Lateral Femoral Bowing and the Location of Atypical Femoral Fractures.
Lateral Femoral Bowing and the Location of Atypical Femoral Fractures.
复制标题
DOI：
10.5371/hp.2017.29.2.127
复制
发表时间：
2017-06
期刊：
影响因子：
--
通讯作者：
Ha S
中科院分区：
文献类型：
--
作者：
Yoo H;Cho Y;Park Y;Ha S
非典型股骨骨折(AFF)发生在两个不同的部位，粗隆下和骨干。本研究的目的是探讨股骨外侧弯角度与AFF位置的关系。这项研究包括2010年1月至2015年12月期间接受手术治疗的45名患者的56例病例。对于骨干和粗隆下AFF，我们评估了解剖位置与股骨外侧弯曲角度之间的关系。由两名骨科医生测量股骨外侧屈曲角度，并取两个校准器的平均值进行统计学分析。其他变量如年龄、身高、体重、身体质量指数和骨密度也被评估。我们还根据原始数据计算了骨折位置的分界值。股骨干组股骨外侧弯角度为10.10°±3.79°(3°~19°)，股骨粗隆下组为3.33°±2.45°(1.5°~11°)。Logistic回归分析显示股外侧弯角度有统计学意义。根据受试者的工作特性曲线，骨折位置的分界值为5.25°。换言之，股骨外侧弯角度大于5.25°时，股骨干骨折更易发生。股骨外侧屈曲角度与AFF的位置有关，股骨外侧屈曲角度的分界值为5.25°。
Atypical femoral fractures (AFFs) occur in two distinct part, subtrochanter and diaphysis. The aim of this study was to investigate the relationship between the lateral femoral bowing angle and the location of AFF. This study included a total of 56 cases in 45 patients who underwent surgical treatment between January 2010 and December 2015. For the diaphyseal and subtrochanteric AFFs, we evaluated the relationship between the anatomic location and lateral femoral bowing angle. Lateral femoral bowing angle was measured by two orthopaedic surgeons and average value of two calibrators was used in statistic analysis. Other variables like age, height, weight, body mass index and bone mineral density were also evaluated. We also calculated the cutoff value for the location of the fractures from the raw data. The average lateral femoral bowing angle was 10.10°±3.79° (3°-19°) in diaphyseal group and 3.33°±2.45° (1.5°-11°) in subtrochanter group. Lateral femoral bowing angle was statistically significant in logistic regression analysis. According to the receiver operating characteristic curve, cutoff value for the location of the fracture was 5.25°. In other words, the femoral diaphyseal fractures are more frequent if the lateral femoral bowing angle is greater than 5.25°. The lateral femoral bowing angle is associated with the location of the AFFs and the cutoff value of lateral femoral bowing angle was 5.25°.