scholarly journals Should the frontal bone be visualized in midline sagittal views of the facial profile to assess the fetal nasal bones during the first trimester?

2004 ◽  
Vol 25 (1) ◽  
pp. 90-92 ◽  
Author(s):  
L. F. Gonçalves ◽  
J. Espinoza ◽  
W. Lee ◽  
R. Romero
Keyword(s):  
First Trimester ◽  
Frontal Bone ◽  
Facial Profile ◽  
Nasal Bones

STUDY OF INCIDENCE OF THE CORONAL APPROACH IN CRANIOFACIAL TRAUMA AND ADVANTAGEOUS OF TITANIUM MESH IN RECONSTRUCTION OF CRANIOFACIAL DEFECTS.

2021 ◽  
pp. 53-54
Author(s):  
Mastan Shaik
Keyword(s):  
Maxillofacial Surgery ◽  
Frontal Bone ◽  
Male Participant ◽  
Female Participant ◽  
Oral And Maxillofacial Surgery ◽  
Industrial Accidents ◽  
Nasal Bones ◽  
Aesthetic Results ◽  
One Year ◽  
Craniofacial Defects

INTRODUCTION: The coronal approach gives a broad exposure to the frontal bone, the calvaria, the nasal bones, the orbits, the subcondylar region, the zygoma and the zygomatic arch and gives ideal aesthetic results with less complication. The common craniofacial fractures are Nasal bones (45%), cranial bones (24%), Mandible (13%), Zygoma (13%), Orbital blowout (3%), Maxilla (2%). Common causes of fractures are Road trafc accident, Assault, Industrial accidents, Recreational accidents, Frontal bone fracture. METHOD: The study was carried out for a period of one year from March 2020 to March 2021. The study conducted in St Joseph dental college ELURU in the department of Oral and Maxillofacial Surgery. The age limit for this study was below 30 years. The number of subjects involved in this study was 5. Number of females was 3 and males were 2 in this study. RESULT: Number of female participants in this study was 3 and number of male participants was 2.Number of male participants with coronal incision were 1 and number of participants with pretrichial incision were 2.Out of 2 one for male participant and one for female participant. CONCLUSION: The coronal ap has recently become a preferred approach for access to the craniofacial skeleton and orbit. This method of exposure has become particularly useful with increased indications for rigid internal xation and primary bone grafting in the management of complex facial fractures.

P10.09: First trimester ductus venosus, nasal bones and trisomy 21 in a high-risk population

2004 ◽  
Vol 24 (3) ◽  
pp. 322-322
Author(s):  
F. Prefumo ◽  
A. Bhide ◽  
S. Sairam ◽  
L. Penna ◽  
B. Thilaganathan
Keyword(s):  
High Risk ◽  
Trisomy 21 ◽  
First Trimester ◽  
Ductus Venosus ◽  
High Risk Population ◽  
Risk Population ◽  
Nasal Bones

OP04.04: First-trimester assessment of the nasal bones using the retronasal triangle view: a three-dimensional sonographic study

2010 ◽  
Vol 36 (S1) ◽  
pp. 62-62
Author(s):  
P. Martinez ◽  
M. B. Adiego ◽  
J. Perez-Pedregosa ◽  
T. Illescas ◽  
A. Wong ◽  
...  
Keyword(s):  
Three Dimensional ◽  
First Trimester ◽  
Nasal Bones ◽  
Retronasal Triangle

Prenasal Thickness, Prefrontal Space Ratio and Other Facial Profile Markers in First-Trimester Fetuses with Aneuploidies, Cleft Palate, and Micrognathia

2016 ◽  
Vol 43 (3) ◽  
pp. 231-240 ◽  
Author(s):  
Merel Bakker ◽  
Margherita Pace ◽  
Els de Jong-Pleij ◽  
Erwin Birnie ◽  
Karl-Oliver Kagan ◽  
...  
Keyword(s):  
Cleft Palate ◽  
First Trimester ◽  
Facial Profile ◽  
Space Ratio

First-trimester nuchal translucency, nasal bones, and trisomy 21 in selected and unselected populations

2006 ◽  
Vol 194 (3) ◽  
pp. 828-833 ◽  
Author(s):  
Federico Prefumo ◽  
Shanthi Sairam ◽  
Amarnath Bhide ◽  
Baskaran Thilaganathan
Keyword(s):  
Trisomy 21 ◽  
First Trimester ◽  
Nuchal Translucency ◽  
Nasal Bones

scholarly journals P10.08: First trimester nasal bones and trisomy 21 in a low-risk population

2004 ◽  
Vol 24 (3) ◽  
pp. 322-322
Author(s):  
F. Prefumo ◽  
A. Bhide ◽  
S. Sairam ◽  
B. Hollis ◽  
B. Thilaganathan
Keyword(s):  
Trisomy 21 ◽  
First Trimester ◽  
Low Risk ◽  
Risk Population ◽  
Nasal Bones

scholarly journals Using an impact hammer to perform biomechanical measurements during osteotomies: Study of an animal model

2021 ◽  
pp. 095441192110118
Author(s):  
Léo Lamassoure ◽  
Justine Giunta ◽  
Giuseppe Rosi ◽  
Anne-Sophie Poudrel ◽  
Romain Bosc ◽  
...  
Keyword(s):  
Motion Tracking ◽  
Nasal Bone ◽  
Zealand White Rabbit ◽  
Force Sensor ◽  
Frontal Bone ◽  
Peak Time ◽  
New Zealand White Rabbit ◽  
Nasal Bones ◽  
Left And Right ◽  
Second Peak

Osteotomies are common surgical procedures used for instance in rhinoplasty and usually performed using an osteotome impacted by a mallet. Visual control being difficult, osteotomies are often based on the surgeon proprioception to determine the number and energy of each impact. The aim of this study is to determine whether a hammer instrumented with a piezoelectric force sensor can be used to (i) follow the displacement of the osteotome and (ii) determine when the tip of the osteotome arrives in frontal bone, which corresponds to the end of the osteotomy pathway. Seven New Zealand White rabbit heads were collected, and two osteotomies were performed on their left and right nasal bones using the instrumented hammer to record the variation of the force as a function of time during each impact. The second peak time τ was derived from each signal while the displacement of the osteotome tip D was determined using video motion tracking. The results showed a significant correlation between τ and D ( ρ2 = 0.74), allowing to estimate the displacement of the osteotome through the measurement of τ. The values of τ measured in the frontal bone were significantly lower than in the nasal bone ( p<10−10), which allows to determine the transition between the nasal and frontal bones when τ becomes lower than 0.78 its initial averaged value. Although results should be validated clinically, this technology could be used by surgeons in the future as a decision support system to help assessing the osteotome environment.

scholarly journals Ultrasonographic Study of Fetal Facial Profile Markers During First Trimester

2021 ◽  
Author(s):  
Chunya Ji ◽  
Qiaomei Zhao ◽  
Linliang Yin ◽  
Xuedong Deng ◽  
Zhong Yang ◽  
...  
Keyword(s):  
First Trimester ◽  
Nuchal Translucency ◽  
Han Chinese ◽  
Reference Ranges ◽  
Normal Range ◽  
Crown Rump Length ◽  
Facial Profile ◽  
Profile Line ◽  
Sample Data ◽  
Operator Reproducibility

Abstract Background: To establish normal reference ranges of fetal facial profile markers, and to study their correlation with crown-rump length (CRL) during first trimester (11~13+6 weeks’ gestation) in a Han Chinese population. Methods: Ultrasonographic images of measuring fetal nuchal translucency (NT) were retrospectively selected randomly in normal pregnancies where both parents were of Han Chinese ethnicity. The facial markers included inferior facial angle (IFA), maxilla-nasion-mandible (MNM) angle, facial maxillary angle (FMA) and profile line (PL) distance. These markers were measured through ViewPoint 6 software by two experienced sonographers.Results: Three hundred and eighty fetuses were selected. The ICCs (95% CI) of intra-operator 1 reproducibility of IFA, MNM angle, FMA, PL distance were 0.944 (0.886~0.973), 0.804 (0.629~0.902), 0.834 (0.68~0.918) and 0.935 (0.868~0.969), respectively. The ICCs (95% CI) of intra-operator 2 reproducibility of IFA, MNM angle, FMA, PL distance were 0.931 (0.857~0.967), 0.809 (0.637~0.904), 0.786 (0.600~0.892) and 0.906 (0.813~0.954), respectively. The ICCs (95% CI) of inter-operator reproducibility of IFA, MNM angle, FMA, PL distance were 0.885 (0.663~0.953), 0.829 (0.672~0.915), 0.77 (0.511~0.891) and 0.844 (0.68~0.925), respectively. The average±SD of IFA, MNM angle, FMA and PL distance were 80.2°±7.25°, 4.17°±1.19°, 75.36°±5.31°, 2.78±0.54 mm, respectively. IFA and PL distance significantly decreased with CRL, while MNM angle and FMA significantly increased with CRL.Conclusion: It was feasible to measure fetal facial markers during first trimester. The normal range of each marker was obtained through large sample data, and the measurements were found to correlate with CRL.

First-Trimester Ductus Venosus, Nasal Bones, and Down Syndrome in a High-Risk Population

2005 ◽  
Vol 105 (6) ◽  
pp. 1348-1354 ◽  
Author(s):  
Federico Prefumo ◽  
Farah Sethna ◽  
Shanthi Sairam ◽  
Amarnath Bhide ◽  
Baskaran Thilaganathan
Keyword(s):  
Down Syndrome ◽  
High Risk ◽  
First Trimester ◽  
Ductus Venosus ◽  
High Risk Population ◽  
Risk Population ◽  
Nasal Bones
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