Background: The acromion process is a lateral extension of the spine of the scapula. Anatomical variation in the coracoacromial arch and the underlying subacromial space has an important bearing on shoulder mechanics and surgical interventions. Impingement syndrome is a pathological condition that is predominantly found in people with truncated subacromial space. The present study deals with acromion measurements and their importance in pathological conditions of the shoulder region.
Methods: The present study was an observational study conducted on 126 adult human scapulae of unknown age and sex after obtaining ethical clearance. The following parameters were analyzed: acromion shape; maximum length of acromion (MLA); maximum breadth of acromion; thickness of acromion (TA); acromio-glenoid, and acromio-coracoid distance (ACD). Statistical analysis was done using Statistical Package for the Social Sciences (SPSS) version 19.0.
Results: Curved acromion was the most common shape in the present study; the mean length of the acromion was 44.34 ± 4.98 mm; mean breadth was 24.57 ± 2.57 mm; mean thickness was 7.18 ± 1.21 mm; mean ACD was 26.05 ± 3.94 mm; and the mean acromio-glenoid distance (AGD) was 18.17 ± 2.34 mm.
Conclusion: Acromion morphology is an important parameter for surgeons and anthropological scientists.
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