Z Orthop Unfall 2022; 160(06): 657-669
DOI: 10.1055/a-1647-3914
Originalarbeit

Why Insufficiency Fractures are Rarely Found in the Cervical Spine, Even with Osteoporosis

Article in several languages: deutsch | English
1   Klinik für Orthopädie und Unfallchirurgie, Warnow Klinik, Bützow, Deutschland
,
Laura Hiepe
2   Institut für Anatomie, Universitätsmedizin Rostock, Rostock, Deutschland
,
Mario Moritz
3   Klinik für Innere Medizin, Warnow Klinik, Bützow, Germany
,
Laura-Marie Vivell
4   Medizinische Fakultät, Universität Rostock, Rostock, Deutschland
,
Marko Schulze
5   Institut für Anatomie und Zellbiologie, Universität Bielefeld, Bielefeld, Deutschland
,
Heiner Martin
6   Institut für Biomedizinische Technik, Universitätsmedizin Rostock, Rostock, Deutschland
,
Andreas Götz
6   Institut für Biomedizinische Technik, Universitätsmedizin Rostock, Rostock, Deutschland
,
Julian Ramin Andresen
7   Medizinische Fakultät, Sigmund Freud Privat Universität Wien, Wien, Österreich
,
Claus-Maximilian Kullen
8   Institut für Diagnostische und Interventionelle Radiologie/Neuroradiologie, Westküstenklinikum Heide, Akademisches Lehrkrankenhaus der Universitäten Kiel, Lübeck und Hamburg, Heide, Deutschland
,
Reimer Andresen
8   Institut für Diagnostische und Interventionelle Radiologie/Neuroradiologie, Westküstenklinikum Heide, Akademisches Lehrkrankenhaus der Universitäten Kiel, Lübeck und Hamburg, Heide, Deutschland
,
Hans-Christof Schober
9   Klinik für Innere Medizin IV, Klinikum Südstadt Rostock, Akademisches Lehrkrankenhaus der Universität Rostock, Rostock, Deutschland
› Author Affiliations

Abstract

Introduction The human bone structure changes with an increase in age. Both material and structural properties affect bone strength. Despite the ageing of society, however, hardly any data are available on these parameters for elderly individuals. Therefore, in the present study, cancellous bone cylinders were taken from the center of each vertebral body (C3 to L5) and examined with regard to bone volume fraction, trabecular thickness, separation, number of trabeculae, cross-linking, connectivity density and degree of anisotropy.

Material and Methods Samples were obtained from 440 body donors using a Jamshidi needle and analysed using microcomputed tomography. Existing deformities, fractures and bone mineral density of each vertebra were recorded by quantitative computed tomography.

Results With regard to the microcomputed tomography parameters, statistically significant differences were found between the different sections of the vertebrae: the trabeculae of the cervical vertebrae were significantly thicker and more closely spaced than in the thoracic and lumbar vertebrae. The bone volume fraction was significantly higher in this spinal segment, as was the connection density and the number of trabeculae and cross-links. In addition, the degree of anisotropy was significantly lower in the cervical vertebrae than in the other spinal segments. With regard to quantitative computed tomography, there was a significantly higher bone mineral density in the cervical vertebrae.

Conclusion Even with osteoporosis, cervical vertebrae fracture significantly later than thoracic and lumbar vertebrae due to their unique microarchitecture and higher density. Thus, the cervical vertebrae has specific properties.



Publication History

Received: 17 May 2021

Accepted after revision: 15 September 2021

Article published online:
22 December 2021

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