Feng Liu, Department of Orthpedics, Beijing Shijingshan Hospital, Beijing, China
Peng Su, Department of Orthpedics, Beijing Shijingshan Hospital, Beijing, China
Lichao Zhang, Department of Orthpedics, Beijing Shijingshan Hospital, Beijing, China
Yi Zhang, Department of Orthpedics, Beijing Shijingshan Hospital, Beijing, China
Ruyi Zhang, Department of Orthpedics, Beijing Shijingshan Hospital, Beijing, China
Objective: This study aimed to investigate the application of MIMICS software in measuring femoral neck fracture (FNF) parameters and its clinical significance. Method: Computed tomography data from 72 patients with FNFs were used to reconstruct three-dimensional (3D) models using MIMICS. The FNFs were divided into valgus and bowing groups based on the coronal femoral head-neck angle. A simulated sphere identified the center of the femoral head, and a 3D coordinate system was established. Statistical analyses were performed. Results: The valgus group showed more lateral x-axis and upward z-axis displacement (both p < 0.01). The medial x-axis and downward z-axis displacement distances were larger in the bowing group (both p < 0.01). Strong positive correlations were found between the horizontal head tilt angle and head spacing, spatial headneck angle and y-axis displacement distance (all rs > 0.89, p < 0.01). Conclusions: MIMICS-based FNF parameter measurement accurately describes spatial characteristics post-fracture, providing guidance for FNF treatment and evaluation.
Keywords: Femoral neck fracture. Parameter. Femoral head.