Surgical and topographic anatomy of the maxillary line: An important landmark for endoscopic nasal surgery
| Autor: | Amy Kathleen Morrison, Athanasios Raikos, Pasan Waidyasekara |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Male
Nasal cavity Nasal Surgical Procedures Lacrimal apparatus Cadaver medicine Humans Endoscopic nasal surgery Aged Aged 80 and over Landmark Nasolacrimal duct business.industry Endoscopy General Medicine Anatomy Middle Aged medicine.anatomical_structure Nasolacrimal canal Female Nasal Cavity Line (text file) business Cadaveric spasm Nasolacrimal Duct Developmental Biology |
| Zdroj: | Annals of Anatomy - Anatomischer Anzeiger. 197:24-28 |
| ISSN: | 0940-9602 |
| DOI: | 10.1016/j.aanat.2014.10.009 |
| Popis: | The maxillary line is an important surgical landmark in the lateral nasal cavity. We investigated its location, variation, and relation to other landmarks in 47 formalin fixed cadaveric half-heads dissected in steps. Measurements and observations were made to describe the topography of the maxillary line, maxillary line midpoint (M-point), and their relationship with surgically important structures. The mean curved length of the maxillary line was 15 mm (SD 3.5) and can be classified into three types. The M-point had a mean vertical distance of 0.8mm (SD 2.9) below the nasolacrimal sac-duct junction. It was found below, above, or on the same level as the nasolacrimal sac-duct junction in 57.4%, 38.3%, and 4.3% of specimens, respectively. In 51.1% the M-point was anterior to the nasolacrimal duct axis and 48.9% overlapping the lacrimal apparatus. The maxillary line and its M-point are useful surgical landmarks for localizing the nasolacrimal duct segments. |
| Databáze: | OpenAIRE |
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