Better precision of a new robotically assisted system for total knee arthroplasty compared to conventional techniques: A sawbone model study

Abstract

Background The purpose of this study was to compare the accuracy of this new HURWA robotic‐assisted total knee arthroplasty (TKA) technique to the accuracy of the conventional technique in a sawbone model. Methods The HURWA robotic‐assisted TKA system was applied in the robotic group. After bone resection, all of these sawbones were scanned by the use of a structured light scanning system. Measurements of bone resections, femoral coronal and sagittal measurements, and tibial coronal and sagittal measurements were recorded. Results Compared to the conventional technique, the HURWA robotic‐assisted system significantly improved the accuracy of the bone resection levels and angles. In the robotic group, the accuracy of all of the bone resection levels was below 0.6 mm (with standard deviation [SD] below 0.6 mm), and all of the bone resection angles were below 0.6° (with SD below 0.4°). Conclusion Our data suggest that this novel HURWA robotic‐assisted system can significantly improve the accuracy of bone resection levels and angles.

Surgical accuracy and clinical outcomes of image‐free robotic‐assisted total knee arthroplasty

“…Multiple studies had shown that fewer Outliers in robotic TKA as compared with conventional TKA. [21][22][23][24] In Abbreviations: KFS, Knee Function Score (0-100); KSS, Knee Society Score (0-100); ROM, range of movement; TKA, total knee arthroplasty.…”

“…Robotic TKA uses computer software to convert anatomical information into a virtual patient‐specific three‐dimensional (3D) reconstruction of the knee which allows surgeons to plan and execute the bone cut. Multiple studies had shown that fewer Outliers in robotic TKA as compared with conventional TKA 21–24 . In our study, we used the Navio/CORI surgical system (Smith & Nephew) which are imageless semi‐active robotic TKA systems.…”

Robot‐assisted total knee arthroplasty system provides more precise control of the femoral rotation angle: A retrospective study

“…16 Several robot-assisted TKA (RA-TKA) systems have been approved by the National Medical Products Administration of China. [17][18][19] In this study, we utilised the RA-TKA system used in our previous research (Hangzhou Jianjia Robot Co. Ltd.) 3 for data collection and conducted a retrospective study to determine if RA-TKA was superior to conventional TKA (CON-TKA) in the following aspects: (1) the radiological parameters used to measure the rotation of the femoral and tibial components, (2) functional results based on the Knee Society Score (KSS), and (3) visual analogue scale (VAS) scores. We compared and analysed the radiographic and clinical outcomes of RA-TKA and CON-TKA using rotation angles, KSSs, and VAS scores as the primary evaluation indicators.…”