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15. Neutrality, normality, abnormality and pathology in coronal knee alignment: Why and how should we define it in the era of personalised medicine?

Author

Hirschmann, Michael T., von Eisenhart‐Rothe, Rüdiger, Graichen, Heiko, Vendittoli, Pascal‐André, Chen, Antonia F., Lustig, Sebastien, Leal, Joan, Tibesku, Carsten, and Bonnin, Michel

Subjects
INDIVIDUALIZED medicine, KNEE, RADIOSTEREOMETRY, PATHOLOGY, TOTAL knee replacement, NEUTRALITY
Abstract

The article discusses the importance of defining what is considered normal and abnormal in coronal knee alignment, particularly in the context of total knee arthroplasty (TKA). The standardization of TKA processes and products has led to improved outcomes and cost-efficiency, but off-the-shelf products do not fully restore an individual's knee morphology. The article emphasizes the need for more personalized surgeries and the restoration of individual anatomy. The definition of normality and pathology in coronal alignment is still a topic of debate, and further research and data analysis are needed to determine safe alignment targets. [Extracted from the article]

Published
2024
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20. Gegenwart und Zukunft von Robotik, Navigation, Individualimplantaten und Augmented Reality in der Endoprothetik: Ergebnisse einer DGOU Befragung

Author

Schnurr, Christoph, Beckmann, Johannes, Lüring, Christian M., Schlüter-Brust, Klaus, Tibesku, Carsten, Ettinger, Max, and Franke, Jochen

Subjects
Augmented Reality, Endoprothetik, Medicine and health, Robotik, Navigation, Evidenz
Abstract

Einleitung: In der Frage, ob moderne Technologien in der Endoprothetik das klinische Ergebnis verbessern und angewendet werden sollten, ist das Meinungsbild der orthopädischen Chirurgen gespalten. Es ist daher Ziel dieser Initiative der AGiTEC (Arbeitsgemeinschaft intraoperative Bildgebung und [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2022
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32. [Untitled]

Author

Meier, Malin, Calliess, Tilman, Tibesku, Carsten, and Beckmann, Johannes

Subjects
610 Medicine & health
Abstract

BACKGROUND Unicondylar knee arthroplasty offers the advantage that partial degenerative changes can be addressed with partial prosthetic solutions, thus preserving as much of the native joint as possible, including the cruciate ligaments. On the other hand, the number of revisions is still higher than for total knee endoprosthetics. In the literature, the causes mentioned are insufficient fit of the components as well as surgical errors. The use of new technologies to achieve a better fit and higher surgical precision and reproducibility, therefore, represents a promising approach. INDIVIDUAL ENDOPROSTHETICS Individual endoprosthetics offers the advantage that the prosthesis is adapted to the individual anatomy of each patient and not the patient's anatomy to the prosthesis, as is the case with standard prostheses. This allows for an optimal fit of the prosthesis while avoiding excessive bone resections and soft tissue releases. ROBOTICS The use of robotics in endoprosthetics makes it easier to correctly perform bone resections and align components. This ensures high and reproducible precision even for surgeons with lower case numbers. Studies on individual unicondylar endoprosthetics and robotics are reporting promising results. However, long-term results of high-quality randomized studies must be awaited in order to make a scientifically sound statement.

Published
2021
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33. Bicompartmental, medial and patellofemoral knee replacement might be able to maintain unloaded knee kinematics

Author

Yao, Daiwei, Akram, Imran, Daniilidis, Kiriakos, Labey, Luc, Innocenti, Bernardo, Tibesku, Carsten, Yao, Daiwei, Akram, Imran, Daniilidis, Kiriakos, Labey, Luc, Innocenti, Bernardo, and Tibesku, Carsten

Abstract

Introduction: Unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA) are standard procedures for treating knee joint arthritis. Neither UKA nor TKA seems to be optimally suited for patients with bicompartmental osteoarthritis that affects only the medial and patellofemoral compartments. A bicompartmental knee arthroplasty (BKA) was designed for this patient group. This study aimed to compare the effectiveness of a BKA and TKA in restoring the kinematics of the knee joint. Materials and methods: In this in vitro study, three types of knee arthroplasties (BKA, posterior cruciate ligament-retaining, and posterior cruciate ligament-resecting TKA) were biomechanically tested in six freshly frozen human cadaveric specimens. Complete three-dimensional kinematics was analyzed for each knee arthroplasty during both passive and loaded conditions in a validated knee kinematics rig. Infrared motion capture cameras and retroreflective markers were used for recording data. Results: No significant differences could be found between the three types of arthroplasties. However, similar kinematic changes between BKA and a native knee joint were documented under passive conditions. However, in a weight-bearing mode, a significant decrease in femoral rotation during the range of motion was found in arthroplasties compared to the native knee, probably caused by contraction of the quadriceps femoris muscle, which leads to a decrease in the anterior translation of the tibia. Conclusions: Kinematics similar to that of the natural knee can be achieved by BKA under passive conditions. However, no functional advantage of BKA over TKA was detected, which suggests that natural knee kinematics cannot be fully imitated by an arthroplasty yet. Further prospective studies are required to determine the anatomic and design factors that might affect the physiologic kinematics., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2021

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