-06807-1
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2023. The Author(s).
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