Child's Nervous System

, Volume 34, Issue 5, pp 947–955 | Cite as

3D morphological change of skull base and fronto-temporal soft-tissue in the patients with unicoronal craniosynostosis after fronto-orbital advancement

  • Bin Yang
  • Jian Ni
  • Binghang Li
Original Paper



This study aims to comprehensively evaluate the deformation of the skull base and fronto-temporal soft tissue in the patients with anterior plagiocephaly over 1 year of age by three-dimensional (3D) imaging after fronto-orbital advancement (FOA).


We quantitatively analyzed the surgical results and outcome of FOA performed in 10 patients with anterior plagiocephaly. The measurements of the skull base and fronto-temporal soft tissue were performed based on 3D computed tomography (CT) scan. We assessed symmetry of the skull base and fronto-temporal soft tissue change.


The mean age of patients at FOA was 38.9 months. A significant asymmetry of the skull base was found in all the patients. The growth of the anterior and middle fossae was restricted and the deformation of the fronto-temporal region was marked by soft tissue measurements in different grades. On the follow-up CT images 23.6 months after surgery, there was prominent change (p < 0.05) between the two hemibases (CSO^ ratio) and between the lengths and angles of the anterior and middle cranial hemi-fossae (CX, CSX^, XSM^, XM ratio), especially in grade IIA. Anterior cranial vault asymmetry index obviously decreased to − 1.2 from 12% after surgery (p < 0.05). What’s more, ACA^ was also proved to be less after surgical correction (19.91° versus 8.29°, p < 0.01) in grade IIA. The change of fronto-temporal soft tissue was significant such as the frontal angle, the angle of the frontal plane, the fontal-temporal angle, and the angle of the temporal plane in different grades.


The asymmetry of the skull base and the deformation of the fronto-temporal region can be presented by intracranial view at over 1 year of age in different grades. FOA can correct the skeletal malformation of the fronto-temporal region as well as soft tissue and the asymmetry of the skull base was improved after surgical treatment.


Anterior plagiocephaly Skull base Fronto-orbital advancement Craniometric analysis Soft tissue measurement 3D CT scan 


Funding information

This study is currently receiving the grant (Capital Clinical Medicine Special Project No. Z151100004015056) from Beijing Municipal Science and Technology Commission and the grant (CAMS Initiative for Innovative Medicine 2016-I2M-1-018) from Chinese Academy of Medical Sciences.

Compliance with ethical standards

Conflict of interest

There is no any conflict of interest.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Centre of Maxillofacial Surgery and Digital Plastic Surgery, Plastic Surgery Hospital, Peking Union Medical CollegeChinese Academy of Medical SciencesBeijingPeople’s Republic of China

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