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1- Department of Nursing, Arak University of Medical Sciences, Arak, Iran.
2- Department of Medical Physics and Radiotherapy, School of Paramedical Sciences, Arak university of Medical Sciences and Khansari hospital, Arak, Iran.
3- Department of Anatomy, Arak University of Medical Sciences, Arak, Iran.
2- Department of Medical Physics and Radiotherapy, School of Paramedical Sciences, Arak university of Medical Sciences and Khansari hospital, Arak, Iran.
3- Department of Anatomy, Arak University of Medical Sciences, Arak, Iran.
Abstract: (10 Views)
Background and Aim: The glenoid cavity is an important component of the glenohumeral joint and plays a crucial role in shoulder stability and function. Variations in glenoid morphology and scapular dimensions may influence shoulder instability, prosthesis selection, and clinical outcomes following shoulder arthroplasty. This study aimed to evaluate the morphometric characteristics of the glenoid cavity and scapula and to investigate their correlation in the central Iranian adult population using computed tomography (CT).
Material and methods: Material and methods: In this retrospective study, CT scans of 63 adult individuals (one scapula per participant) from the central Iranian population were evaluated. The age and sex of all participants were known. Thirty-two scapulae were from the left side and 31 from the right side. Morphometric measurements, including maximum scapular height, maximum scapular width, superior-inferior (SI) glenoid diameter, and anterior-posterior (AP) glenoid diameter, were obtained. The relationship between scapular dimensions and glenoid cavity measurements was analyzed statistically, with significance set at p < 0.05.
Results: Among the 63 evaluated CT scans, 32 (50.8%) belonged to male subjects, with no significant difference in side distribution. Males demonstrated higher mean values for scapular and glenoid measurements compared with females; significant differences were observed in scapular width and glenoid height. No significant difference was observed in mean age between males and females. Significant positive correlations were found between scapular height and glenoid height (r = 0.873, p < 0.01) and between scapular height and glenoid width (r = 0.871, p < 0.01). No significant correlation was observed between age and scapular or glenoid dimensions.
Conclusion: The present study demonstrates significant sexual dimorphism in scapular morphology, with males showing larger scapular dimensions and greater glenoid height, particularly scapular width and glenoid height. These findings highlight the importance of considering sex-related anatomical variations in the design and selection of glenoid components for shoulder arthroplasty. Population-specific morphometric data may contribute to improved implant fitting and surgical outcomes.
Material and methods: Material and methods: In this retrospective study, CT scans of 63 adult individuals (one scapula per participant) from the central Iranian population were evaluated. The age and sex of all participants were known. Thirty-two scapulae were from the left side and 31 from the right side. Morphometric measurements, including maximum scapular height, maximum scapular width, superior-inferior (SI) glenoid diameter, and anterior-posterior (AP) glenoid diameter, were obtained. The relationship between scapular dimensions and glenoid cavity measurements was analyzed statistically, with significance set at p < 0.05.
Results: Among the 63 evaluated CT scans, 32 (50.8%) belonged to male subjects, with no significant difference in side distribution. Males demonstrated higher mean values for scapular and glenoid measurements compared with females; significant differences were observed in scapular width and glenoid height. No significant difference was observed in mean age between males and females. Significant positive correlations were found between scapular height and glenoid height (r = 0.873, p < 0.01) and between scapular height and glenoid width (r = 0.871, p < 0.01). No significant correlation was observed between age and scapular or glenoid dimensions.
Conclusion: The present study demonstrates significant sexual dimorphism in scapular morphology, with males showing larger scapular dimensions and greater glenoid height, particularly scapular width and glenoid height. These findings highlight the importance of considering sex-related anatomical variations in the design and selection of glenoid components for shoulder arthroplasty. Population-specific morphometric data may contribute to improved implant fitting and surgical outcomes.
Keywords: Scapula, Glenoid Cavity, Tomography, X-Ray Computed, Morphometry, Shoulder Joint, Shoulder Arthroplasty
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