=====Coronal suture=====
{{ http://img.tfd.com/mosbycam/thumbs/500069-fx38.jpg}}The coronal suture is a dense, fibrous connective tissue joint that separates the [[frontal bone]] and [[parietal bone]]s of the [[skull]]. 

The first step in the surgical planning is to know the localization of the coronal suture. According to the  study of Sarmento et al  the distance between the nasion and the coronal suture ranged from 11.5 to 13.5 cm (average 12.02 cm)
((Sarmento SA, Jácome DC, de Andrade EM, Melo AV, de Oliveira OR, Tedeschi H.
Relationship between the coronal suture and the central lobe: how important is it
and how can we use it in surgical planning? Arq Neuropsiquiatr. 2008
Dec;66(4):868-71. PubMed PMID: 19099127.
)). 
Although these measurements are in accordance to literature
((Gusmão S, Reis C, Silveira RL, Cabral G. Relationships between the
coronal suture and the sulci of the lateral convexity of the frontal lobe:
neurosurgical applications. Arq Neuropsiquiatr 2001;59:570-576.))
((Gusmão S, Silveira RL, Arantes A. Landmarks to the cranial approach
es. Arq Neuropsiquiatr 2003;61:305-308.))
((Gonzales-Portillo G. Localization of the central sulcus. Surg Neurol
1996;46:97-99)).

====Premature closure====

There are two possible deformities that can be caused by the premature closure of the coronal suture:

A high, tower-like skull called "[[oxycephaly]]"

A twisted and asymmetrical skull called "[[plagiocephaly]]"

Coronal suture derived from the paraxial mesoderm