caa a22 4500 605456526 CHVBK 20210128100218.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00167-014-2889-5 doi (NATIONALLICENCE)springer-10.1007/s00167-014-2889-5 Deep-dished highly congruent tibial insert in CR-TKA does not prevent patellar tendon angle increase and patellar anterior translation [Elektronische Daten] [Ibrahim Akkawi, Francesca Colle, Danilo Bruni, Giovanni Raspugli, Simone Bignozzi, Stefano Zaffagnini, Francesco Iacono, Maurilio Marcacci] Purpose: Starting from the hypothesis that a deep-dished highly congruent tibial insert in cruciate-retaining total knee arthroplasty would prevent the increase in patellar tendon angle and anterior patellar translation by reducing the paradoxical anterior femoral translation, the main purpose of the present study was to investigate the effect of this prosthesis design, and secondary to assess the clinical outcomes at 6-month follow-up. Methods: Twenty patients treated with cruciate-retaining total knee arthroplasty with navigation technique were enrolled and prospectively followed up at 6months. The median value of age was 71years (57-83). Before and after surgery, the following parameters were calculated: patellar tendon angle, anterior-posterior and medio-lateral patellar translation, patellar height and range of motion. All patients were assessed with the SF-36 Physical Functioning and the Knee injury and Osteoarthritis Outcome Score ADL scores. Results: Patellar tendon angle and anterior patellar translation significantly increased in post-operative conditions (p<0.0001); a statistically significant medial patellar translation was found (p<0.0001), while patellar height did not show any difference between pre- and post-operative conditions (n.s). A significant correlation was found between patellar tendon angle and anterior patellar translation and the clinical scores (p<0.0417). There was a significant post-operative decrease (p<0.0033) in the range of motion. Conclusions: The present study failed to demonstrate that deep-dished highly congruent tibial insert prevents the anterior translation of the patella in cruciate-retaining total knee arthroplasty, thus causing inferior clinical scores. It provided useful information about the biomechanical role of the patella in total knee arthroplasty, allowing to choose the most appropriate surgical approach. Level of evidence: Case series, Level IV. Springer-Verlag Berlin Heidelberg, 2014 Total knee arthroplasty nationallicence Patellar tendon angle nationallicence Anterior patellar translation nationallicence Clinical scores nationallicence Akkawi Ibrahim Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Colle Francesca Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Bruni Danilo Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Raspugli Giovanni Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Bignozzi Simone Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Zaffagnini Stefano Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Iacono Francesco Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Marcacci Maurilio Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1622-1630 0942-2056 23:6<1622 2015 23 167 https://doi.org/10.1007/s00167-014-2889-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-2889-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Akkawi Ibrahim Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 700 1- Colle Francesca Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 700 1- Bruni Danilo Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 700 1- Raspugli Giovanni Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 700 1- Bignozzi Simone Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 700 1- Zaffagnini Stefano Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 700 1- Iacono Francesco Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 700 1- Marcacci Maurilio Biomechanics and Technological Innovation Laboratory, Codivilla-Putti Research Center, Bologna University, Via Di Barbiano 1-10, 40136, Bologna, Italy aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1622-1630 0942-2056 23:6<1622 2015 23 167