Analytical, Stochastic and Experimental Solution of the Osteosynthesis of the Fifth Metatarsal by Headless Screw

This paper evaluates the various approaches to strength and stiffness analysis of fracture osteosynthesis using a headless Herbert screw. The problem has been extensively addressed several scientific approaches, namely analytical approach, stochastic experimental (marginally) finite elements method. is illustrated on use prototype screw Ti: 4.0/1.4 × 30/7 (manufacturer: Medin, Czech Republic) surgical treatment fifth metatarsal fracture. Mathematical equations for calculation maximum stresses in were established tensile/compression loading. also interesting because its static indetermination tension compression; this reason, it was necessary deformation condition, i.e., relationship between extension bone contraction. (probabilistic) application Monte Carlo method, takes advantage mathematical derived during solution by respecting natural variabilities uncertainties. validated measurements porcine bones element data measured experimentally processed used deriving an equation, appropriately approximating data. main part measurement determine axial force generated with obtained compressional maximal stress bone. Finally, methods compared. In paper, comprehensive original based authors’ experience multiple are presented. Obtained results designers optimalization implants useful surgeons developing new techniques. biomechanical solved cooperation engineering industry physicians improve quality care patients trauma orthopedics surgery.