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Transparapharyngeal and transpterygoid transposition of a pedicled occipital galeopericranial flap: a new flap for skull base reconstruction. 2011

Carlos M Rivera-Serrano, and Carl H Snyderman, and Ricardo L Carrau, and Abdullah Durmaz, and Paul A Gardner
Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.

OBJECTIVE We present the anatomic and cadaveric foundations for novel modifications of the occipital galeopericranial flap for reconstruction of ventral skull base defects. METHODS Anatomic description. METHODS Using cadaveric dissections and measurements, we investigated the feasibility of transposing pedicled occipital galeopericranial flaps into the nasal cavity and skull base. Two fresh and five preserved human specimens were dissected. RESULTS Pedicled occipital flaps were transposed into the nasal cavity via a transparapharyngeal-transpterygoid corridor into the nasopharynx. It was demonstrated that the pedicled occipital galeopericranial flap reaches the anterior skull base. CONCLUSIONS Pedicled occipital flaps transposed into the nasal cavity can reach the anterior skull base and provide another option for vascularized reconstruction in selected patients.

UI MeSH Term Description Entries
D009777 Occipital Bone Part of the back and base of the CRANIUM that encloses the FORAMEN MAGNUM. Basilar Bone,Basilar Bones,Bone, Basilar,Bone, Occipital,Bones, Basilar,Bones, Occipital,Occipital Bones
D010614 Pharynx A funnel-shaped fibromuscular tube that conducts food to the ESOPHAGUS, and air to the LARYNX and LUNGS. It is located posterior to the NASAL CAVITY; ORAL CAVITY; and LARYNX, and extends from the SKULL BASE to the inferior border of the CRICOID CARTILAGE anteriorly and to the inferior border of the C6 vertebra posteriorly. It is divided into the NASOPHARYNX; OROPHARYNX; and HYPOPHARYNX (laryngopharynx). Throat,Pharynxs,Throats
D011626 Pterygoid Muscles Two of the masticatory muscles: the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle. Action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side. Muscle, Pterygoid,Muscles, Pterygoid,Pterygoid Muscle
D002102 Cadaver A dead body, usually a human body. Corpse,Cadavers,Corpses
D005240 Feasibility Studies Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project. Feasibility Study,Studies, Feasibility,Study, Feasibility
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013524 Surgical Flaps Tongues of skin and subcutaneous tissue, sometimes including muscle, cut away from the underlying parts but often still attached at one end. They retain their own microvasculature which is also transferred to the new site. They are often used in plastic surgery for filling a defect in a neighboring region. Island Flap,Island Flaps,Flap, Surgical,Flaps, Surgical,Pedicled Flap,Surgical Flap,Flap, Island,Flap, Pedicled,Flaps, Island,Flaps, Pedicled,Pedicled Flaps
D016025 Bone Transplantation The grafting of bone from a donor site to a recipient site. Grafting, Bone,Transplantation, Bone,Bone Grafting
D035262 Cranial Fossa, Anterior The compartment containing the inferior part and anterior extremities of the frontal lobes (FRONTAL LOBE) of the cerebral hemispheres. It is formed mainly by orbital parts of the FRONTAL BONE and the lesser wings of the SPHENOID BONE. Anterior Cranial Fossa,Olfactory Groove,Fossa, Anterior Cranial,Groove, Olfactory,Olfactory Grooves

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