Critical comments to the publication "Hevesi M, Macalena JA, Wu IT, Camp CL, Levy BA, Arendt EA, et al. (2018) High tibial osteotomy with modern PEEK implants is safe and leads to lower hardware removal rates when compared to conventional metal fixation: a multi-center comparison study. Knee Surgery, Sports Traumatology, Arthroscopy 1-11".