Sacroiliac joint auricular surface morphology modulates its mechanical environment

Petr Henyš; Niels Hammer

doi:10.1111/joa.14160

journal article Open Access Nov 18, 2024

Sacroiliac joint auricular surface morphology modulates its mechanical environment

Petr Henyš Niels Hammer

Journal of Anatomy Vol. 246 No. 2 pp. 258-271 · Wiley

View at Publisher Save 10.1111/joa.14160

Abstract

AbstractThe sacroiliac joint (SIJ) exhibits significant variation in auricular surface morphology. This variation influences the mechanics of the SIJ, a central node for transmitting mechanical energy from upper body to lower limbs and vice versa. The impact of the auricular surface morphology on stress and deformation in the SIJ remains poorly understood to date. Computed tomography scans obtained from 281 individuals were included to extract the geometry of the pelvic ring. Then, the auricular surface area, SIJ cartilage thickness, and total SIJ cartilage volume were identified. Based on these reconstructions, 281 finite element models were created to simulate SIJ mechanical loading. It was found that SIJ cartilage thickness only weakly depended on age or laterality, while being strongly sex sensitive. Auricular surface area and SIJ cartilage volume depended weakly and non‐linearly on age, peaking around menopause in females, but without significant laterality effect. Larger SIJs, characterized by greater auricular area and cartilage volume, exhibited reduced stress and deformation under loading. These findings highlight the significant role of SIJ morphology in its biomechanical response, suggesting a potential link between morphological variations and the risk of SIJ dysfunction. Understanding this relationship could improve diagnosis and targeted treatment strategies for SIJ‐related conditions.

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Metrics

6

Citations

48

References

Details

Published: Nov 18, 2024
Vol/Issue: 246(2)
Pages: 258-271
License: View

Authors

P

Petr Henyš

Institute of New Technologies and Applied Informatics, Faculty of Mechatronics, Informatics and Interdisciplinary Studies Technical University of Liberec Liberec Czechia

N

Niels Hammer

Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center Medical University Graz Graz Austria; Department of Orthopedic and Trauma Surgery University of Leipzig Leipzig Germany; Division of Biomechatronics Fraunhofer Institute for Machine Tools and Forming Technology IWU Dresden Germany

Funding

Grantova Agentura Ceske Republiky Award: 24‐10862S

Cite This Article

Petr Henyš, Niels Hammer (2024). Sacroiliac joint auricular surface morphology modulates its mechanical environment. Journal of Anatomy, 246(2), 258-271. https://doi.org/10.1111/joa.14160

Sacroiliac joint auricular surface morphology modulates its mechanical environment

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