Prevalence of Petrooccipital Fissure Fusion: Osteological Study with Application to Approaches to the Skull Base and Imaging Interpretation

Primer Autor
Iwanaga, Joe
Co-autores
Siddiqui, Humza Faisal
Konschake, Marko
Ottone, Nicolas E.
Olewnik, Lukasz
Ekanem, Uduak-Obong, I
Dumont, Aaron S.
Sanudo, Jose
Tubbs, R. Shane
Título
Prevalence of Petrooccipital Fissure Fusion: Osteological Study with Application to Approaches to the Skull Base and Imaging Interpretation
Editorial
ELSEVIER SCIENCE INC
Revista
WORLD NEUROSURGERY
Lenguaje
en
Resumen
INTRODUCTION: The petrooccipital fissure (POF) has relevance to skull base approaches, various tumors and craniosynostoses, and some cases of age-related hearing loss. However, the prevalence of fusion and classification of such is rarely found in the extant medical literature. METHODS: One-hundred and 10 dry human skulls (220 sides) were used for this study. The skulls were evaluated for fusion of the POF. Both the endocranial and exocranial aspects of the POF were analyzed. A classification scheme was developed to better describe the location of POF fusion. RESULTS: A fused POF was identified on 36 sides (16.4%) and commonly found bilaterally (11%). Of these, 30 sides (83.3%) were completely fused (type I) and 6 sides (2.7%) were partially fused (types II and III). For the partially fused fissures, the fused part was on all but 2 sides with the most anterior portion of the petrous part of the temporal bone and adjacent clivus (type II). For the 2 sides (both right sides), the fusion was more posteriorly located between the petrous part of the temporal bone and lateral clivus (type III). Fusion of the POF was more often found in specimens with a partially or fully ossified petroclival ligament. Completely fused POF was positively correlated to sides with an intrajugular bony septum. CONCLUSIONS: A POF fusion was relatively common and associated with an ossified petroclival ligament and intrajugular bony septation. Such a prevalence is important for clinicians and skull base surgeons interpreting imaging of the skull base.
Tipo de Recurso
artículo original
doi
10.1016/j.wneu.2022.02.040
Formato Recurso
PDF
Palabras Claves
Anatomy
Complications
Imaging
Intracranial
Posterior cranial fossa
Surgery
CRANIAL BASE
CT
CLOSURE
BONE
Ubicación del archivo
http://dx.doi.org/10.1016/j.wneu.2022.02.040
Categoría OCDE
Neurología Clínica
Cirugía
Materias
Anatomía
Complicaciones
Imagen
Intracraneal
Fosa craneal posterior
Cirugía
BASE CRANEAL
CT
CIERRE
HUESO
Disciplinas de la OCDE
Anatomía y Morfología
Neurociencias
Otros Temas de Medicina Clínica
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Prevalence of Petrooccipital Fissure Fusion: Osteological Study with Application to Approaches to the Skull Base and Imaging Interpretation
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artículo original
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version publicada
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WOS:000836594400003
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