CT Validation of Intraoperative Implant Position and Knee Alignment as Determined by the MAKO Total Knee Arthroplasty System.

The Journal of Knee Surgery
James D Sires, Christopher J Wilson

Abstract

Robotic-assisted technology in total knee arthroplasty (TKA) aims to increase implantation accuracy, with real-time data being used to estimate intraoperative component alignment. Postoperatively, Perth computed tomography (CT) protocol is a valid measurement technique in determining both femoral and tibial component alignments. The aim of this study was to evaluate the accuracy of intraoperative component alignment by robotic-assisted TKA through CT validation. A total of 33 patients underwent TKA using the MAKO robotic-assisted TKA system. Intraoperative measurements of both femoral and tibial component placements, as well as limb alignment as determined by the MAKO software were recorded. Independent postoperative Perth CT protocol was obtained (n = 29) and compared with intraoperative values. Mean absolute difference between intraoperative and postoperative measurements for the femoral component were 1.17 degrees (1.10) in the coronal plane, 1.79 degrees (1.12) in the sagittal plane, and 1.90 degrees (1.88) in the transverse plane. Mean absolute difference between intraoperative and postoperative measurements for the tibial component were 1.03 degrees (0.76) in the coronal plane and 1.78 degrees (1.20) in the sagittal plane...Continue Reading

Citations

May 26, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Ari SeidensteinSteven Ogden
Apr 5, 2021·SICOT-J·Sébastien LustigCécile Batailler
Sep 26, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Cécile BataillerSébastien Lustig
Nov 11, 2021·Archives of Orthopaedic and Trauma Surgery·Martin Roche

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