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growth of the skull. Fronto-orbital advancement literally means moving the front of the skull including the eye sockets forward. A section of the skull, ranging from the coronal sutures to the eye sockets is cut loose in order to correct the shape of the skull. The incision is cut in a zigzag shape from ear to ear so that the hair will cover the scar and make it less visible. The incision is made to the bone only, leaving the underlying meninges intact. The top half of the eye sockets is cut loose. Once the eye socket section has been cut loose, a vertical incision is made in the midline, and the whole section of the eye socket is bent outwards in order to correct the pointed shape of the forehead. Because the section is now too wide, a wedge needs to be cut on either side to allow the section to fit into the skull. Figure 4 shows the sections that are loosened and adjusted, and Figure 3 shows the location of the vertical incision (arrow A) and the two wedges (arrow B).
146:(see figure 1). The anterior fontanelle is where the metopic, sagittal and coronal sutures meet. Normally the sutures gradually fuse within the first few years after birth. In infants where one or more of the sutures fuses too early the growth of the skull is restricted, resulting in compensation mechanisms which cause irregular growth patterns. Growth in the skull is perpendicular to the sutures. When a suture fuses too early, the growth perpendicular to that suture will be restricted, and the bone growth near the other sutures will be stimulated, causing an abnormal head shape. The expanding brain is the main stimulus for the rapid growth of the skull in the first years of life. Inhibited growth potential of the skull can restrict the volume, needed by the brain. In cases in which the compensation does not effectively provide enough space for the growing brain,
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sagittal suture is surgically reopened. Once the suture has been opened the bone segments will be able to grow again, and the head can regain its normal shape. This operation is only performed on patients younger than five months old with a scaphocephaly. This is due to the fact that the bone segments only have the ability to adapt so severely when the operation is performed at this young age. A scaphocephaly that is diagnosed and treated later in life requires a more extensive secondary operation than one that is treated before five months.
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166:, "light boat or skiff"). The compensatory head-growth forward at the coronal suture gives a prominent forehead, frontal bossing and a prominent back of the head, called coning. The incidence of scaphocephaly is 2.8 per 10,000 births in the Netherlands; therefore, it is the most common form of craniosynostosis.
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Cranioplasty, or skull reconstruction, is the main concentration of a new field for adult neurosurgical patients known as
Neuroplastic Surgery. There are now several centers around the world, including the United States and Israel. The first center of Neuroplastic Surgery was started at Johns Hopkins
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In scaphocephaly, the sagittal suture is prematurely fused, preventing the skull from growing perpendicular to the suture. Thus, the head becomes very narrow and long. If a scaphocephaly is diagnosed within 4 to 5 months after birth, it can be corrected with a relatively simple procedure whereby the
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Craniofacial surgery and follow-up care are usually conducted by a multidisclinary team of doctors, surgeons, nurses, and various therapists. As of 2016, there is a new multidisciplinary care team of
Neuroplastic Surgeons working with Neurosurgeons to prevent and/or correct neurosurgical-related
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In cases where the forehead is involved (trigonocephaly and plagiocephaly), a technique called fronto-supraorbital advancement is used to correct the shape of the head. The procedure is performed at a young age in order to provide the brain with enough space to grow and prevent further abnormal
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In plagiocephaly, one of the coronal sutures is prematurely fused. The coronal sutures run over the top of the head, just in front of the ears. The shape of this deformity is an asymmetrical distortion (flattening of one side of the head) as you can see in figure 2. The incidence is 1 in 10,000
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A major focus in craniosynostosis reconstruction is maintaining normalized aesthetics of temporal region, and avoiding temporal hollowing. Despite using overcorrection methods, autologous fat transfer, and bone grafts to prevent temporal hollowing, up to 50% of patients still experience
112:. Those who have completed residency in oral and maxillofacial surgery may be either single degree or dual-degree surgeons with no differences. There is no specific board for craniofacial surgery. In the US, cleft and craniofacial centers are found in many major academic centers.
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In trigonocephaly, the metopic suture is prematurely fused. The metopic suture is situated in the medial line of the forehead. Premature fusion of this suture causes the forehead to become pointed, giving the head a triangular shape when viewed from above (Greek
96:, Craniofacial microsomia, microtia and other congenital ear anomalies, and many others. Training in craniofacial surgery requires completion of a Craniofacial surgery fellowship. Such fellowships are available to individuals who have completed residency in
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BL Hutchison, Alistair W Stewart and Edwin A Mitchell, Characteristics, head shape measurements and developmental delay in 287 consecutive infants attending a plagiocephaly clinic, Acta
Paediatrica98, September 2009, pp
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Some of the surgical complications in craniofacial surgery may include Death, Shock, Haemorrhage, visual loss, Intracranial collection of air/fluid, Epileptic seizures, Unexpected respiratory complications, etc.
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In scaphocephaly, the sagittal suture is prematurely fused. The sagittal suture runs from the front to the back of the head. The shape of this deformity is a long narrow head, formed like a boat (Greek
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Craniosynostosis is called simple when one suture is involved, and complex when two or more sutures are involved. It can occur as part of a syndrome or as an isolated defect (nonsyndromic).
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JJ van der Vlugt, JJ van der Meulen and HE Creemers, et al., The risk of psychopathology in children with craniosynostosis, Plastic and
Reconstructive Surgery, December 2009, pp 2054-2060
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CF Kweldam, JJ van der Vlugt and JJNM van der Meulen, The incidence of craniosynostosis in the
Netherlands 1997 – 2007, Journal of Plastic, Reconstructive & Aesthetic Surgery
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Neuroplastic
Surgery. Gordon CR, Huang J, Brem H. Neuroplastic Surgery. J Craniofac Surg. 2018 Jan;29(1):4-5. doi: 10.1097/SCS.0000000000004063. PMID 29077688
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In brachycephaly, both of the coronal sutures are prematurely fused. The shape of this deformity is a wide and high head. The incidence at birth is 1/20,000.
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and associated structures. Although craniofacial treatment often involves manipulation of bone, craniofacial surgery is not tissue-specific; craniofacial
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Parens, E., Ed. (2006). Surgically
Shaping Children : Technology, Ethics, and the Pursuit of Normality. Baltimore, Johns Hopkins University Press.
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Persing, John A. (2008-04-01). "MOC-PS(SM) CME Article: Management
Considerations in the Treatment of Craniosynostosis".
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Department of Neurosurgery, which is where this new craniofacial subspecialty was born (
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Fig. 3 Locations of the incisions used in fronto-supraorbital advancement.
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Fig. 4 Bone segments that are removed in fronto-supraorbital advancement
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Fig. 2 Skull deformities associated with single suture synostosis
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Buchanan, EP; Xue, Y; Xue, AS; Olshinka, A; Lam, S (2017).
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