Stress-strain state of fibrin-blood clot and periosteum in the area of diaphyseal fracture under different conditions of fracture fragments fixation and its impact on the structural organization of regenerate

Journal Title: Orthopaedics, Traumatology and Prosthetics - Year 2016, Vol 602, Issue 1

Abstract

The goal: using mathematical finite-element modeling to calculate the stress-strain state (SSS) of fibrin-blood clot and periosteum around the fracture zone in the conditions of fixation of femur fragments with on-bone plate, intramedullary locking nail and ExFix. The methods: the model represents two fragments of femur with transverse fracture plane joined with spindly fibrin-blood clot enclosed in periosteum and devices mentioned above. The existing data on the Young's modulus and Poisson's ratio of all components of the model were used. The calculations of SSS of clot and periosteum were performed under axial load of 800 N on femur and transverse load of 200 N on the distal femur. The control points on the horizontal section of clot and periosteum were selected for a quantitative comparison of the voltage in various conditions of fragments fixation. Moreover, the area covered by the maximum stress level was compared. The results: The following patterns were revealed. At the same axial load of model the lowest level of stress in periosteal-fibrin spindle was observed when fragments were fixed with intra­medullary locking nail, a little more — with plate, and the biggest one — with ExFix. The ratio of the stress values was 1: 2: 3–4.At the same transverse load of model the lowest level of stress in periosteal-fibrin spindle was observed when fragments were fixed with plate, a little more – with intramedullary locking nail, and the biggest one — with ExFix. The ratio of the stress values was 1: 6: 10–12.The greatest difference in stress levels was noticed in the conditions of transverse load on the segment. Conclusion: The presented data on SSS in tissues around the fracture zone explain the origin of sizes, shapes and structures of periosteal bone regenerate in the treatment of diaphyseal fractures with devices with different modes of mobility of bone fragments

Authors and Affiliations

Valeriy Litvishko, Olexii Popsuishapka, Oleksandr Yaresko

Keywords

Related Articles

MORPHOLOGICAL FEATURES STATE OF THE BLOOD SUPPLY AND TISSUE VIABILITY IN FEMORAL AND TIBIAL BONES DURING TOURNIQUET LIMB ISCHEMIA AND RECIRCULATION PERIOD

Detailed studies of histopathological changes and the state of blood supply to the tissues of the limb has not been studied yet. Application with following removing the tourniquet had not been carried out. It remains unc...

Peculiarities of gunshot wound treatment of the wrist in modern conditions [Особенности лечения огнестрельных ранений кисти в современных условиях]

The analysis of injuries as a result of military conflicts shows that gunshot wounds are 9–25 %. Objective: to find out the peculiarities of the gunshot wound treatment of the wrist at the stages of medical evacuation o...

The indexes of osteogenic stem cells activity in patients with rheumatoid arthritis and frontal knee deformities

Objective: to study the indexes of stem cells activity of bone marrow which form knee joint (lateral and medial parts of distal femur and proximal tibia part) which were cut at arthroplasty surgery in patients with rheum...

Differentiation mechanisms of regeneration blastema cells during bone fracture healing

For understanding of reasons of bone nonunion after fractures we have to study the mechanisms which are on the base of cells differentiation. Objective: on the base of clinical and morphologic examination we studied the...

Download PDF file
  • EP ID EP203530
  • DOI 10.15674/0030-59872016162-71
  • Views 235
  • Downloads 0

How To Cite

Valeriy Litvishko, Olexii Popsuishapka, Oleksandr Yaresko (2016). Stress-strain state of fibrin-blood clot and periosteum in the area of diaphyseal fracture under different conditions of fracture fragments fixation and its impact on the structural organization of regenerate. Orthopaedics, Traumatology and Prosthetics, 602(1), 62-71. https://europub.co.uk/articles/-A-203530