Forensic characteristics of fissures as valuable morphological signs to detect mechanogenesis of fractures of long bones in the lower limbs

The objective of our work is to study regularities of formation and spread of cracks of long bone diaphysis in the lower limbs for more profound understanding of biomechanics of fractures. The material of the study was 128 cases with injuries of the femoral, tibia and fibula bones. The data obtained were statistically processed by means of multifactor analysis of variance (MANOVA). Different kinds of cracks were found to possess their own signs by the number and direction reflecting mechanics of fractures of the examined bones. The value of deviation angle of wedge-shaped cracks was found to be of a special diagnostic importance. Detected regularities can be used in forensic medicine practical work in case of retrospective renewal of conditions and circumstances of getting injuries. Objective: to formulate new regularities in the process of formation and spread of diaphysis cracks of long tubular bones in the lower limbs for more comprehensive understanding of biomechanics of their fractures. Materials and methods. The material of the study was based on the expert investigations including 82 persons with 128 injuries of the lower limbs: femoral bones – 40 cases, tibia – 46 cases, fibula – 42 cases. The data obtained were statistically processed by means of multifactor analysis of variance (MANOVA). Conclusions: Different kinds of cracks have their own signs by the number and direction reflecting mechanics of fracture of certain portions in the long tubular bones of the lower limb. Cracks in the rupture area are of more importance to detect the mechanism of The value of deviation angle of wedge- shaped cracks is of a special diagnostic importance. Prospects of further studies. Prospects of further studies assume computed multi-dimensional visualization of crack characteristics of different bones of the human skeleton.