Repositorio
Institucional

Iwanaga, Joe

Siddiqui, Humza Faisal

Konschake, Marko

Ottone, Nicolas E.

Olewnik, Lukasz

Ekanem, Uduak-Obong, I

Dumont, Aaron S.

Sanudo, Jose

Tubbs, R. Shane

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

ELSEVIER SCIENCE INC

WORLD NEUROSURGERY

en

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.

artículo original

10.1016/j.wneu.2022.02.040

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Anatomy

Complications

Imaging

Intracranial

Posterior cranial fossa

Surgery

CRANIAL BASE

CT

CLOSURE

BONE

Neurología Clínica

Cirugía

Anatomía

Complicaciones

Imagen

Intracraneal

Fosa craneal posterior

Cirugía

BASE CRANEAL

CT

CIERRE

HUESO

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

E53

E58

artículo original

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WOS:000836594400003