|
Ok. I finally found some of the paper
work and here's what I have.
First I want to remind that I was
born on February 3rd, 1983. I have X-ray results from April 4, 1983. Here
is the information it contains:
The skull has a tendency to be rather
dolichocephalic(1), however, the sutures(2) are still open. The
sagittal suture
is less wide than the coronal.
I have another X-ray resault from
September 15, 1983:
The skull is somewhat scaphocephalic(3)
in configuration and the sagittal suture is almost completely obliterated.
The coronal and lambdoid sutures remain open with the coronal sutures also
possibly showing some early closing.
These features are considerably
aggravated over that of 4 april 1983
Opinion: Probable sagittal
craniostenosia(4) causing retarded brain growth.
1 - Dolichocephalic - Having a
relatively long head with a cephalic index below 75. The index is obtained
by dividing the maximum width of the cranium by its maximum length and
multiplying by 100. In anthropometry, the cephalic index has been the
favored measurement. A cephalic index of 80 or more is called
brachycephalic or broad; a measurement between 75 and 80 is mesaticephalic;
below 75 is considered dolicocephalic or long. The cranial index is the
same ratio taken on a skull.
2 - Suture - Where the cranial bones
meet is called a suture. The coronal suture separates the frontal bone
from the parietal bones. The sagittal suture separates the two parietal
bones from each other. The lambdoid suture separates the parietals from
the occiput. The squamous suture separates the temporal bone from the
parietals. There are varying kinds of sutures. Some sutures, or "joints"
interdigitate, like lacing your fingers, other sutures have sliding
plates, and others butt up against each other like this. Contrary to
popular belief, the sutures are not completely fused, but actually have
the ability to allow very slight movement, about 1 tenth of a millimeter.
Sutures operate similarly to the way vertebral discs work in the spine.
They allow for compression and tension release so that if you suffer a
strong blow to the head, the suture will accommodate that blow and lesson
the likelihood of severe injury. Sutures also allow micro-movements in
response to inter-cranial pressure.
Here is a picture showing where the
sutures are located in the cranium:

3 -Scaphocephalic - congenital deformity
of the skull in which the vault is narrow, elongated, and boat shaped
because of premature assification of the saggital suture.
4 - Craniosynostosia - premature
closure of one or more cranial sutures, starting almost always before
birth. The prevalence is 1/2000 livebirths. The vast majority (85%) of
craniosynostoses are isolated (non syndromic) and are classified on which
suture is involved. In craniosynostotic syndromes (15%), classification is
defined phenotypically, based on facial and limb anomalies. The proportion
of familial cases is important in syndromic forms (40%) and the syndrome
is usually transmitted as an autosomal dominant trait. The main sign of
craniosynostosis is a skull deformity which involved also the face in
syndromic forms. This deformity allows early diagnosis, in the neonatal
period, in the vast majority of cases. Later, an increased intracranial
pressure can occur, due to a growth conflict between brain and skull, and
can lead to blindness and mental delay. The frequency of increased
intracranial pressure varies according to the type of craniosynostosis and
increases with age. The treatment is based on surgical skull decompression
and craniofacial reconstruction. The management of craniosynostoses needs
multidisciplinary craniofacial teams with well trained neurosurgeons,
plastic surgeons and pediatric anesthesiologists. The results are better
after early treatment.
* author : E. Lajeunie M.D. (Novermber
2002) *
---
Home
-
About Me
-
Rants
-
Gaming
-
Pictures
-
Links
|