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Survival and functional outcome of revision total knee arthroplasty with a total stabilizer knee system: minimum 5 years of follow-up. Eur J Orthop Surg Traumatol. (2019) 29:1511–7. doi: 10.1007/s00590-019-02449-9 21. Limberg AK, Tibbo ME, Pagnano MW, Perry KI, Hanssen AD, Abdel MP. Varus-valgus constraint in 416 revision total knee arthroplasties with cemented stems provides a reliable reconstruction with a low subsequent revision rate at early to mid-term review. Bone Jt J. (2020) 102:458–62. doi: 10.1302/0301-620X.102B4.BJJ-2019-0719.R2 22. Greidanus NV, Peterson RC, Masri BA, Garbuz DS. Quality of life outcomes in revision versus primary total knee arthroplasty. J Arthroplasty. (2011) 26:615–20. doi: 10.1016/j.arth.2010.04.026 23. Kasmire KE, Rasouli MR, Mortazavi SMJ, Sharkey PF, Parvizi J. Predictors of functional outcome after revision total knee arthroplasty following aseptic failure. Knee. (2014) 21:264–7. doi: 10.1016/j.knee.2012.10.017 Conflict of Interest: P-AV reports grants, personal fees, and royalties from Microport Inc., grants and personal fees from Stryker, grants and personal fees from Medacta, and grants and personal fees from Johnson and Johnson, outside the submitted work. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Publisher’s Note: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher. Copyright © 2021 Kostretzis, Roby, Martinov, Kiss, Barry and Vendittoli. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. Frontiers in Surgery | www.frontiersin.org 16 August 2021 | Volume 8 | Article 721379 Kinematic Alignment Total Knee Revision rent concepts RT Open Rev. atic alignment ematic review. 90093 W. Validation ring clinically g therapy in 8) 15:1833–40. s DA, Scuderi uation system 015) 30:2311– oral and tibial hy technique. 8)80022-0 between the onal, sagittal 2014) 38:379– RK, Malkani e arthroplasty 17) 32:2480–3. ett R. Survival with a total Orthop Surg n AD, Abdel oplasties with w subsequent revision rate at early to mid-term review. Bone Jt J. (2020) 102:458–62. doi: 10.1302/0301-620X.102B4.BJJ-2019-0719.R2 22. Greidanus NV, Peterson RC, Masri BA, Garbuz DS. Quality of life outcomes in revision versus primary total knee arthroplasty. J Arthroplasty. (2011) 26:615–20. doi: 10.1016/j.arth.2010.04.026 23. Kasmire KE, Rasouli MR, Mortazavi SMJ, Sharkey PF, Parvizi J. Predictors of functional outcome after revision total knee arthroplasty following aseptic failure. Knee. (2014) 21:264–7. doi: 10.1016/j.knee.2012.10.017 Conflict of Interest: P-AV reports grants, personal fees, and royalties from Microport Inc., grants and personal fees from Stryker, grants and personal fees from Medacta, and grants and personal fees from Johnson and Johnson, outside the submitted work. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Publisher’s Note: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher. Copyright © 2021 Kostretzis, Roby, Martinov, Kiss, Barry and Vendittoli. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. 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