Sabalić, Srećko and Kodvanj, Janoš and Pavić, Andrej (2013) Comparative study of three models of extra-articular distal humerus fracture osteosynthesis using the finite element method on an osteoporotic computational model. = Comparative study of three models of extra-articular distal humerus fracture osteosynthesis using the finite element method on an osteoporotic computational model. Injury, 44 (SUPPL.). S56-S61. ISSN 0020-1383. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2013). Točan broj autora: 3.
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Abstract
Introduction The biomechanical properties of extra-articular fractures of the distal humerus have not been researched sufficiently. The aim of the study was to examine three different models of osteosynthesis for extra-articular distal humerus fractures. Osteosynthesis with two parallel or perpendicular plates is a common method of osteosynthesis for those fractures. We wanted to examine the biomechanical performance of a newly designed Y plate, and compare it to the previously used osteosynthesis methods. Materials and methods On an osteoporotic computational model of the distal humerus, a 10 mm gap was made, 25 mm above the olecranon fossa, and osteosynthesis was performed with the newly designed Y-shaped plate and with 3.5 reconstruction plates in parallel and perpendicular configuration. The numerical simulations in axial compression, bending and varus loading were conducted using the finite element method. Results On all models the largest displacements in the area of the fracture gap appear around the lower anterior edge. The parallel plate construct had the highest stiffness among the three plating techniques in axial compression. In bending and varus loading the construct with the newly designed plate had the highest stiffness, but in axial compression demonstrated the lowest. The parallel plate configurations had higher stiffness than the perpendicular ones in all three loading directions and the difference is most pronounced in axial compression. Conclusion The displacements that appeared in all three plating systems are minimal and within the limits that meet the requirements of sufficient biomechanical stability in the usual time for the healing of fractures in that region. The newly designed Y-shaped plate for extra-articular fractures of the distal humerus is a possible alternative to the usual method of osteosynthesis with two plates in the case of an extra-articular fracture of the distal humerus. Further biomechanical studies are needed for a decisive conclusion.
| Item Type: | Article (["eprint_fieldopt_article_type_article" not defined]) |
|---|---|
| Keywords (Croatian): | article; axial compression; biological model; biomechanics; bone plate; comparative study; controlled study; extra articular distal humerus fracture; finite element analysis; fracture healing; humerus; humerus fracture; mathematical model; musculoskeletal procedure; olecranon; osteoporosis; osteoporotic computational model; osteosynthesis; priority journal; rigidity; simulation; y shaped plate; biomechanics; computer simulation; devices; human; Humeral Fractures; osteosynthesis; procedures; Biomechanical Phenomena; Bone Plates; Computer Simulation; Finite Element Analysis; Fracture Fixation; Internal; Humans; Humeral Fractures |
| Subjects: | TECHNICAL SCIENCE > Mechanical Engineering BIOMEDICINE AND HEALTH > Basic medical sciences |
| Divisions: | 200 Department of Engineering Mechanics > 220 Chair of Experimental Mechanics |
| Indexed in Web of Science: | Yes |
| Indexed in Current Contents: | Yes |
| Quartiles: | Q1 (2013) |
| Date Deposited: | 07 May 2015 12:56 |
| Last Modified: | 23 Nov 2016 10:30 |
| URI: | http://repozitorij.fsb.hr/id/eprint/4024 |
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