ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

Crouzon's syndrome occurs in 1 in 25,000 live births and follows an autosomal dominant mode of transmission. However,30 to 60 % of cases are sporadic and represent fresh matations. Previous reports involving large series of Crouzon's syndrome patients mixed sporadic and familial cases. In this article, the clinical features of 17 familial cases of Crouzon's syndrome were compared with another 27 sporadic cases. Furthermore, failial caes were studied to document (1) expressivity in members of the same family; (2) the skull base angle in unoperated members of the same family, and (3) the presence of germinal mosaicism. In familial cases of Crouzon's syndrome, craniosynostosis and proptosis were seen in 76% and 88% of patients, respectively. On the other hand, these two features were oberved in 100% of sporadic cases. Variablility of expression in members of the same family was a common finding. The cranial base angle was also variable in the affected members of the same family. In the series, germinal mosaicism was suspected in one family. Possible explanations for our findings are discussed as well as the implications of genetic mapping in Crouzon's syndrome.

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

An Omnipulse holmium-yttrium aluminum garnet (YAG) laser was used to assist in the harvesting of outer table or split calvarial bone grafts in cadaver skulls. Two-or 4-mm depth and 0.55-mm width holes in the outer cortex of cadaveric calvarium were formed without apparent gross periosteal or bony injury. Osteotomes were then used to shave or split calvarial grafts by connecting the 2-and 4-mm depth holes, respectively. The procedure was efficient as well as precise. We belive that this methos of bone graft harvesting many have the added benefit of safety by decreasing the incidence of inadvertent dural penetration. This study will lead to further analysis of the ppotential use for additional bony work with the Omnipulse holmium-YAG laser.

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

Orbital dystopia is one of the most frequent clinical signs of craniofacial malformation. The term dystopia indicates the mono- and bilateral asymmetry of the orbits at least in one of the three-dimensional planes. The diagnosis is based on the clinical test of the patient with the support of diagnostic instruments such as teleradiography in both standard projections, axial computed tomographic (CT) scans at a rate of 1:1 through the neuro-orbital plan, and the three-dimensional CT. Good results of the surgical treatment depend on the patient's age and on adequate programming, which should consider the anomalies in the three spatial planes. The VTO is obtained through a protocol of analysis on cephalometric graphics of the teleradiographies on the CT at a rate of 1:1. The surgical treatment of orbital dystopia is different depending on the age of the patient and the cause of the orbital anomaly. In the case of growing patients, it is preferable to use the fronto-orbital bandeau technique so as not to damage the dental buds, whereas in grown patients Tessier's orbital quadrant technique is used. Even the fixation is quite different between patients who are growing and those who are already grown. In still-growing patients, rigid internal fixation is used only in some cases to avoid the interference with the growth mechanisms.

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

The purpose of this study is to demonstrate an intramuscular fascial layer within the temporalis muscle. This can be used as an inferior plane when developing a temporalis myofascial flap for temporomandibular joint reconstruction. The advantages of using this plane include relatively bloodless zone, adequate thickness of flap for reconstructive purposes, and residual temporalis muscle to prevent the temporal concavity deformity. Cadaveric and clinical examples are presented.

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1049-2275    

出版商:OVID    

年代:1997

数据来源: OVID