ISSN 1301 - 0883 / E-ISSN 1309 - 3886
 
 








  An overview of Superficial Musculo-Aponeurotic System; Anatomic and Radiologic Approach [Eastern J Med]
Eastern J Med. 2020; 25(1): 68-72 | DOI: 10.5505/ejm.2020.72692  

An overview of Superficial Musculo-Aponeurotic System; Anatomic and Radiologic Approach

Selma Çalışkan1, Emre Can Celebioglu2, Sinem Akkasoglu1, Ibrahim Tanzer Sancak3
1Department of Anatomy, Faculty of Medicine, Ankara Yıldırım Beyazıt University, Ankara, Turkey
2Department of Radiology, Faculty of Medicine, Ankara University, Ankara, Turkey
3Department of Radiology, Faculty of Medicine, Tobb University, Ankara, Turkey

INTRODUCTION: Superficial musculo aponeurotic system(SMAS) is a network of collagen fibers, elastic fibers and fat interconnecting facial muscles and dermis. Subcutaneous morphology of face is more organized than subcutaneous layer of any part of body. SMAS has distinctive features in forehead, parotid region, zygomatic region, temporal region, cheek, infraorbital region, nasolabial fold, and lower lip. Because SMAS is a key feature for either percutaneous and surgical aesthetic interventions, neurovascular structure embedded in this tissue must be well known.
METHODS: Radiologic views were enrolled from the archive system of radiology department. Random selected images of 50 patients (29 male, 21 female) who underwent MR imaging for any reason were analyzed by the same radiologist who also has PhD degree in anatomy.
RESULTS: Thickness of SMAS for each region was measured. Continuity of the tissue was followed between the junctions of the regions in a proper sequence with MR images. Thickness of SMAS in the zygomatic region was measured in 50 patients and mean value was 0.12 mm. Left and right side measures were compared between genders and no statistical difference between gender groups was found. Correlation between measures and age was analyzed statistically and no correlation was found.
DISCUSSION AND CONCLUSION: A radiologically and clinically neglected tissue: SMAS deserves more attention because of its continuous course interconnecting distinct regions of face and acting as a functional unit for the expressions. Age and gender related changes in SMAS morphology studied in healthy individuals by means of radiology provides an important contribution to the literature.

Keywords: SMAS, aesthetic medicine, SMAS-platysma face lift surgery, radiologic anatomy


Selma Çalışkan, Emre Can Celebioglu, Sinem Akkasoglu, Ibrahim Tanzer Sancak. An overview of Superficial Musculo-Aponeurotic System; Anatomic and Radiologic Approach. Eastern J Med. 2020; 25(1): 68-72

Corresponding Author: Selma Çalışkan, Türkiye


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