Kinematic alignment in robotic total knee arthroplasty

Introduction There are two main concepts of total knee arthroplasty: mechanical and anatomical alignment of the lower limb axis. Howell et al. (2013) proposed the concept of kinematic alignment, the main idea of which is to preserve the level of the joint line and the axis of the lower limb that p...

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Main Authors: Alexey V. Lychagin, Andrey A. Gritsyuk, Eugene B. Kalinsky, Yaroslav A. Rukin, Mikhail P. Elizarov, Andrey А. Gritsyuk, Maxim Ya. Gavlovsky, Konstantin Kh. Tomboidi, Milana L. Babaeva
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Language:English
Published: Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics 2024-12-01
Series:Гений oртопедии
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author Alexey V. Lychagin
Andrey A. Gritsyuk
Eugene B. Kalinsky
Yaroslav A. Rukin
Mikhail P. Elizarov
Andrey А. Gritsyuk
Maxim Ya. Gavlovsky
Konstantin Kh. Tomboidi
Milana L. Babaeva
author_facet Alexey V. Lychagin
Andrey A. Gritsyuk
Eugene B. Kalinsky
Yaroslav A. Rukin
Mikhail P. Elizarov
Andrey А. Gritsyuk
Maxim Ya. Gavlovsky
Konstantin Kh. Tomboidi
Milana L. Babaeva
author_sort Alexey V. Lychagin
collection DOAJ
description Introduction There are two main concepts of total knee arthroplasty: mechanical and anatomical alignment of the lower limb axis. Howell et al. (2013) proposed the concept of kinematic alignment, the main idea of which is to preserve the level of the joint line and the axis of the lower limb that patients had before the onset of osteoarthritis. Initially, kinematic alignment was proposed to be performed with individual guides based on the results of CT/MRI scans but they took a long time to manufacture, were difficult to install, broke down, and were quite expensive. Introduction of robotic orthopaedic systems into clinical practice enabled to plan and perform bone resection with high accuracy, to install the components of the implant system according to the necessary concept thus providing new opportunities for the application of kinematic alignment, which was the purpose of our study. Purpose To study the possibilities of a robotic surgical system in performing restricted kinematic alignment in total knee arthroplasty (TKA). Materials and methods A prospective single-center study was conducted in 47 patients (12 men and 35 women) with knee osteoarthritis in Kellgren – Lawrence grades 3–4, an average age of (65.87 ± 7.4) years, an average BMI of (31.3 ± 4.7) kd/m2, median HKA angle of 175°, median LDFA of 87°, median MPTA of 87°. The patients underwent robotic total knee arthroplasty (RoTKA) with the method of restricted kinematic alignment. Results On the control whole-leg radiographs, the average HKA angle after surgery was (176 ± 1.5)°. In 42.6 % of cases, the deviation from the plan was within ± 1°, the deviation ± 2° in 44.7 % of cases, and in the remaining 12.7 % of cases the deviation was negative. Discussion In the literature, we did not find the results of radiographic evaluation of the HKA angle in the coronal view before and after robotic total knee arthroplasty and their comparison with the results of preoperative planning using the kinematic alignment method of the limb axis. The results we obtained show high accuracy of the implementation of the preoperative plan. Conclusion A personalized approach to TKA with application of an autonomous robotic system effectively provides kinematic alignment of the axis of the lower limb with an accuracy of up to 2° in 87.3 % of patients.
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spelling doaj-art-60ee37a70ffd479e81b835a1f18d50d12024-12-23T04:12:27ZengRussian Ilizarov Scientific Center for Restorative Traumatology and OrthopaedicsГений oртопедии1028-44272542-131X2024-12-0130684585410.18019/1028-4427-2024-30-6-845-854Kinematic alignment in robotic total knee arthroplastyAlexey V. Lychagin0https://orcid.org/0000-0002-2202-8149Andrey A. Gritsyuk1https://orcid.org/0000-0003-4202-4468Eugene B. Kalinsky2https://orcid.org/0000-0002-8103-5613Yaroslav A. Rukin3https://orcid.org/0000-0001-7355-8556Mikhail P. Elizarov4https://orcid.org/0000-0002-4811-5718Andrey А. Gritsyuk5https://orcid.org/0000-0002-3135-7526Maxim Ya. Gavlovsky6https://orcid.org/0009-0002-8854-6843Konstantin Kh. Tomboidi7https://orcid.org/0009-0001-2342-504XMilana L. Babaeva8https://orcid.org/0009-0005-3402-3299First Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationFirst Moscow State Medical University named after I.M. Sechenov (Sechenov University), Moscow, Russian FederationIntroduction There are two main concepts of total knee arthroplasty: mechanical and anatomical alignment of the lower limb axis. Howell et al. (2013) proposed the concept of kinematic alignment, the main idea of which is to preserve the level of the joint line and the axis of the lower limb that patients had before the onset of osteoarthritis. Initially, kinematic alignment was proposed to be performed with individual guides based on the results of CT/MRI scans but they took a long time to manufacture, were difficult to install, broke down, and were quite expensive. Introduction of robotic orthopaedic systems into clinical practice enabled to plan and perform bone resection with high accuracy, to install the components of the implant system according to the necessary concept thus providing new opportunities for the application of kinematic alignment, which was the purpose of our study. Purpose To study the possibilities of a robotic surgical system in performing restricted kinematic alignment in total knee arthroplasty (TKA). Materials and methods A prospective single-center study was conducted in 47 patients (12 men and 35 women) with knee osteoarthritis in Kellgren – Lawrence grades 3–4, an average age of (65.87 ± 7.4) years, an average BMI of (31.3 ± 4.7) kd/m2, median HKA angle of 175°, median LDFA of 87°, median MPTA of 87°. The patients underwent robotic total knee arthroplasty (RoTKA) with the method of restricted kinematic alignment. Results On the control whole-leg radiographs, the average HKA angle after surgery was (176 ± 1.5)°. In 42.6 % of cases, the deviation from the plan was within ± 1°, the deviation ± 2° in 44.7 % of cases, and in the remaining 12.7 % of cases the deviation was negative. Discussion In the literature, we did not find the results of radiographic evaluation of the HKA angle in the coronal view before and after robotic total knee arthroplasty and their comparison with the results of preoperative planning using the kinematic alignment method of the limb axis. The results we obtained show high accuracy of the implementation of the preoperative plan. Conclusion A personalized approach to TKA with application of an autonomous robotic system effectively provides kinematic alignment of the axis of the lower limb with an accuracy of up to 2° in 87.3 % of patients.keywords: knee jointrobotrestricted kinematic alignmentrobotic total knee arthroplasty
spellingShingle Alexey V. Lychagin
Andrey A. Gritsyuk
Eugene B. Kalinsky
Yaroslav A. Rukin
Mikhail P. Elizarov
Andrey А. Gritsyuk
Maxim Ya. Gavlovsky
Konstantin Kh. Tomboidi
Milana L. Babaeva
Kinematic alignment in robotic total knee arthroplasty
Гений oртопедии
keywords: knee joint
robot
restricted kinematic alignment
robotic total knee arthroplasty
title Kinematic alignment in robotic total knee arthroplasty
title_full Kinematic alignment in robotic total knee arthroplasty
title_fullStr Kinematic alignment in robotic total knee arthroplasty
title_full_unstemmed Kinematic alignment in robotic total knee arthroplasty
title_short Kinematic alignment in robotic total knee arthroplasty
title_sort kinematic alignment in robotic total knee arthroplasty
topic keywords: knee joint
robot
restricted kinematic alignment
robotic total knee arthroplasty
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