Surgical accuracy of image-free versus image-based robotic-assisted total knee arthroplasty
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AbstractBackground: This study investigated the accuracy in achieving proper lower limb alignment and component positions after total knee replacement (TKR) with image-free and image-based robotic-assisted TKR.Methods: A total of 129 patients (166 knees) suffering from end-stage knee arthritis who underwent TKA operated by robotic-assisted surgery between the years 2018 and mid-2021 were recruited. Radiological outcomes were compared between image-free and image-based robotic-assisted surgical systems.Results: There were significant differences between the two robotic systems when comparing the mean planned component alignment and the mean measured alignment on radiographs, in which the image-free robotic-assisted system was more varus, whereas the image-based robotic-assisted system was more valgus for both the mean femoral and tibial component coronal alignment (p < 0.001). For tibial component sagittal alignment, the image-based group had a larger deviation from the planned posterior slope (p < 0.001).Conclusion: Image-free and image-based robotic assisted TKR had differing accuracy in femoral and tibial alignment.
All Author(s) ListYee DK, Ng JP, Lau CT, Ho KK, Man GC, Chu VW, Choi TL, Lam GYT, Ong MT, Yung PS
Journal nameInternational Journal of Medical Robotics and Computer Assisted Surgery
Year2024
Month2
Volume Number20
Issue Number1
PublisherWiley
Article numbere2574
ISSN1478-5951
eISSN1478-596X
LanguagesEnglish-United Kingdom

Last updated on 2024-04-06 at 09:58