Three-dimensional evaluation of scapular morphology in primary glenohumeral arthritis, rotator cuff arthropathy, and asymptomatic shoulders

Background Recently, the 3-dimensional (3D) morphology of coracoacromial complex in nonpathologic shoulders has been described. The aim this study was to evaluate and compare pathologic (glenohumeral osteoarthritis [GHOA] cuff tear arthropathy [CTA]) shoulders. Methods A 3D computed tomography reconstruction 205 scapulae performed (49 with GHOA, 48 CTA, 108 normal [NL]). Subsequently, center glenoid circle several points at coracoid, acromion, were determined. distances between these rotation calculated, acromion-glenoid angle measured. Results acromial overhang significantly different NL (37 mm) CTA (35 groups (P = .045), as well GHOA (33 .010). showed a significant difference (mean, 50°) 42°) < .001) .001). Furthermore, found height, which larger group (36 than (30 or Conclusion This morphologic that part turned more posteriorly both groups. we be cranial group. Finally, lateral observed 3 had group, turn