ABSTRACT The mucoperichondrial septal flap (Hadad flap) is vascularised from the posterior septal artery, derived from the sphenopalatine artery. This type of flap was described, in 2006, by surgeons Hadad and Bassagasteguy. It was used to reconstruct the skull base defects after removing skull base tumors. The authors will describe a modified muco-perichondrial-cartilaginous flap derived from the original Hadad flap. The flap harvesting and the reconstructive technique will be described. This kind of flap was used to reconstruct the skull base deffect on 7 pacients, after removing sinonasal neoplasm involving the skull base. The results will be presented. Key words: skull base defects, muco-perichondrial-cartilaginous flap, sinonasal neoplasm, endoscopic reconstructive surgery Medicina modernã. 2014, Vol. 21, No. 2 : 135-138 Copyright© Celsius REZUMAT Utilizarea lamboului compozit muco-pericondro-cartilaginos septal, vascularizat, în chirurgia reconstructivã a defectelor bazei craniului Lamboul septal mucopericondral (lamboul Hadad) este vascularizat de cãtre artera septalã posterioarã, derivatã din artera sfenopalatinã. Acest tip de lambou a fost descris, în 2006, de cãtre chirurgii Hadad æi Bassagasteguy. A fost utilizat pentru reconstrucåia defectelor bazei craniului dupã ablaåia tumorilor ce implicau aceastã regiune. Autorii descriu un lambou muco-pericondro-cartilaginos, derivat din cel original, de tip Hadad. Recoltarea laboului æi tehnica de reconstrucåie vor fi descrise. Acest tip de lambou a fost utilizat pentru reconstrucåia defectelor bazei craniului la 7 pacienåi, dupã înlãturarea tumorilor maligne nazo-sinusale ce implicau baza craniului. Rezultatele vor fi prezentate. Cuvinte cheie: defecte ale bazei craniului, lambou muco-pericondro-cartilaginos, neoplasme nazo-sinusale, chirurgie reconstructivã endoscopicã Surgical Technique The Use of the Composite Muco-perichondrial-cartilaginous Vascularised Septal Flap in the Reconstructive Surgery of the Skull Base Defects R. Hainãroæie 1,2 , O. Ceachir 1 , M. Hainãroæie 1 , Irina G Ioniåã 1 , Cãtãlina Pietroæanu 2 , V. Zainea 1,2 1 “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania 2 Institute of Phonoaudiology and Functional ENT Surgery “Prof. Dr. Dorin Hociotã”, Bucharest, Romania Corresponding author: Mura Hainãroæie, MD Institute of Phonoaudiology and Functional ENT Surgery “Prof. Dr. D. Hociotã”, 21 st Mihail Cioranu Street, District no. 5, Bucharest, Romania e-mail: mura@riaclinic.com