Moroder P, Akgun D, Plachel F, et al. - Researchers assumed that optimal humeral component retrotorsion to avoid notching and gain balanced rotational capacity would depend on scapular position and posture. This study examined 200 shoulders in 100 patients with available whole-body computed tomography scans and created 3-dimensional models. It was considered that in reverse total shoulder arthroplasty (RTSA), scapular orientation and posture should be integrated into the determination process of humeral component retrotorsion. The findings revealed that in patients with extensive internal rotation of the scapula, implantation of the humeral component with elevated retrotorsion leads to improved neutral opposition of the RTSA components. They propose the distinction of 3 different posture types (A-C) for enhanced appraisal of scapulothoracic orientation, on the basis of varying scapular internal rotation.