Morphometry of the coraco-acromial arch in correlation with chronic impingement syndrome

ABSTRACT

The coracoacromial arch [C-A] was examined in 100 human adult dry scapulae for the presence and shape of degenerative changes [enthesopathy]. Morphometric measures were applied on the parts constituting the C-A arch, then the results were statistically analyzed and tabulated. The correlation between the values of each measure and the incidence of acromial enthesopathy were tested. The latter was found in 22% of scapulae and showed a significant correlation with the increase in the acromial length, slope and angle of the acromion consequently. Coracoid enthesopathy [spur] was present in only 5% of the specimens and showed a correlation with the increased coracoid prominence and the narrow coracoglenoid space