2D geometric model of the human femoral neck in frontal projection

In modern society, life expectancy is steadily increasing, at the same time, number of medial femoral fractures increasing. The bone-beam system proximal epiphysis femur has areas different density throughout, however, these differences are most clearly observed in neck. aim stidy was to build a two-dimensional parametric model human neck study its bone and beam structure. Material methods. carried out on 50 macerated femurs 10 radiographs hip joints from collection department anatomy I.P. Pavlov Ryazan State Medical University. All bones were without signs pathology had no growth zones. Age gender determination not performed. material photographed frontal projection, then photographs transferred personal computer measurements taken Autodesk AutoCAD LT 2012 Commercial New SLM ML03 program. Using mathematical model, divided into three figures: "head–neck", "true neck", "neck–trochanteric region". We also measured angles beginning increase diameter neck: head (angles α1 α2); trochanteric region β1 β2), angle γ, which characterizes direction bundles arch femur, separately identified. Results. “true neck” perimeter area 213.23 [194.31; 250.51] mm2, occupies 20% structure integral figure, parameters “neck–head” “neck–trochanteric region” perimeters 355.47 [ 321.47; 420.57] mm2 – 33% 511.65 [447.11; 583.19] 47%, respectively. median values 34.24 [29.38; 40.45]°, α2 27.27 [22.30; 31.48] °, γ 51.32[46.71; 55.39]°, while β2 39.95 [35.39;42.93]° 28.65 [25.70; 31.61] ° Conclusion. proposed with division figures makes it possible mathematically evaluate position, direction, distribution structures epiphysis.