ANATOMICAL LOCATION OF THE AXILLARY NERVE IN RELATION TO THE ACROMION PROCESS: A CADAVERIC STUDY
Authors: Anita Rajesh Deshmukh
DOI: 10.5281/zenodo.17277004
Published: October 2025
Abstract
<p><em>Commonest cause of axillary nerve lesion is trauma. Many workers have studied the safe area for axillary nerve by measuring its distance from various landmarks. Sixty formalin fixed cadaveric shoulders were dissected. After proper exposure of axillary nerve and acromian process of scapula, distance of axillary nerve was measured from lateral edge, anterior and posterior edge of acromian process in neutral position. Distance was noted in adduction and abduction. Arm length and full arm length were measured. Mean, standard deviation, range was calculated. Mean distance of the nerve in neutral position was compared to the arm length and the full arm length using SPSS 11 software. </em></p> <p><em>Mean distance from lateral edge of Acromian process was 5.62 ± 0.6 cm. In 900 abduction it was 4.28 ± 0.6 cm. and 5.75 ± 0.6 cm. 100 adduction. In neutral position strong correlation was observed with arm length (r = 0.39, p <0.002) and with full arm length. (r = 0.29, p <0.02) Distance of axillary nerve depends on arm position and the nerve is more prone to injury in abduction. It showed stronger correlation with upper arm length. Deltoid incision of about 3.5 cm should theoretically prevent the injury to axillary nerve</em></p>
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