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Sexual Dimorphism in Suprascapular Notch Dimensions Among Young Adults

Abstract

The suprascapular notch is an important anatomical feature located along the superior border of the scapula and serves as a passageway for the suprascapular nerve and associated vessels. Variations in its dimensions may influence the anatomical relationship between the notch and the structures passing through it and may have implications for clinical conditions affecting the suprascapular nerve. Differences in skeletal morphology between males and females may also contribute to variations in suprascapular notch dimensions. The study will therefore examine sexual dimorphism in suprascapular notch dimensions among young adults. The study will determine and compare the width, depth, and other relevant dimensions of the suprascapular notch among male and female young adults. It will also examine the extent of variation in these measurements between the sexes and establish whether measurable differences exist in the morphology of the suprascapular notch. The study will provide anatomical data that may contribute to a better understanding of sex-related differences in scapular morphology. A cross-sectional descriptive research design will be adopted for the study. Young adult participants will be selected using an appropriate sampling technique, and the scapulae will be assessed using standardized anatomical landmarks and measurement procedures. Measurements of the suprascapular notch will be obtained through appropriate imaging-based or osteological assessment methods, depending on the study setting and available materials. The data obtained will be analyzed using descriptive statistics such as frequency, percentage, mean, and standard deviation, while appropriate inferential statistical tests will be used to compare measurements between male and female participants. The study is expected to reveal measurable variation in suprascapular notch dimensions between male and female young adults. Differences may be observed in parameters such as notch width, notch depth, and dimensional ratios, reflecting sex-related variation in scapular morphology. The findings are also expected to provide information on the distribution of suprascapular notch measurements and contribute to the identification of anatomical patterns that may be relevant to morphometric and comparative anatomical studies. The findings will be useful to anatomists, anthropologists, radiologists, orthopaedic surgeons, physiotherapists, and other healthcare professionals involved in the assessment and management of the shoulder region. Information on sexual dimorphism in suprascapular notch dimensions may assist in anatomical identification, interpretation of imaging findings, understanding of suprascapular nerve relationships, and planning of procedures involving the scapular region. The study may also provide reference data for future research involving scapular morphology and upper limb anatomy. The study will conclude by providing an anatomical assessment of sexual dimorphism in suprascapular notch dimensions among young adults. It is expected to demonstrate whether significant sex-related differences exist in the measured characteristics of the notch. The study will recommend the use of standardized measurement procedures in future investigations and encourage further research involving larger and more diverse populations to improve the understanding of variation in suprascapular notch morphology.

Keywords: Suprascapular notch, sexual dimorphism, scapula, notch dimensions, scapular morphology, suprascapular nerve, shoulder anatomy, scapular morphometry, anatomical variation, osteology, radiological anatomy, sex-related differences, upper limb anatomy, young adults, anatomical landmarks.