  The purpose of this study is to investigate the femoral neck angulation for
prediction of the complication associated with dynamic hip screw (DHS) surgery
and hip deformity. Three sample patients' MRI images were selected to calculate
the femoral neck angles. A total of six femur head geometries were
reconstructed and three dimensional (3D) models printed. The calculation of
neck angles was done in both computer models and 3D-printed models. Our results
showed that 3D-printed models achieved high accuracy and provided the physical
measurements, when compared to the computer models could not confirm. Neck
angulations related to uncomplicated DHS surgery ranged between
129{\deg}-139{\deg}, and non-deformity of normal neck angles ranged between
120{\deg}-135{\deg}. Our study indicated that patient-specific 3D printed
femoral head models provide useful information for medical education and assist
DHS surgery. Further research based on a large sample size is necessary.
