Radiological analysis of coronal angulation of femoral neck fracture

Abstract

Currently, the surgical treatment of femoral neck fracture is mainly artificial joint replacement and internal fixation. In clinical work, the author found that intraoperative and postoperative X-ray verification of anatomical fracture reduction and proper position of internal fixation in clinical cases of internal fixation surgery. However, through follow-up, unknown shortening of the femoral neck was found. Therefore, the concept and classification of femoral neck coronal angulation and related factors are proposed and verified. In the first part, 82 patients with femoral neck fractures treated by internal fixation in our hospital from January 2016 to January 2021 were retrospectively analyzed by deep learning. In the second part, the correlation between the coronal angulation and femoral neck shortening distance, Pauwels angle, and age were analyzed by statistical method. In the first part, through the average analysis of four groups of different coronal angulations, it was found that the shortening distance increased first and then decreased with the increase of coronal angulations. In the second part, it was found that there were significant differences among the data groups of shortening distance, coronal angulation, and Pauwels angle (P < 0.05). According to the scatter diagram of coronal angulation and Garden classification, there was no significant correlation between coronal angulation and Garden classification. The mean value of the coronal angulation when age <60 was much earlier than when age ≥60, but there was no statistical significance (P = 0.622 > 0.05). Femoral neck coronal angulation is verified, and the coronal angulation is correlated with the shortening distance and Pauwels angle.

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