TY - JOUR A1 - , T1 - Quantitative study of the architecture of the human subacromial space and its relationship with rotator cuff tears JO - Eur. J. Anat. SN - 1136-4890 Y1 - 2008 VL - 12 SP - 39 EP - 45 UR - http://www.eurjanat.com/web/paper.php?id=08010039 KW - acromion KW - analytic method KW - anatomical variation KW - anatomy KW - article KW - comparative anatomy KW - controlled study KW - human KW - human experiment KW - morphology KW - muscle injury KW - normal human KW - quantitative study KW - rotator cuff rupture KW - scapula KW - space KW - subacromial space N2 - Rotator cuff tears usually cause a grinding facet in the undersurface of the acromion, called facies articularis acromialis, which is observable in dried scapulas. Some authors have related the pathogenesis of rotator cuff tears to an intrinsic degeneration of the cuff, while others have indicated that this pathology would be due to subacromial impingement. Some of the latter suggest that rotator cuff tears are associated with a narrowing of the subacromial space, mainly related to variations in the anatomy of the acromion. In order to obtain more information about the pathogenesis of rotator cuff tears we studied several anatomical parameters related to the architecture of the subacromial space in 112 human scapulas, divided into a healthy group and a pathological group depending on the lack or presence of a facies articularis acromialis in the undersurface of the acromion. The results obtained have not allowed us to identify significant differences in the different parameters studied in the two groups, not even in those related to the anatomy of the acromion. Our results, however, do allow us to suggest that rotator cuff tears seem to be more related to a primary degeneration of the cuff itself rather than to the anatomical characteristics of the subacromial space. ER -