THE STUDY OF BIOMECHANICAL PROPERTIES OF HUMAN TENDONS AND XENOPERIKARD

Sivakon Stanislav Vladimirovich, Doctor of medical sciences, associate professor, head of sub-department of traumatology, orthopedics and extreme military medicine, Medical Institute, Penza State University, sivakon@mail.ru
Mitroshin Alexander Nikolaevich, Doctor of medical sciences, professor, head of sub-department of surgery, Medical Institute, Penza State University, an-mitroshin@ mail.ru
Kislov Alexander Ivanovich, Doctor of medical sciences, professor, rector of the Penza Institute of Advanced Medical Studies, giuv@sura.ru
Abdullaev Arslan Kudratovich, Senior lecturer, sub-department of traumatology, orthopedics and extreme military medicine, Medical Institute, Penza State University, dr_aslan@mail.ru
Sretensky Sergey Vladimirovich, Postgraduate student, Penza State University, ssv_84@ mail.ru
Golyadkina Anastasiya Alexandrovna, Head of department of biomechanics, Academic and Research Institute of Nanostructures and biosystems, Saratov State Univertsity named after N. G. Chernyshevsky, GramakovaAA@info.sgu.ru
Shchukina Olga Alexandrovna, Engineer, department of biomechanics, Academic and Research Institute of Nanostructures and biosystems, Saratov State Univertsity named after N. G. Chernyshevsky, Biometsgu@mail.ru
Sivakon Artyom Stanislavovich, Student, Medical Institute, Penza State University, sivakon@mail.ru

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The authors have studied the mechanical strength of cadaveric flexor tendons of fingers and xenopericardium on discontinuous machines INSTRON-3342 and INSTRON-5944 BIO PULS to ascertain the possibility of using xenopericardium for plastic tendons. The researchers investigated the tensile strength, ultimate strength, elongation, Young's modulus of elasticity. The samples of xenopericardium showed much greater strength and stiffness than the tendon specimens. Breaking strength of samples was 5 times greater, the tensile strength - 7.5 times, the elongation - 1.3 times, Young's modulus – 3 times. During the comparison of loads arising from the eruption suture, the samples of xenopericardium also proved to be much stronger. Breaking load was 4 times greater, the tensile strength - 4.5 times, the elongation - 1.3 times, Young's modulus of elasticity - more than 3 times.

mechanical properties of tendons, the Young's modulus.