Comparison between navigated reported position and postoperative computed tomography to evaluate accuracy in a robotic navigation system in total knee arthroplasty

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dc.contributor.authorFigueroa, Francisco
dc.contributor.authorWakelin, Edgar
dc.contributor.authorTwiggs, Joshua
dc.contributor.authorFritsch, Brett
dc.date.accessioned2022-07-19T14:15:50Z
dc.date.available2022-07-19T14:15:50Z
dc.date.issued2019
dc.description.abstractBackground: Computer navigation increases reproducibility compared to non-navigated total knee arthroplasty (TKA). Robotics navigation is a branch of computer navigation technology that might further improve accuracy of implant placement. The aim of this study is to assess the accuracy achieved in TKA with a robotic navigation system. Methods: One hundred seventy three knees. System studied: Omni navigation System (OMNI, Raynham, MA). Navigated femoral and tibial cuts were compared to postoperative computed tomography (CT). Measurements reviewed: femoral coronal alignment (FCA), femoral sagittal alignment (FSA), femoral rotational alignment (FRA), tibial coronal alignment (TCA), tibial sagittal alignment (TSA) and hip-knee-ankle (HKA) angle. Statistical analysis was made using R. Results: The mean differences between the navigated reported and the CT positions were: FCA: 0.1 ± 1.2° more varus (P = 0.58), FSA: 1.5 ± 0.3° more flexed (P < 0.001), FRA: 0.0 ± 1.7° (P = 0.93), TCA: 0.7 ± 1.1° more varus (P < 0.001), TSA: -1.3 ± 1.5 more negative slope (P < 0.001), HKA angle: 0.4 ± 2.4 more varus (P < 0.049). The percentages of concordance inside a three degree difference were: FCA: 98% (169 knees), FSA: 100% (173 knees), FRA: 94% (162 knees), TCA: 99% (171 knees), TSA: 93% (161 knees) and HKA angle: 83% (144 knees). Conclusions: The current study showed that the robotic navigation system studied is highly accurate regarding final implant positioning for FCA, FRA and TCA. It has less accuracy in FSA, TSA and the HKA angle.es
dc.description.versionVersión Publicadaes
dc.identifier.citationFigueroa F, Wakelin E, Twiggs J, Fritsch B. Comparison between navigated reported position and postoperative computed tomography to evaluate accuracy in a robotic navigation system in total knee arthroplasty. Knee. 2019 Aug;26(4):869-875. doi: 10.1016/j.knee.2019.05.004.es
dc.identifier.urihttp://doi.org/10.1016/j.knee.2019.05.004es
dc.identifier.urihttp://hdl.handle.net/11447/6375
dc.language.isoenes
dc.subjectNanoBlockes
dc.subjectOMNIes
dc.subjectRoboticses
dc.subjectTKAes
dc.subjectiBlockes
dc.titleComparison between navigated reported position and postoperative computed tomography to evaluate accuracy in a robotic navigation system in total knee arthroplastyes
dc.typeArticlees
dcterms.sourceThe Kneees

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