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Topic: Coronal suture


  
  Psychosurgery: Third Chapter   (Site not responding. Last check: 2007-10-09)
The coronal suture and sphenoidal ridge are primary landmarks in prefrontal lobotomy.
The coronal suture is outlined on the scalp with gentian violet.
The heavy straight line in lob shows the coronal suture as seen by the neurologist who stands six feet behind the head of the table with his eyes in the plane of the suture; and the curved line indicates its appearance to the neurosurgeon who is looking down on the operative field.
lobotomy.info /beta/psychosurgery/chapter03.html   (8161 words)

  
 Age
At lambda (pars lambdica) of lambdoid and sagittal sutures.
At obelion (pars obelica) of the sagittal suture.
At bregma (pars bregmatica of the coronal and sagittal sutures).
www.redwoods.edu /Instruct/AGarwin/anth_6_age.htm   (796 words)

  
 Craniofacial Anomalies - Anatomy of the Newborn Skull
One suture in the middle of the skull extends from the front of the head to the back.
Sutures allow the bones to move during the birth process.
There are two fontanelles (the space between the bones of an infant's skull where the sutures intersect) that are covered by tough membranes.
www.musckids.com /health_library/craniofacial/skullanat.htm   (362 words)

  
 Emergency Craniotomy plan
The coronal suture is 5 cm anterior to the Rolandic fissure (the groove in the brain that divides the posterior sensory- anterior motor portions of the brain) and the "motor strip".
The frontal is parallel to the sagittal midline, mid-pupillary, extending 4cm anterior from the coronal suture.
The sagittal suture is palpable in the midline.
www.uscneurosurgery.com /infonet/ecrani/atlas.htm   (10857 words)

  
 The Sutural System of the Cranium | Harvey Getzoff, DC, DICS
The sutural tissue is continuous with the periosteum of the skull and, eventually, the dural coverings of the brain and spinal cord.
The temporal/sphenoidal suture is both squamosal with temporal overlapping the sphenoid at its superior half, and serrated in the lower half.
The malar/sphenoidal suture is a squamosal suture with the sphenoid overlapping the malar.
www.chiroweb.com /archives/14/10/12.html   (751 words)

  
 CRANIOSYNOSTOSIS
In craniosynostosis the deformity is related to the suture involved and the effects of increasing growth of the brain upon the unfused skull plates.
The skull grows parallel to the fused sagittal suture, the skull becomes elongated as the frontal and occipital bones compensate for the restricted lateral growth of the parietal bones resulting in frontal bossing.
Radiologicaly, in addition to the obliteration of the coronal suture, there is a deformity of the orbit resulting from elevation of the ipsilateral sphenoid ridge, commonly described ‘harlequin orbit’.
www.thamburaj.com /craniosynostosis.htm   (1177 words)

  
 Disorders of Development
Restriction of normal cranial growth at one suture between the frontal and parietal bones produces a characteristic flattening of the forehead on the fused side, and a bulging of the forehead on the non-fused side.
Fusion of the coronal suture indirectly creates lower facial deformities, in which the midline of the face is shifted or twisted.
Most clinicians agree that unilateral coronal synostosis requires cosmetic repair; the type of surgical technique varies depending on the amount of bossing and deformity in the orbital rim.
www.hopkinsmedicine.org /craniofacial/LynmProject/DS/DSSV/IC2.HTM   (474 words)

  
 Emergency Craniotomy
The surface landmarks for the bicoronal flap are the tragus of the ear, the zygoma, the coronal sutures, the widow's peak (intersection of hairline and sagittal midline), the keyhole, the orbital ridge, the sagittal suture, and the glabella
This segment goes as far posteriorly as the coronal suture before swinging forward to end at the temporal line and is followed by a segment arc centered on the zygomatic process, terminating at the widow's peak.
The coronal segment of incision for a combined frontal-temporal craniotomy is more limited on the side contralateral to the lesion, extending only as far as is necessary to get the scalp flap reflected far enough forward to put burr holes and cut a bone flap adequate for frontal lobe exposure.
www.uscneurosurgery.com /infonet/ecrani/operation.htm   (3625 words)

  
 craniofacial diseases   (Site not responding. Last check: 2007-10-09)
The metopic suture is excised and the frontal bone is reshaped.
This is caused by premature fusion of the coronal suture.
Definitive management is surgical where the affected coronal suture is excised, it is important to extend the excision down to the base of the skull.In addition to suture excision, fronto-orbital advance on the ipsilateral side is done to bring the forehead in a position symmetrical to the unaffected side.
www.health.adelaide.edu.au /paed-neuro/craniofacial.html   (2713 words)

  
 eMedicine - Craniosynostosis : Article by Majid A Khan, MD   (Site not responding. Last check: 2007-10-09)
The anterior fontanel is at the junction of the frontal and parietal bones, and it represents the intersection of the metopic, coronal, and sagittal sutures.
The anteroposterior diameter of the skull is increased, whereas the transverse diameter is decreased.
Synostosis of the metopic suture occurs in utero.
www.emedicine.com /radio/topic195.htm   (2998 words)

  
 Aging and Sexing Using Cranial Sutures
These bones are separated by sutures which, in a series, are analogous to the epiphyseo-diaphyseal planes that in both are loci of growth, and that both have a sequence of timing and union (Krogman 1962:76).
Use of suture closure as an age estimate is predicated upon the hypothesis that suture closure is part of the aging process.
Cranial sutures were viewed as controlling both the growth of the brain and, therefore, the shape of the skull.
www.geocities.com /xerexes/Cranial_sutures.html   (1773 words)

  
 UNSW Embryology- Musculoskeletal System - Skull Development
The bones enclosing the brain have large flexible fibrous joints (sutures) which allow firstly the head to compress and pass through the birth canal and secondly to postnatally expand for brain growth.
Suture abnormalities are classified as either "simple" (only one suture involved) or "compound" (two or more sutures involved).
Since noggin misexpression prevents cranial suture fusion in vitro and in vivo, we suggest that syndromic fgfr -mediated craniosynostoses may be the result of inappropriate downregulation of noggin expression.
embryology.med.unsw.edu.au /Notes/skmus8a.htm   (925 words)

  
 Chapter 6 On the Eight Bones of the Head and the Sutures Connecting Them
Suture [sutura sagittalis] running from the middle of the lambda-shaped suture to the middle of the coronal suture, from D [lambda] to B [bregma].
In the seventh figure the coronal suture [sutura coronalis] is illustrated, not presenting its structure as precisely as on the outer surface.
When the suture reaches that point (because it is at a notable distance from the end of the coronal suture in the hollow of the temple), it [sutura sphenoparietalis] runs forward and slightly downward to the ends of the coronal suture.
vesalius.northwestern.edu /chapters/FA.1.06.html   (10786 words)

  
 Sagittal suture - Wikipedia, the free encyclopedia
The sagittal suture (sutura sagittalis) is a dense, fibrous connective tissue joint between the two parietal bones of the skull.
Two anatomical landmarks are found on the sagittal suture: the bregma and the vertex of the skull.
The bregma is formed by the intersection of the sagittal and coronal sutures, and the vertex is the highest point on the skull and is many times near the midpoint of the sagittal suture.
en.wikipedia.org /wiki/Sagittal_suture   (182 words)

  
 Plagiocephaly - Skull Base Institute
This condition occurs with premature closure of one coronal suture on one side of the skull.
The ipsilateral coronal suture is prematurely fused and examination of the skull often reveals a palpable ridge overlying that suture.
This is extended down to the base of the skull and the surgery is typically accompanied with reconstructive remodeling of the frontal bone (forehead bone), and the supraorbital ridge (eyebrow portion of eye socket) in order to bring the forehead and eyebrow in a position symmetrical to the unaffected side.
www.skullbaseinstitute.com /plagiocephaly.htm   (792 words)

  
 HeadShape.Info
The frontal bone is fused with the parietal bones (coronal suture), the sphenoid bones, maxilla and nasal bones.
Lambdoid suture(s): separates the parietal bones and the occipital bone; it arches across the back of the skull ending bilateral where the parietal and occipital bones meets the temporal bone.
Squamosal suture(s): separates the squamous (the flat wing-like upper section) portion of the temporal bones from the parietals.
www.plagiocephaly.org /headshape/default.htm   (427 words)

  
 Abnormal Head Shape   (Site not responding. Last check: 2007-10-09)
Diagram of the fontanelles and sutures in the skull.
The sagittal suture runs from front to back, the two coronal sutures run down the sides, and the metopic suture runs down the front of the forhead.
Those with sagittal suture involvement have long, thin skulls, while those with coronal suture involvement have a flat, short head on one or both sides, depending on whether one or both coronal sutures are involved.
www.pedisurg.com /PtEduc/Abnormal_Head_Shape.htm   (1026 words)

  
 Cranial Content Changes in Craniosynostotic Rabbits
The present study was designed to quantitatively investigate compensatory changes in intracranial contents in rabbits with coronal suture synostosis and compare these changes with those incurred during normal brain growth in non affected rabbits.
The images were used to calculate the size and intracranial indices of the brain parenchyma, the volume of brain parenchyma and cerebrospinal fluid spaces, and the area of the venous sinuses.
Based on the results of path analysis in the present study, premature fusion of the coronal sutures seems to be the primary locus of changes in craniosynostotic rabbits.
www.pitt.edu /~pittanth/grad/research/fellowsmaylephd.html   (564 words)

  
 Coronal suture   (Site not responding. Last check: 2007-10-09)
In this case, the mattress suture is the force necessary to zoomemedicine zoom view interactive.
Joints on the coronal suture stability of sewing with the jaws.
This type coronal suture is the distance from the top of the farfar nearnear technique is used.
sutures.elegantops.net /coronal-suture.html   (1315 words)

  
 Pediatrics | Paediatrics | Pediatric Education | Paediatric Education - PediatricEducation.org
Posteriorly, at the confluence of the superior median, lamboid and sagittal sutures is the posterior fontanelle.
The bones and suture lines may be overriding each other after birth because of molding of the skull through the birth process.
Suture lines felt to be prominently ridged may be an indication of craniosynostosis or premature closure of the sutures.
www.pediatriceducation.org /2006/04/17   (1045 words)

  
 CCDD: Scientist: Education: Symposium: Abstract   (Site not responding. Last check: 2007-10-09)
Growth of the cranial vault in rabbits with congenital coronal suture synostosis.
Coronal suture response to distraction osteogenesis in rabbits with delayed onset coronal suture synostosis.
Suture and dura transplantation in rabbits with cramosynostosis.
www.hopkinsmedicine.org /craniofacial/Symposium/RabbitModel.cfm   (1381 words)

  
 Craniosynostosis - Skull Base Institute
If one or more of the sutures closes early, it Causes the skull to expand in the direction of the open sutures as the brain is growing normally and will take the path of least resistance which may result in an abnormal head shape.
The frequency of occurrence of the various types of craniosynostosis in the population is approximately as follows: sagittal 50-58%, coronal 20-29%, metopic 4-10%, and lambdoid 2-4%.
A generous craniectomy to "reopen" the prematurely fused sutures with extension to the adjacent sutures, in addition to restructuring or remodeling of the involved skull bones when required, is the basic procedure.
www.skullbaseinstitute.com /craniosynostosis/craniosynostosis.htm   (1532 words)

  
 Psychosurgery: Chapter XIV   (Site not responding. Last check: 2007-10-09)
Incisions were made far posterior to the coronal suture in a 41 year old catatonic individual (Case 219) who had been sick off and on since 1918 but who had known a brief period of normality following insulin shock in 1937.
Since the lesions in a lobotomy performed in the plane of the coronal suture although still within the frontal agranular field show little involvement of the lateral group of nuclei, it must be concluded that the frontal agranular field is concerned with motor skills.
Edema and trophic disturbances in the lower limbs have occurred more notably in cases in which the lower portions of the frontal lobe have been incised posterior to the sphenoidal ridge even though the lesions in the upper quadrants were in the plane of the coronal suture.
www.lobotomy.info /chapter14.html   (1655 words)

  
 Craniosynostisis - Children's Healthcare of Atlanta
Subsequently, this suture is the separation between the parietal bones and thus allows lateral growth of the mid-portion of the skull.
Early closure of the sagittal suture restricts lateral growth and creates a head that is narrow from ear to ear.
Unilateral coronal synostosis must be differentiated from contralateral lambdoid synostosis and contralateral “occipital plagiocephaly” caused by positional flattening.
www.choa.org /default.aspx?id=1183   (659 words)

  
 eMedicine - Craniosynostosis : Article Excerpt by: Raj D Sheth, MD   (Site not responding. Last check: 2007-10-09)
The coronal suture separates the 2 frontal bones from the parietal bones.
The lambdoid suture separates the occipital bone from the 2 parietal bones.
Since brain growth drives the bony plates apart at the sutures, a primary lack of brain growth allows premature fusion of all the sutures (see Image 3).
www.emedicine.com /neuro/byname/craniosynostosis.htm   (534 words)

  
 Craniosynostosis, Sagittal, Coronal, Metopic, Lambdoidal - University Health System, San Antonio, Texas
The affected suture is removed (open) and the brain is allowed to grow normally and aided with the postoperative helmet therapy.
Dissection endoscopic release of the closed coronal suture is performed via a small single incision located halfway between the soft spot and the ear on the involved side.
In a similar fashion, the stenosed lambdoid suture is removed with the aid and visualization of an endoscope.
www.craniosynostosis.net /endoscopic.html   (509 words)

  
 Craniosynostosis   (Site not responding. Last check: 2007-10-09)
The coronal sutures begin at the ear and continue superiorly to the top of the skull to meet the sagittal suture.
When one suture is fused, it is removed and the forehead and brow reshaped and brought forward to match the other side.
The sutures are all released and the bones are all repositioned to allow for normal brain growth and to relieve the pressure on the eyes and brain.
www.pedisurg.com /PtEduc/Craniosynostosis.htm   (1142 words)

  
 Radiology, University of Rochester Medical Center
It is thought that the premature closure of the suture results in growth retardation of the skull, which secondarily may lead to functional abnormalities of mentation, breathing, feeding and vision.
The single suture synostosis involves the sagittal, coronal, lambdoid or metopic suture.
The multiple suture synostoses are more often associated with an underlying syndrome such as the Apert syndrome, Crouzon syndrome, Pfeiffer syndrome, Saethre-Chotzen syndrome or Carpenter syndrome [2].
www.urmc.rochester.edu /smd/Rad/neurocases/Neurocase37.htm   (363 words)

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