ISSN 2564-7784 | E-ISSN 2564-7040
Original Article
1 Department of Biophysics of Medicine Faculty, Harran University, Şanlıurfa, Turkey  
2 Department of Anatomy of Medicine Faculty, SANKO University, Gaziantep, Turkey  
3 Physic department of Science Faculty, Harran University, Şanlıurfa, Turkey  
Eur J Ther ; : -
DOI: 10.5152/EurJTher.2019.18016
Key Words: Vertebral bone, Residual stress, Nano-cracks, Deformation

Objective: Residual stress can cause deformation and cracks in bone tissue. The aim of our study is to measure the residual stress level and distrubition in the cortical bone of the extremities of vertebrates.


Methods: Residual stress levels in the bone tissue of 12 sheeps in 2-year-old were measured on cortical part of six different (C1, C3, Th1, Th 13 L1 and L6) vertebral bones by means of the X-ray diffraction method. This method is recognized as the one that can measure residual stress in bone tissue most accurately. By means of special methods, cortical part of vertebral bone was separated from its trabecular part. The bone tissue was left to stand for a long time to dry completely. Measurements were performed on completely dried tissues using the X-ray diffraction apparatus. Residual stress values that were obtained from all groups were compared statistically.


Results: It was found that residual stress level is the highest in C3 and shows significant change statistically compared with the levels in C7, Th1 and Th13. Although the level in C3 was high compared with the levels in L1 and L6, it was not statistically significant.


Conclusion: Residual stress level in C3 vertebral cortical section was significantly higher than other parts and we interpreted it like this. It is anatomically a vertebra that keeps the head upright and is the most loaded vertebra in natural processes.

Key Words
AVES | Copyright © 2019 European Journal of Therapeutics | Latest Update: 18.09.2019