The zygomatic arch (ZA) is a long, slender and laterally protruding structure of the face that is vulnerable to fracture by various types of trauma. Knowledge of the topographic anatomy of the ZA and temporal fossa is important for appropriate management of ZA problems. Thirty-seven male and 33 female cadavers were investigated in this study. Skin, subcutaneous tissue, fascia and periosteum were completely removed from around the ZA. Several depths and distances were measured based on three landmarks on the ZA: the anterior, middle and posterior portions of its superior margin. The thickness of the ZA was relatively constant in the three portions. The distance from the internal surface of the ZA to the surface of the temporalis muscle was similar in the anterior and middle portions, at about 8 mm, and slightly lesser in the posterior portion. The distance from the external surface of the ZA to the temporal bone was the greatest at the anterior portion, and there was a large difference between the anterior and middle portions. The temporalis muscle was the thickest in the anterior portion and the thinnest in the posterior portion. This study suggests that the maximum distance from the internal surface of the ZA to the surface of the temporalis muscle is 8 mm, and this should be considered when performing reduction malarplasty on the ZA.
|Number of pages||4|
|Journal||Journal of Plastic, Reconstructive and Aesthetic Surgery|
|Publication status||Published - 2009 Nov|
Bibliographical noteFunding Information:
We thank the Catholic Institution for Applied Anatomy, College of Medicine, The Catholic University of Korea for allowing us to use the cadavers, and Mr. Kwan-Hyun Youn for drawing the schematic. This work was supported by the second phase of the Brain Korea 21 Project.
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