Department of Ophthalmology, CHA University, Bundang CHA Medical Center, Seongnam, Korea.
Ophthalmic Res. 2012;47(1):1-6. doi: 10.1159/000326894. Epub 2011 Jun 21.
To compare inferior orbital wall morphology between isolated inferior and medial orbital wall fracture patients.
The morphologic properties of patients with isolated blow-out fractures involving the medial wall or inferior wall treated from August 2004 to August 2009 were reviewed. The cross-sectional area, thickness, gradient, and curvature of the inferior wall were measured via orbital CT in the opposite non-traumatized eye.
Patients with isolated inferior wall fractures (n = 77) and isolated medial wall fractures (n = 78) evidenced no differences in sex, age, etiology of trauma, laterality of trauma, and associated concomitant intraocular injuries. The cross-sectional area, thickness, and gradient of the inferior wall did not differ significantly between the 2 groups. However, the coefficient of curvature was significantly greater in patients with inferior wall fracture than in patients with medial wall fracture (0.016 ± 0.006 vs. 0.006 ± 0.002, respectively; p = 0.000).
Patients with more convex and steep inferior walls are more likely to incur isolated inferior wall fractures than isolated medial wall fractures.
比较单纯眶下壁骨折与单纯眶内侧壁骨折患者的眶下壁形态差异。
回顾分析 2004 年 8 月至 2009 年 8 月收治的单纯眶下壁爆裂性骨折和单纯眶内侧壁骨折患者的形态学特征。采用眼眶 CT 测量对侧未受伤眼的眶下壁横截面积、厚度、斜率和曲率。
单纯眶下壁骨折患者（77 例）和单纯眶内侧壁骨折患者（78 例）在性别、年龄、创伤病因、创伤侧别和伴发眼内损伤方面差异无统计学意义。两组患者的眶下壁横截面积、厚度和斜率差异无统计学意义。但是，眶下壁曲率系数在单纯眶下壁骨折患者中显著大于单纯眶内侧壁骨折患者（分别为 0.016 ± 0.006 比 0.006 ± 0.002；p = 0.000）。
眶下壁更凸且更陡的患者更易发生单纯眶下壁骨折，而不是单纯眶内侧壁骨折。
