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Updated: Mar 23, 2026

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
Published on: February 10, 2015
ANATOMICAL RELATIONSHIP OF THE SUPRASCAPULAR NERVE TO THE CORACOID PROCESS, ACROMIOCLAVICULAR JOINT AND ACROMION
Bernardo Barcellos Terra1, Eric Figueiredo Gaspar2, Karina Levy Siqueira2
1Third-year resident physician in the Department of Orthopedics and Traumatology, Federal University of Sao Paulo.
Objective:
To establish the anatomical relationship of the suprascapular nerve (SSN) located in the suprascapular notch, to the medial border of the base of the coracoid process, the acromial joint surface of the acromioclavicular joint and the anterolateral border of the acromion.
Methods:
We dissected 16 shoulders of 16 cadavers (9 males and 7 females). The distances from the suprascapular nerve (at its passage beneath the transverse ligament) to certain fixed points on the medial border of the base of the coracoid process, the acromial joint surface of the acromioclavicular joint, and the anterolateral border of the acromion were measured with the aid of calipers and correlated with age and sex. Cadavers with previous surgical interventions were excluded.
Results:
The mean measurements from the notch of the suprascapular nerve were: 3.9 cm to the medial border of the base of the coracoid process (ranging from 3.1 cm to 5.2 cm); 4.7 cm to the acromioclavicular joint (ranging from 3.9 cm to 5.2 cm); and 6.1 cm to the anterolateral border of the acromion (ranging from 5.7 cm to 6.8 cm).
Conclusion:
Accurate anatomical knowledge of the nerves of the anterior region of the shoulder is essential in order to avoid iatrogenic injuries and to achieve satisfactory results in surgical treatment for shoulder diseases, whether performed as open or arthroscopic procedures.
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