Volume 129, Issue 5 pp. 1030-1034
Allergy/Rhinology

The Relationships Between the Nasolacrimal Duct and the Anterior Wall of the Maxillary Sinus

Xiangdong Wang MD, PhD

Corresponding Author

Xiangdong Wang MD, PhD

Department of Otolaryngology–Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China

Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China

Authors x.w., x.c., and l.z. contributed equally to the study.

Send correspondence to Luo Zhang, MD, Xiangdong Wang, MD, Beijing Institute of Otolaryngology, No. 17, HouGouHuTong, DongCheng District, Beijing, 100005, China. E-mail: [email protected], [email protected]Search for more papers by this author
Xinjun Chen MM

Xinjun Chen MM

Department of Otolaryngology–Head and Neck Surgery, Beijing Mentougou Hospital, Beijing, China

This work was supported by the Program for Changjiang Scholars and Innovative Research Team (IRT13082), the National Natural Science Foundation for the Major International Joint Research Program (81420108009), the National Natural Science Foundation (81630023, 81100704, 81441029, 81441031 and 81570894), the Capital Health Research and Development Program (2011-1017-06), the Beijing Health Bureau Program for High Level Talents (2009-2-007, 2011-3-039, 2011-3-043 and 2014-3-018), the Beijing Municipal Administration of Hospitals' Mission Plan (SML20150203), Beijing Natural Science Foundation (7172054), the Beijing Science and Technology Talent Program (xxjc201712), and the Beijing Scientific and Technological Overall Plan (Z171100000117002).

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Ming Zheng MD, PhD

Ming Zheng MD, PhD

Department of Otolaryngology–Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China

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Chengyao Liu MD, PhD

Chengyao Liu MD, PhD

Department of Otolaryngology–Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China

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Chengshuo Wang MD, PhD

Chengshuo Wang MD, PhD

Department of Otolaryngology–Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China

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Luo Zhang MD, PhD

Corresponding Author

Luo Zhang MD, PhD

Department of Otolaryngology–Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China

Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China

The authors have no other funding, financial relationships, or conflicts of interest to disclose.

Send correspondence to Luo Zhang, MD, Xiangdong Wang, MD, Beijing Institute of Otolaryngology, No. 17, HouGouHuTong, DongCheng District, Beijing, 100005, China. E-mail: [email protected], [email protected]Search for more papers by this author
First published: 10 August 2018
Citations: 14

Editor's Note: This Manuscript was accepted for publication on June 07, 2018

Abstract

Objectives/Hypothesis

To examine the anatomic relationships between the lower end opening into the inferior meatus of the bony nasolacrimal duct (NLD) and the anterior wall of the maxillary sinus.

Study Design

Anatomical investigation.

Methods

A total of 206 individuals were recruited for detailed anatomic investigation of the lower end of the bony NLD and their relation to the anterior wall of the maxillary sinus by high-resolution computed tomography (HRCT) imaging. The observed features were classified as either a fusion type or separation type, according to the HRCT images. Additionally, the angle between the anterior and medial wall of the maxillary sinus was classified as either an anterior mode or lateral mode.

Results

The NLD anatomical fusion type was found in 40.05% and the separation type in 59.95% of the HRCT imaging scans available. The anterior mode of angle between the anterior and medial wall of the maxillary sinus was present in 64.1% of the images, and the lateral mode in 35.9% of the images. In 165 cases of anatomical fusion, the anterior mode of angle was present in 15.8% and the lateral mode in 84.2% of cases. In 247 cases of anatomical separation, the anterior mode was present in 97.2% and the lateral mode in 2.8% of cases.

Conclusions

The surgical anatomy of the lower end of the bony NLD and anterior wall of the maxillary sinus displays varied relationships. Preoperative use of HRCT and an awareness of the particular type of anatomical feature present are likely to aid in planning and performing successful endoscopic medial maxillectomy.

Level of Evidence

4 Laryngoscope, 129:1030–1034, 2019

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