20.500.12556/RUL-137771 Analysis of the mechanical response of damaged human cervical spine ligaments Background: Cervical spine ligaments that protect the spinal cord and stabilize the spine are frequently injured in motor vehicle collisions and other traumatic situations. These injuries are usually incomplete, and often difficult to notice. The focus of the presented study is placed on analysis of the effect of subfailure load on the mechanical response of the three main cervical spine ligaments: the anterior and the posterior longitudinal ligament and the ligamentum flavum. Methods: A total of 115 samples of human cadaveric ligaments removed within 24–48 h after death have been tested. Uniaxial tension tests along the fiber direction were performed in physiological conditions on a custom designed test equipment. The ligaments were loaded into an expected damage zone at two different subfailure values (based on previously reported reference group of 46 samples), and then reloaded to failure. Findings: The main effect of a high subfailure load has proven to be the toe elongation change. The toe elongation increase is affected by the subfailure load value. While anterior and posterior longitudinal ligament showed similar changes, the smallest subfailure effect was found in ligamentum flavum. Interpretations: The normal physiological region of the cervical spine ligaments mechanical response is modified by a high subfailure load. The observed ligament injury significantly compromises ligament ability to give tensile support within physiological spinal motion. spine biomechanics cervical spine ligament injury subfailure cervical spine ligament biomehanika hrbtenice vratna hrbtenica ligament poškodba obremenitev v predelu poškodbe true false true Angleški jezik Slovenski jezik Članek v reviji 2022-06-30 10:39:14 2022-06-30 10:39:14 2022-09-15 04:15:47 0000-00-00 00:00:00 2020 0 0 9 str. Vol. 75, art. 105012 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 614.8:531:616.75+611.711(045) 0268-0033 10.1016/j.clinbiomech.2020.105012 14633987 1-s2.0-S0268003320301212-main.pdf 1-s2.0-S0268003320301212-main.pdf 1 5CFED8799C0271CE0B1997DD2E2724B2 b4c111c4a1ce3103d403381f8c98449f0a28f9a3a6ba3d2a66e85d4ff26d7dde 69b539e0-f851-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=157839 https://www.sciencedirect.com/science/article/pii/S0268003320301212 1 ea70decd-f84f-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=157838 Fakulteta za strojništvo Medicinska fakulteta 0 0 0