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Fig. 4 | BMC Musculoskeletal Disorders

Fig. 4

From: Real-time intraoperative 3D image intensifier-based navigation in reversed shoulder arthroplasty- analyses of image quality

Fig. 4

Intraoperative assessment of virtual accuracy. The reference clamp is positioned on the coracoid process (Ӿ). Following the pre-implantation 3D scan and before drilling the virtual accuracy was examined. a Intraoperatively, the surgeon sets the pointer (*) to previous defined anatomical landmarks (coracoid, cranial glenoid, inferior glenoid). b The pointer marked anatomical landmarks were controlled in the 3D scan displayed on the navigation screen in the different views (inline axial, inline sagittal and coronal). Virtual accuracy was graded excellent in case of no mismatch. A mismatch is defined as the difference between the virtually displayed and anatomical visible landmark

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