筛额角：鼻窦手术中一个新的解剖学和放射学标志。

The ethmo-frontal angle: a new anatomic and radiologic landmark for use in sinus surgery.

作者信息

Becker Samuel S, Beddow Peter A, Duncavage James A

机构信息

Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.

出版信息

Otolaryngol Head Neck Surg. 2009 May;140(5):762-3. doi: 10.1016/j.otohns.2008.12.043. Epub 2009 Mar 9.

DOI:10.1016/j.otohns.2008.12.043

PMID:19393426

Abstract

OBJECTIVE

To identify anatomic and radiologic landmarks to assist with frontal sinus surgery.

STUDY DESIGN

Retrospective review.

SUBJECTS AND METHODS

Sinus CT scans of 50 patients were evaluated with respect to a new radiologic and anatomic landmark, the ethmo-frontal angle (EFA).

RESULTS

Right-sided EFA ranged from 135 to 171 degrees. Left-sided EFA ranged from 136 to 167 degrees. Measurements of both sides displayed a normal distribution. When right and left sides within individuals were compared, there was no correlation to indicate a high degree of variation between any particular patient's right and left side EFA.

CONCLUSION

The EFA is a new landmark to assist otolaryngologists during surgery on and around the frontal sinus. Normal values for this angle have been presented. Surgeons should be aware that asymmetry in a patient's EFA is common, and each side should be examined individually.

摘要