Determining the Normal Glenoid Version in the Indian Population

Area of Science:

• Orthopedics
• Radiology
• Anatomy

Background:

• Glenoid version, the angle of the glenoid relative to the scapula, averages 0°±10° with a slight retroversion tendency.
• Factors like handedness, gender, ethnicity, and pathology influence glenoid version.
• Altered glenoid version impacts shoulder biomechanics and is associated with arthritis and instability.

Purpose of the Study:

• To determine the normal range of glenoid version in the population.
• To assess the relationship between gender and glenoid version.
• To investigate glenoid version in the Indian population.

Main Methods:

• Retrospective observational study of 200 shoulders.
• Computed tomography (CT) images were reviewed to measure glenoid version angle.
• Statistical analysis performed using SPSS v.22, with p<0.05 considered significant.

Main Results:

• The Indian population showed a propensity towards anteversion, contrasting with previous findings of retroversion.
• Males exhibited a significantly lower mean glenoid version than females.
• The right shoulder had a significantly lower mean glenoid version compared to the left shoulder.

Conclusions:

• The Indian population's propensity towards anteversion has implications for shoulder arthroplasty.
• Lower degrees of glenoid version in males and on the right side are significant findings.
• Understanding glenoid version is crucial for early pathology identification, surgical planning, and restoration of shoulder function.