Torsion distale fémorale du genou : comparaison de la mesure par tomodensitométrie et par navigation peropératoire au cours des arthroplasties totales de genou

Galaud, B.; Beaufils, Philippe; Michaut, M.; Abadie, Pierre; Fallet, L.; Boisrenoult, Philippe

doi:10.1016/j.rco.2008.03.039

Cited by 37 publications

(14 citation statements)

References 17 publications

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“…The third limitation of our study is related to the absence of measurement of the rotational alignment of the implants. Limited accuracy for the navigation systems concerning the rotation measurement has been described in the literature with up to 6 of error related to interindividual and intraindividual variations during the palpation of the epicondyles and analysis of the rotation would have required a different study design potentially less adapted to the validation of our hypothesis focusing on the accuracy of bony resection [12]. In fact, we would have needed a CT scan to validate the rotation after implantation of the final implants.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of a New Robotically Assisted Technique for Total Knee Arthroplasty: A Cadaveric Study

Parratte

Price

Jeys

et al. 2019

The Journal of Arthroplasty

113

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Background: Although the utility of robotic surgery has already been proven in cadaveric studies, it is our hypothesis that this newly designed robotically assisted system will achieve a high level of accuracy for bone resection. Therefore, we aimed to analyze in a cadaveric study the accuracy to achieve targeted angles and resection thickness. Methods: For this study, 15 frozen cadaveric specimens (30 knees) were used. In this study, Zimmer Biomet (Warsaw, IN) knees, navigation system, and robot (ROSA Knee System; Zimmer Biomet) were used. Eight trained, board-certified orthopedic surgeons performed robotically assisted total knee arthroplasty implantation using the same robotic protocol with 3 different implant designs. The target angles obtained from the intraoperative planning were then compared to the angles of the bone cuts performed using the robotic system and measured with the computer-assisted system considered to be the gold standard. For each bone cut the resection thickness was measured 3 times by 2 different observers and compared to the values for the planned resections. Results: All angle mean differences were below 1 and standard deviations below 1. For all 6 angles, the mean differences between the target angle and the measured values were not significantly different from 0 except for the femoral flexion angle which had a mean difference of 0.95. The mean hip-knee-ankle axis difference was À0.03 ± 0.87. All resection mean differences were below 0.7 mm and standard deviations below 1.1mm. Conclusion: Despite the fact that this study was funded by Zimmer Biomet and only used Zimmer Biomet implants, robot, and navigation tools, the results of our in vitro study demonstrated that surgeons using this new surgical robot in total knee arthroplasty can perform highly accurate bone cuts to achieve the planned angles and resection thickness as measured using conventional navigation. Funding: This study is funded Zimmer Biomet.

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Section: Discussionmentioning

confidence: 99%

Accuracy of a New Robotically Assisted Technique for Total Knee Arthroplasty: A Cadaveric Study

Parratte

Price

Jeys

et al. 2019

The Journal of Arthroplasty

113

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“…A systematic error of 3° was found using the same navigation module by Van der Linden et al [30]. Several authors [13, 20] concluded that, because of this problem, preoperative CT scanning is a more appropriate method because of the fact that using computer navigation, rotation is still based on a controversial intraoperative identification of the axes. Also, averaging the different alignment axes will not solve this problem.…”

Section: Discussionmentioning

confidence: 99%

A computed tomography based study on rotational alignment accuracy of the femoral component in total knee arthroplasty using computer-assisted orthopaedic surgery

Zwaag

Bos

Heide

et al. 2010

International Orthopaedics (SICOT)

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Rotation of the femoral component in total knee arthroplasty (TKA) is of high importance in respect of the balancing of the knee and the patellofemoral joint. Though it is shown that computer assisted surgery (CAOS) improves the anteroposterior (AP) alignment in TKA, it is still unknown whether navigation helps in finding the accurate rotation or even improving rotation. Therefore the aim of our study was to evaluate the postoperative femoral component rotation on computed tomography (CT) with the intraoperative data of the navigation system. In 20 navigated TKAs the difference between the intraoperative stored rotation data of the femoral component and the postoperative rotation on CT was measured using the condylar twist angle (CTA). This is the angle between the epicondylar axis and the posterior condylar axis. Statistical analysis consisted of the intraclass correlation coefficient (ICC) and Bland-Altman plot. The mean intraoperative rotation CTA based on CAOS was 3.5° (range 2.4–8.6°). The postoperative CT scan showed a mean CTA of 4.0° (1.7–7.2). The ICC between the two observers was 0.81, and within observers this was 0.84 and 0.82, respectively. However, the ICC of the CAOS CTA versus the postoperative CT CTA was only 0.38. Though CAOS is being used for optimising the position of a TKA, this study shows that the (virtual) individual rotational position of the femoral component using a CAOS system is significantly different from the position on a postoperative CT scan.

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“…Nous avons montré [20] que le repérage peropératoire de l'axe transépicondylien sous navigation n'était pas fiable. Nous pensons que l'utilisation du scanner préopératoire est un moyen fiable pour apprécier la torsion épiphysaire distale du fémur.…”

Section: Discussionunclassified

Rotation fémorale par navigation sur la base d’un scanner préopératoire dans l’arthroplastie totale de genou : à propos de 70 cas

Michaut

Beaufils

Galaud

et al. 2008

Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Mo

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Torsion distale fémorale du genou : comparaison de la mesure par tomodensitométrie et par navigation peropératoire au cours des arthroplasties totales de genou

Cited by 37 publications

References 17 publications

Accuracy of a New Robotically Assisted Technique for Total Knee Arthroplasty: A Cadaveric Study

Accuracy of a New Robotically Assisted Technique for Total Knee Arthroplasty: A Cadaveric Study

A computed tomography based study on rotational alignment accuracy of the femoral component in total knee arthroplasty using computer-assisted orthopaedic surgery

Rotation fémorale par navigation sur la base d’un scanner préopératoire dans l’arthroplastie totale de genou : à propos de 70 cas

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