Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical Study

The introduction of Taylor Spatial Frame (TSF) in clinical practice allows for unique capabilities in long bone deformity corrections; however, a comprehensive understanding of its mechanical characteristics and their impact on callus formation at the osteotomy site is still unclear. The current stu...

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Main Authors: Nikolaos Karamanis, Alexis T. Kermanidis, Leonidas A. Spyrou, Konstantinos Bargiotas, Sokratis Varitimidis, Nikolaos Aravas, Konstantinos N. Malizos
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/6/3837
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author Nikolaos Karamanis
Alexis T. Kermanidis
Leonidas A. Spyrou
Konstantinos Bargiotas
Sokratis Varitimidis
Nikolaos Aravas
Konstantinos N. Malizos
author_facet Nikolaos Karamanis
Alexis T. Kermanidis
Leonidas A. Spyrou
Konstantinos Bargiotas
Sokratis Varitimidis
Nikolaos Aravas
Konstantinos N. Malizos
author_sort Nikolaos Karamanis
collection DOAJ
description The introduction of Taylor Spatial Frame (TSF) in clinical practice allows for unique capabilities in long bone deformity corrections; however, a comprehensive understanding of its mechanical characteristics and their impact on callus formation at the osteotomy site is still unclear. The current study is concerned with the clinical application of TSF in high tibial osteotomy (HTO) and the mechanical testing of this device. Fifty-five (55) patients with symptomatic medial compartment knee osteoarthritis and varus deformity underwent open-wedge HTO with the use of TSF and were prospectively monitored with regard to callus formation pattern at the site of osteotomy. Clinical evaluation revealed that the callus formation pattern was eccentric in all patients. In addition, the experimental results from mechanical testing of a clinically relevant TSF configuration indicate, that vertical deflection of the upper bone part during weight-bearing is accompanied by a rotation of the bone axis, which acts in the same direction to the rotation applied during the clinical correction process. The complementary contributions of the deformity correction process and the mechanical response of the TSF under compressive loads, lead to asymmetric gap closure, which promotes the eccentric callus formation in the osteotomy site. The study provides useful information for clinical decision-making regarding callus formation process when TSF external fixator is applied in HTOs.
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spelling doaj.art-a16f265df0314887a19962a302f5b9aa2023-11-17T09:27:37ZengMDPI AGApplied Sciences2076-34172023-03-01136383710.3390/app13063837Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical StudyNikolaos Karamanis0Alexis T. Kermanidis1Leonidas A. Spyrou2Konstantinos Bargiotas3Sokratis Varitimidis4Nikolaos Aravas5Konstantinos N. Malizos6Department of Orthopaedic Surgery and Musculoskeletal Trauma, Faculty of Medicine, University of Thessaly, 41500 Larissa, GreeceDepartment of Mechanical Engineering, University of Thessaly, 38334 Volos, GreeceIBO Institute, Centre for Research & Technology Hellas (CERTH), 38333 Volos, GreeceDepartment of Orthopaedic Surgery and Musculoskeletal Trauma, Faculty of Medicine, University of Thessaly, 41500 Larissa, GreeceDepartment of Orthopaedic Surgery and Musculoskeletal Trauma, Faculty of Medicine, University of Thessaly, 41500 Larissa, GreeceDepartment of Mechanical Engineering, University of Thessaly, 38334 Volos, GreeceDepartment of Orthopaedic Surgery and Musculoskeletal Trauma, Faculty of Medicine, University of Thessaly, 41500 Larissa, GreeceThe introduction of Taylor Spatial Frame (TSF) in clinical practice allows for unique capabilities in long bone deformity corrections; however, a comprehensive understanding of its mechanical characteristics and their impact on callus formation at the osteotomy site is still unclear. The current study is concerned with the clinical application of TSF in high tibial osteotomy (HTO) and the mechanical testing of this device. Fifty-five (55) patients with symptomatic medial compartment knee osteoarthritis and varus deformity underwent open-wedge HTO with the use of TSF and were prospectively monitored with regard to callus formation pattern at the site of osteotomy. Clinical evaluation revealed that the callus formation pattern was eccentric in all patients. In addition, the experimental results from mechanical testing of a clinically relevant TSF configuration indicate, that vertical deflection of the upper bone part during weight-bearing is accompanied by a rotation of the bone axis, which acts in the same direction to the rotation applied during the clinical correction process. The complementary contributions of the deformity correction process and the mechanical response of the TSF under compressive loads, lead to asymmetric gap closure, which promotes the eccentric callus formation in the osteotomy site. The study provides useful information for clinical decision-making regarding callus formation process when TSF external fixator is applied in HTOs.https://www.mdpi.com/2076-3417/13/6/3837Taylor Spatial Framehigh tibial osteotomyTSF mechanicsmedial compartment osteoarthritisdeformity correctioncallus formation
spellingShingle Nikolaos Karamanis
Alexis T. Kermanidis
Leonidas A. Spyrou
Konstantinos Bargiotas
Sokratis Varitimidis
Nikolaos Aravas
Konstantinos N. Malizos
Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical Study
Applied Sciences
Taylor Spatial Frame
high tibial osteotomy
TSF mechanics
medial compartment osteoarthritis
deformity correction
callus formation
title Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical Study
title_full Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical Study
title_fullStr Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical Study
title_full_unstemmed Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical Study
title_short Taylor Spatial Frame Behavior in High Tibial Osteotomies: A Clinical–Mechanical Study
title_sort taylor spatial frame behavior in high tibial osteotomies a clinical mechanical study
topic Taylor Spatial Frame
high tibial osteotomy
TSF mechanics
medial compartment osteoarthritis
deformity correction
callus formation
url https://www.mdpi.com/2076-3417/13/6/3837
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