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TY  - THES
AU  - Anna, Melzer
TI  - Analyse der Auswirkungen einer sequenziellen Ligament- und Facettenresektion auf die Biomechanik der Halswirbelsäule - eine experimentelle Humankadaverstudie
PB  - Rheinisch-Westfälische Technische Hochschule Aachen
VL  - Dissertation
CY  - Aachen
M1  - RWTH-2025-01871
SP  - 1 Online-Ressource : Illustrationen
PY  - 2025
N1  - Veröffentlicht auf dem Publikationsserver der RWTH Aachen University
N1  - Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2025
AB  - Ligament injuries of the cervical spine not only cause personal limitations for patients, but also have socioeconomic consequences. There is currently a lack of studies that comparatively examine all typical cervical spine ligaments (LSS, LIS, LIT, LF, KL, LLP, LLA) and the facet joints of the entire subaxial cervical spine (C2-7) in the three directions of movement (FE, LB, AR) under continuous load increase. In the present study, this was done by electromagnetic detection of the change in position in a load range of ±0.5 Nm under consecutive resections of the structures. The changes because of the individual resections are different at the different levels and directions. The KL and the WB play extensive roles in limiting movement in the different directions. In contrast, ligaments in the sagittal plane (LSS, LIS, LF, LLP, LLA) mainly influence the FE. This is also the direction of movement most frequently influenced by the individual resections in a statistically significant way, whereas the LB and AR are cumulatively influenced the most. Overall, the following hypotheses can be formulated and specified:1. As the number of resected structures increases, the BU of the WFE mostly increases. 2. The direction of movement opposite the resected structure is most affected, but not exclusively.3. The BU and the role of the individual structures vary between the different cervical spine levels and directions of movement.4. The BU of the WFE of the subaxial cervical spine increases non-linearly in vitro with a continuous increase in load. This can be explained by the increasing stiffness of the ligaments with increasing load.5. The LIT plays a significant role in the AR of the C2/3 level. The results presented are relevant both in everyday clinical practice and in interdisciplinary research, as they can be used to derive diagnostic and therapeutic options. This could facilitate future research and reduce its hurdles by saving human cervical spine samples. Studies for example in combination with bony fractures or intradiscal pressure measurement would be possible to gain further insights and complete the field of research.
LB  - PUB:(DE-HGF)11
DO  - DOI:10.18154/RWTH-2025-01871
UR  - https://publications.rwth-aachen.de/record/1005605
ER  -