Periorbital Rekontrüksiyon
Özet
Periorbital rekonstrüksiyon, göz ve çevresindeki yapıların fonksiyonel ve estetik bütünlüğünü sağlamayı amaçlayan, anatomik karmaşıklığı nedeniyle cerrahlar için oldukça zorlayıcı ve titizlik gerektiren bir alandır. Göz kapakları gözleri koruma görevi üstlenirken, kaşlar yüzdeki duygu ifadelerini yansıtır. Bu bölgedeki defektler çoğunlukla travmalar, pediatrik konjenital anomaliler ve epitelyal malignitelerin cerrahi tedavileri sonucunda ortaya çıkar. Başarılı bir cerrahi müdahale için orbital septum, levator aponevrozu, ön ve arka lameller ile lakrimal drenaj sistemi gibi yapıların anatomisine ve fizyolojisine tam olarak hâkim olunması şarttır. Cerrahi planlamada defektin boyutu, yeri ve hasta faktörleri değerlendirilerek en az morbiditeye sahip en basit yöntem seçilmeli, gerçekçi hedefler belirlenmelidir. Küçük boyuttaki kusurlar için primer kapatma tekniği ve lateral kanotomi/kantoliz gibi yöntemler tercih edilebilirken, izole ön lamel defektlerinde tam kalınlıklı serbest deri greftleri etkin çözümler sunar. Daha geniş ve karmaşık doku kayıplarında ise muskulokutanöz transpozisyon, yanak rotasyon (Mustardé), paramedian alın, karşı kapak (Hughes ve Cutler-Beard) gibi lokal flep tekniklerinden yararlanılır. Ayrıca, kanaliküler sistem yaralanmalarında fonksiyon kaybını ve epiforayı önlemek adına, ameliyathane koşullarında bikanaliküler stentler (Crawford) kullanılarak kanalların açık kalması sağlanır. Sonuç olarak, periorbital bölgeye yönelik çok sayıda cerrahi algoritma bulunmakta olup, cerrahın başarıya ulaşması için derin bir anatomik bilgiye ve değişken hasta faktörlerine göre en doğru tekniği seçebilecek deneyime sahip olması gerekmektedir.
Periorbital reconstruction is a highly challenging and demanding field for surgeons due to the complex anatomy of the region, aiming to ensure the functional and aesthetic integrity of the eyes and surrounding structures. Eyelids serve to protect the eyes, while eyebrows reflect emotional expressions on the face. Defects in this area mostly occur as a result of trauma, pediatric congenital anomalies, and surgical treatments of epithelial malignancies. For a successful surgical intervention, it is essential to have a full command of the anatomy and physiology of structures such as the orbital septum, levator aponeurosis, anterior and posterior lamellae, and the lacrimal drainage system. In surgical planning, the size and location of the defect, as well as patient factors, must be evaluated to select the simplest method with the least morbidity, and realistic goals should be established. While primary closure techniques and methods like lateral canthotomy/cantholysis are preferred for small-sized defects, full-thickness free skin grafts offer effective solutions for isolated anterior lamellar defects. In larger and more complex tissue losses, local flap techniques such as musculocutaneous transposition, cheek rotation (Mustardé), paramedian forehead, and lid-sharing (Hughes and Cutler-Beard) are utilized. Furthermore, in canalicular system injuries, bicanalicular stents (Crawford) are used under operating room conditions to keep the canals open in order to prevent functional loss and epiphora. In conclusion, numerous surgical algorithms exist for the periorbital region, and for a surgeon to achieve success, they must possess deep anatomical knowledge and the experience to select the most accurate technique according to variable patient factors.
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