Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty

The first experience in robotic total knee arthroplasty (RoTKA) has been obtained resulting in the questions about clinical efficiency and accuracy of lower limb alignment. Objective To clarify clinical evaluation and accuracy of alignment of the mechanical axis of the lower limb in RoTKA. Materia...

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Main Authors: Alexey V. Lychagin, Andrey A. Gritsyuk, Yaroslav A. Rukin, Mikhail P. Elizarov, Andrey А. Gritsyuk, Maxim Ya. Gavlovsky, Timofey V. Bogatov
Format: Article
Language:English
Published: Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics 2023-10-01
Series:Гений oртопедии
Subjects:
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author Alexey V. Lychagin
Andrey A. Gritsyuk
Yaroslav A. Rukin
Mikhail P. Elizarov
Andrey А. Gritsyuk
Maxim Ya. Gavlovsky
Timofey V. Bogatov
author_facet Alexey V. Lychagin
Andrey A. Gritsyuk
Yaroslav A. Rukin
Mikhail P. Elizarov
Andrey А. Gritsyuk
Maxim Ya. Gavlovsky
Timofey V. Bogatov
author_sort Alexey V. Lychagin
collection DOAJ
description The first experience in robotic total knee arthroplasty (RoTKA) has been obtained resulting in the questions about clinical efficiency and accuracy of lower limb alignment. Objective To clarify clinical evaluation and accuracy of alignment of the mechanical axis of the lower limb in RoTKA. Materials and methods Twenty-nine patients with osteoarthritis of the knee of Kellgren-Lawrence stage 3-4 underwent RoTKA. The knee joint was assessed with VAS, WOMAC, FJS-12; the range of motion was measured. The changes in the axis of the lower limb were evaluated on the full limb length radiographs. Results Pain before the surgery according to VAS was 5.8 ± 1.5 points, on the first day after the surgery it was 8.5 ± 1.4, on day 3 – 5.9 ± 1.2, on day 12 – 2.9 ± 1.1. The range of motion on the first day after the surgery was 99.5° ± 1.4°, three months later – 115.1° ± 1.1°, six months later – 125.6 ± 1.5°, one year later– 127.5 ± 1.6°. The WOMAC score before the surgery was 32.7 ± 3.3, after the surgery 25.1 ± 2.1, three months later 7.3 ± 1.3, six months later 2.8 ± 0.2, and after one year – 1.3 ± 0.5. The FJS-12 score 3 months after the surgery was 68.2 ± 4.1, after 6 months 80.3 ± 2.9, after one year 94.0 ± 2.1. The analysis of postoperative full length roentgenograms in 72 % of cases (n = 21) did not reveal any deviation of the mechanical axis from the planned one and in 28 % of cases (n = 8) the deviation of the mechanical axis was up to 1° from the planned one. Discussion Neither technical difficulties nor complications inherent to RoTKA were found. According to the results of VAS, WOMAC and FJS‑12 questionnaires, and the assessment of the range of motion, a positive dynamics was observed. According to the results of tele-roentgenograms, there was alignment of the limb axis and the accuracy of the position of the endoprosthesis components. Conclusion The study of this technology has demonstrated safety, accuracy of alignment of the mechanical axis, validity of indications and contraindications, and stable early clinical results.
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spelling doaj.art-cfd9a8d084e24fc38971f8daeae0a84b2023-10-27T07:45:26ZengRussian Ilizarov Scientific Center for Restorative Traumatology and OrthopaedicsГений oртопедии1028-44272542-131X2023-10-0129548749410.18019/1028-4427-2023-29-5-487-494Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplastyAlexey V. Lychagin0Andrey A. Gritsyuk1Yaroslav A. Rukin2Mikhail P. Elizarov3Andrey А. Gritsyuk4Maxim Ya. Gavlovsky5Timofey V. Bogatov6First 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 FederationThe first experience in robotic total knee arthroplasty (RoTKA) has been obtained resulting in the questions about clinical efficiency and accuracy of lower limb alignment. Objective To clarify clinical evaluation and accuracy of alignment of the mechanical axis of the lower limb in RoTKA. Materials and methods Twenty-nine patients with osteoarthritis of the knee of Kellgren-Lawrence stage 3-4 underwent RoTKA. The knee joint was assessed with VAS, WOMAC, FJS-12; the range of motion was measured. The changes in the axis of the lower limb were evaluated on the full limb length radiographs. Results Pain before the surgery according to VAS was 5.8 ± 1.5 points, on the first day after the surgery it was 8.5 ± 1.4, on day 3 – 5.9 ± 1.2, on day 12 – 2.9 ± 1.1. The range of motion on the first day after the surgery was 99.5° ± 1.4°, three months later – 115.1° ± 1.1°, six months later – 125.6 ± 1.5°, one year later– 127.5 ± 1.6°. The WOMAC score before the surgery was 32.7 ± 3.3, after the surgery 25.1 ± 2.1, three months later 7.3 ± 1.3, six months later 2.8 ± 0.2, and after one year – 1.3 ± 0.5. The FJS-12 score 3 months after the surgery was 68.2 ± 4.1, after 6 months 80.3 ± 2.9, after one year 94.0 ± 2.1. The analysis of postoperative full length roentgenograms in 72 % of cases (n = 21) did not reveal any deviation of the mechanical axis from the planned one and in 28 % of cases (n = 8) the deviation of the mechanical axis was up to 1° from the planned one. Discussion Neither technical difficulties nor complications inherent to RoTKA were found. According to the results of VAS, WOMAC and FJS‑12 questionnaires, and the assessment of the range of motion, a positive dynamics was observed. According to the results of tele-roentgenograms, there was alignment of the limb axis and the accuracy of the position of the endoprosthesis components. Conclusion The study of this technology has demonstrated safety, accuracy of alignment of the mechanical axis, validity of indications and contraindications, and stable early clinical results.knee jointrobottotal knee arthroplastyrobotic total knee arthroplasy
spellingShingle Alexey V. Lychagin
Andrey A. Gritsyuk
Yaroslav A. Rukin
Mikhail P. Elizarov
Andrey А. Gritsyuk
Maxim Ya. Gavlovsky
Timofey V. Bogatov
Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty
Гений oртопедии
knee joint
robot
total knee arthroplasty
robotic total knee arthroplasy
title Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty
title_full Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty
title_fullStr Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty
title_full_unstemmed Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty
title_short Clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty
title_sort clinical evaluation and accuracy of mechanical axis alignment in robotic total knee arthroplasty
topic knee joint
robot
total knee arthroplasty
robotic total knee arthroplasy
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