Cheng Andy C O, Yuen Hunter K L, Lucas Peter W, Lam Dennis S C, So Kwok Fai
Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong Special Administrative Region.
Ophthalmic Plast Reconstr Surg. 2006 May-Jun;22(3):209-13. doi: 10.1097/01.iop.0000217795.30085.7a.
To elucidate the characteristics and location of the supraorbital and frontal exits of the supraorbital nerve in Chinese skulls and to compare these findings with other ethnic populations.
The anatomy of the supraorbital nerve exits was studied in 97 adult Chinese skulls (194 orbits). The characteristics and location of the supraorbital nerve exits were determined. Analyses were performed to compare differences between sexes and sides. Data were then compared with those of the other populations.
Supraorbital exits were found in all 194 orbits. Among these, 89 (45.9%) were foramina. Frontal exits were found in 69 of the 194 (35.6%) orbits in which 18 were foramina (9.3%). The location of the supraorbital exits showed a skewed distribution toward the medial aspect of the superior orbital rim. The median distance between the supraorbital exits and the facial midline was 24.56 mm. Eighty percent of the supraorbital exits lay between 20.77 mm and 30.52 mm from the facial midline. The mean frontal exit was 7.02 mm medial to the supraorbital exits. Compared with other populations, a higher proportion of Chinese have foramina above the superior orbital rim as the exits for the supraorbital neurovascular bundle. The location of the supraorbital nerve exit is highly variable in all studied populations.
In a significant proportion of Chinese, the supraorbital nerve exits are located toward the medial aspect of and above the superior orbital rim. Extra care should be taken during dissection around this region to avoid damage to the supraorbital nerve.
阐明眶上神经在国人颅骨上的眶上和额部出口的特征及位置，并将这些发现与其他种族人群进行比较。
对97例成年国人颅骨（194侧眼眶）的眶上神经出口进行解剖学研究。确定眶上神经出口的特征和位置。进行分析以比较性别和左右侧之间的差异。然后将数据与其他人群的数据进行比较。
在所有194侧眼眶中均发现眶上出口。其中，89个（45.9%）为孔。在194侧眼眶中的69个（35.6%）发现额部出口，其中18个为孔（9.3%）。眶上出口的位置呈偏向眶上缘内侧的分布。眶上出口与面部中线之间的中位数距离为24.56mm。80%的眶上出口位于距面部中线20.77mm至30.52mm之间。额部出口平均位于眶上出口内侧7.02mm处。与其他人群相比，国人中眶上缘上方作为眶上神经血管束出口的孔的比例更高。在所有研究人群中，眶上神经出口的位置高度可变。
在相当比例的国人中，眶上神经出口位于眶上缘内侧及上方。在该区域周围进行解剖时应格外小心，以避免损伤眶上神经。
