Zhang Zhiyong, Zhang Yi, He Yang, An Jinggang, Zwahlen Roger Arthur
Outpatient Dental Center, Peking University School of Stomatology, Beijing, Peoples' Republic of China.
J Oral Maxillofac Surg. 2012 Jan;70(1):68-73. doi: 10.1016/j.joms.2011.02.036. Epub 2011 Jun 12.
To analyze the correlation between the volume of herniated orbital contents and the amount of enophthalmos in orbital floor and wall fractures.
Patients with secondary enophthalmos due to unilateral orbital floor and wall fractures were recruited. Computed tomography-assisted measurements of both orbits as well as of the amount of enophthalmos were performed. The following volumes were calculated: 1) the overall volume of both the healthy and fractured orbit, 2) the volume of herniated orbital contents at the orbital walls, 3) the volume of herniated orbital contents anterior and posterior to the vertical eyeball equator. The amount of enophthalmos was also measured by computed tomography. Multifactor linear regression analysis was performed to obtain correlations between the amount of enophthalmos and the measured volumes.
Twenty-three patients were included. The average enophthalmos was 4.0 mm (SD = 1.49). Although correlation between volume differences of healthy and fractured sides was not statistically significant, the overall volume of the herniated orbital contents was significantly correlated (P < .05) with the amount of enophthalmos. Regarding the specific orbital sites of herniation, the orbital floor was detected to be most significantly correlated to the amount of enophthalmos (P < .05), although only the herniation posterior to the vertical eyeball equator.
The overall volume of herniated orbital contents correlated significantly with the amount of enophthalmos. The orbital floor was detected to be the site most significantly correlated with the amount of enophthalmos (although only if herniation occurred posterior to the vertical eyeball equator). Only the volume of herniated soft tissues posterior to the eyeball equator showed correlation with the amount of enophthalmos.
分析眶内容物疝出量与眶底及眶壁骨折所致眼球内陷程度之间的相关性。
招募因单侧眶底及眶壁骨折导致继发性眼球内陷的患者。采用计算机断层扫描辅助测量双侧眼眶以及眼球内陷程度。计算以下体积：1）健康侧和骨折侧眼眶的总体积；2）眶壁处眶内容物疝出的体积；3）眼球垂直赤道前后的眶内容物疝出体积。眼球内陷程度也通过计算机断层扫描进行测量。进行多因素线性回归分析以获得眼球内陷程度与所测体积之间的相关性。
纳入23例患者。平均眼球内陷为4.0毫米（标准差 = 1.49）。尽管健康侧与骨折侧的体积差异之间的相关性无统计学意义，但眶内容物疝出的总体积与眼球内陷程度显著相关（P < .05）。关于疝出的具体眶部位置，尽管仅在眼球垂直赤道后方出现疝出，但眶底被检测出与眼球内陷程度最显著相关（P < .05）。
眶内容物疝出的总体积与眼球内陷程度显著相关。眶底被检测出是与眼球内陷程度最显著相关的部位（尽管仅在眼球垂直赤道后方出现疝出时）。仅眼球赤道后方疝出的软组织体积与眼球内陷程度显示出相关性。
