Medical Science
Volume 24, Issue 104, July - August, 2020
“Modulus of rigidity” as a resistance criterion of the lower limb long bones in case of their traumatic injuries
Ivan Savka1♦, Svitlana Savka1, Viktor Sapielkin2, Vitalii Shcherbak2
1Department of Forensic Medicine and Medical Law, Higher State Educational Establishment of Ukraine “Bukovinian State Medical
University”, Chernivtsi, Ukraine
2Department of Forensic Medicine, Kharkiv Medical Academy of Postgraduate Education, Kharkiv, Ukraine
♦Corresponding author
Department of Forensic Medicine and Medical Law, Higher State Educational Establishment of Ukraine “Bukovinian State Medical
University”, Chernivtsi, Ukraine;
Email: savka.ivan@bsmu.edu.ua
ABSTRACT
The aim of the research was to determine the morphological signs participating in the formation of “modulus of rigidity” of the long
tubular bones and affect biochemical processes of their destruction in case of external traumatic impact. The study involved 128
injuries of the long tubular bones of the lower limb: femoral bone – 40 cases, tibia – 46, fibula – 42. Fractures of every bone were
assessed by the three thirds: proximal, middle and distal. Examination of morphological signs of the osseous tissue on the microlevel
was conducted on 576 specimens of the femoral bone, tibia and fibula (192 specimens of each), removed from dead males and
females aged from 24 to 70 (the control group). All the 29 morphological parameters of fracture area and 8 volumetric-massive
parameters of structural peculiarities of the examined bones were grouped into separate factors (modules). The following most
important morphological signs forming “modulus of rigidity”: the number of cracks (sphenoid from fracture, Х-У cracks, longitudinal
ones, and from the medullar canal from the site of compression), length of the biggest sphenoid crack, height of the biggest crest in
the fracture zone, number of teeth in the rupture zone, length of plastic deformity zone from the site of compression, and empirical
morphological sign – square of the medullar canal.
Keywords: Rigidity, Resistance, Morphological Signs
Medical Science, 2020, 24(104), 2025-2031
