“…On the other hand, the outliers calculation was highly statistically significant, showing the cases that went outside of the safety zone of three degrees of deviation, which was the central aim of our efforts towards aligning the arthroplasties as well as possible. This parameter is widely used in the literature 2 , 3 , 4 , 6 , 9 , 10 , 11 , 12 , 14 , 15 , 16 , 17 . It is worth noting that the surgeon and auxiliary surgeon, between them, had experience of around 500 mechanical prostheses, while these were their first cases of navigated prostheses.…”