German hospitals are increasingly being asked to improve efficiency while striving to enhance<br/>the quality of standards that will afford a high level of patient safety and quality in the<br/>treatment process. The main objective of this Ph.D. thesis was to analyze whether digital<br/>support software used during surgery has a positive effect on selected clinical process and<br/>quality ratios in orthopedics. Two retrospective case-control studies of 383 hip joint<br/>endoprosthetic implantations and 297 knee joint endoprosthetic implantations were<br/>conducted at a German hospital between 2015 and 2020. Statistically significant results were<br/>evaluated commercially within the framework of the German diagnosis-related groups.<br/>Results show that the use of digitally assisted surgery leads to significantly shorter hospital<br/>stays and reduces postoperative complications, which in turn has a direct impact on treatment<br/>costs and hospital revenues.