Abstract
Abstract Background: The common cause of axillary nerve injury is due to lack of knowledge about the safe position of the nerve during orthopedic surgeries. Many workers have studied the safe area for axillary nerve by measuring its distance from various landmarks. The aim of the present study is to find the average distance of the location of the axillary nerve from the acromion process in the cadavers. Materials and Methods: 50 Shoulder region specimens from 25 cadavers (aged 45-55 years; both male and female sex) available in the department of Anatomy, BGS Global Institute of Medical Sciences, Bengaluru were utilized for the present study. After methodical dissection of shoulder region we measured the distance from 1) Lateral aspect of acromion processes to root of axillary nerve and 2) Posterior aspect of acromion processes to root of axillary nerve using measuring tape ( in centimeters) on both sides. The descriptive statistics including mean, standard deviation and quartile range were calculated for the measurements on both sides using SPSS software version16. Results: The mean distance of axillary nerve from the lateral edge of the acromion process was 6.39±0.8 cm on right side and 6.33±0.7cm on left side. The mean distance from posterior aspect of acromion process was 5.89±0.6 cm on right side and 5.82±0.6 cm on left side. Quartile distribution showed that, in 75% individuals the distance between lateral aspect of acromion process and axillary nerve was 7cm on both sides. The distance between posterior aspect of acromion process and axillary nerve was 6.4 cm on right side and 6.5 cm on left side. Conclusion: Knowledge of morphometric distance of axillary nerve from the acromion process is important in deltoid split surgeries and while giving intramuscular injection to deltoid region.
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