Background <p>In addition to conventional instrumentation, modern technologies such as patient-specific instruments (PSI guides), computer-assisted navigation (CAN), augmented reality (AR), and mixed reality (MR) are increasingly used for implementing preoperative planning in shoulder arthroplasty.</p> Objective <p>This study aims to present current developments in intraoperative navigation technologies in shoulder arthroplasty and to critically evaluate the existing evidence.</p> Materials and methods <p>Existing literature on navigation in reverse shoulder arthroplasty was reviewed and evaluated with regard to its clinical applicability and relevance.</p> Results <p>Intraoperative navigation significantly improves the accuracy of implant positioning. Initial clinical studies also demonstrate better functional and radiological outcomes compared to conventional techniques. However, the use of CAN is associated with increased technical complexity, longer operative times, and higher costs.</p> Conclusion <p>Despite promising technological progress, limitations remain in terms of accuracy, workflow integration, and clinical implementation. Further high-quality prospective studies are required to fully validate the clinical benefits of modern technologies.</p>