Sectional measurements of shoulder muscle volume and computed tomography density in anterior shoulder instability.

ABSTRACT: In patients with anterior shoulder instability (ASI), a chronic imbalance might exist between the anterior and posterior shoulder muscles (i.e., subscapular [Ssc] vs. infraspinatus and teres minor [Isp + TM]). The balance could be evaluated as the ratio of volume (VR _Ssc/Isp+TM) and computed tomography density (CT-DR _Ssc/Isp+TM) using a 3D sectional approach. A total of 28 CT images (19 patients) of non-pathological shoulders (clavicular fracture [CF]) and 17 CT images (17 patients) of ASI were used. Segmentation of Ssc and Isp + TM muscles was performed; the reconstructed models were separated by the Y-view plane and the planes situated 2.5 cm and 5 cm medial to the Y-view plane to generate muscle models. VR _Ssc/Isp+TM and CT-DR _Ssc/Isp+TM were

SUBMITTER: Nagawa K 

PROVIDER: S-EPMC11551204 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature