Ideal Configuration Distribution of Femoral Neck Cannulated Screw in High Altitude Population: A Finite Element Study

Figure 1

(a) The threshold growth command (region growing) was used to separate the femur, and then the three-dimensional model of the separated femur was reconstructed to obtain the three-dimensional model. (b) This line is the central axis of the femoral neck. (c) The conversion command (translate) was used to generate multiple parallel planes in the femoral neck section with a 2 mm interval as the cutting surface, and the cut command (cut) was used to cut the femoral neck with a thickness of 2 mm. (d) The intersection of the two plane boundaries is taken as point A on the anterior upper side, point B is a point on the posterior upper side, which is higher than the rearmost cortex, and point C is the lowermost point, which is close to the lowermost cortex. Use these three points to make a triangle, and cross points A and B to make a horizontal line and a vertical line, respectively. The angle between line AB and the horizontal line was Angle a.

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