Morphometric analysis of the sella turcica in subjects with different vertical growth patterns – a cephalometric study

HOMO ◽  
2021 ◽  
Author(s):  
Tatjana Perović ◽  
Zorica Blažej ◽  
Ivan Jovanović ◽  
Marija Cvetković
Keyword(s):  
Morphometric Analysis ◽  
Sella Turcica ◽  
Growth Patterns ◽  
Vertical Growth ◽  
Cephalometric Study

scholarly journals Skeletal alterations associated with the use of bonded rapid maxillary expansion appliance

2011 ◽  
Vol 22 (4) ◽  
pp. 334-339 ◽  
Author(s):  
Moara de Rossi ◽  
Andiara de Rossi ◽  
Jorge Abrão
Keyword(s):  
Rapid Maxillary Expansion ◽  
Growth Patterns ◽  
Facial Growth ◽  
Maxillary Expansion ◽  
Skeletal Changes ◽  
End Of Treatment ◽  
The Face ◽  
Vertical Changes ◽  
Skeletal Effects ◽  
Cephalometric Study

Bonded maxillary expansion appliances have been suggested to control increases in the vertical dimension of the face after rapid maxillary expansion (RME). However, there is still no consensus in the literature about its real skeletal effects. The purpose of this prospective study was to evaluate, longitudinally, the vertical and sagittal cephalometric alterations after RME performed with bonded maxillary expansion appliance. The sample consisted of 26 children, with a mean age of 8.7 years (range: 6.9-10.9 years), with posterior skeletal crossbite and indication for RME. After maxillary expansion, the bonded appliance was used as a fixed retention for 3.4 months, being replaced by a removable retention subsequently. The cephalometric study was performed onto lateral radiographs, taken before treatment was started, and again 6.3 months after removing the bonded appliance. Intra-group comparison was made using paired t test. The results showed that there were no significant sagittal skeletal changes at the end of treatment. There was a small vertical skeletal increase in five of the eleven evaluated cephalometric measures. The maxilla displaced downward, but it did not modify the facial growth patterns or the direction of the mandible growth. Under the specific conditions of this research, it may be concluded that RME with acrylic bonded maxillary expansion appliance did promote signifciant vertical or sagittal cephalometric alterations. The vertical changes found with the use of the bonded appliance were small and probably transitory, similar to those occurred with the use of banded expansion appliances.

scholarly journals 3DCT Morphometric Analysis of Sella Turcica in Iraqi Population

2016 ◽  
Vol 25 (3) ◽  
pp. 227-232 ◽  
Author(s):  
Haider Ali Hasan ◽  
Mohammad Khursheed Alam ◽  
Yap Johari Abdullah ◽  
Junzaburo Nakano ◽  
Tatsunori Yusa ◽  
...  
Keyword(s):  
Morphometric Analysis ◽  
Sella Turcica

3D Evaluation of the Relationship between Different Vertical Growth Patterns and Cranial Base Angulations

2020 ◽  
Author(s):  
Mehmet Ugurlu ◽  
Rıdvan Oksayan ◽  
Ibrahim Sevki Bayrakdar ◽  
Fatih Kahraman ◽  
Ilhan Metin Dagsuyu ◽  
...  
Keyword(s):  
Statistical Tests ◽  
Three Dimensional ◽  
Cranial Base ◽  
Growth Patterns ◽  
High Angle ◽  
Facial Growth ◽  
Vertical Growth ◽  
Study Results ◽  
Kolmogorov Smirnov ◽  
Normal Angle

Abstract Objectives This study aimed to compare cranial base angulations in subjects with high-angle, low-angle, and normal-angle vertical growth patterns using cone beam computed tomography (CBCT). Design This study is a retrospective clinical research. Settings This study was carried out at the Dentistry Faculty of Eskisehir Osmangazi University. Participants According to skeletal vertical face growth patterns, 78 subjects (48 females and 30 males, average age: 13.19 ± 1.73 years) were divided equally into three groups: high angle, low angle, and normal angle groups. Main Outcome Measures Cephalometric images were derived from CBCT, and patients were classified according to the SN-GoGn angle (sella-nasion, gonion gnathion angle). Sagittal, axial, and coronal cranial base angulations were measured in three-dimensional (3D) CBCT images. Data were analyzed using the Kolmogorov–Smirnov normality, Kruskal–Wallis, and Mann-Whitney U statistical tests. Results There were statistically significant differences between the low-angle and high-angle groups according to sagittal cranial base angulation parameters (p = 0.01). Conversely, there were no statistically significant differences between vertical facial growth patterns according to coronal and axial cranial angle variables (p > 0.05). Conclusion According to the study results, there were no effects of cranial base angulations in two planes (coronal and axial) on different vertical skeletal growth patterns. In the sagittal cranial base angulation parameter, the high-angle group showed greater angulation values than the low-angle group. CBCT may be helpful for evaluating, diagnosing, and predicting 3D cranial base differences.

Long-term growth and alignment after occipitocervical and atlantoaxial fusion with rigid internal fixation in young children

2016 ◽  
Vol 17 (1) ◽  
pp. 94-102 ◽  
Author(s):  
Benjamin C. Kennedy ◽  
Randy S. D’Amico ◽  
Brett E. Youngerman ◽  
Michael M. McDowell ◽  
Kristopher G. Hooten ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Young Children ◽  
Internal Fixation ◽  
Growth Patterns ◽  
Long Term Effects ◽  
Fusion Construct ◽  
Rigid Internal Fixation ◽  
Vertical Growth

OBJECT The long-term consequences of atlantoaxial (AA) and occipitocervical (OC) fusion and instrumentation in young children are unknown. Anecdotal reports have raised concerns regarding altered growth and alignment of the cervical spine after surgical intervention. The purpose of this study was to determine the long-term effects of these surgeries on the growth and alignment of the maturing spine. METHODS A multiinstitutional retrospective chart review was conducted for patients less than or equal to 6 years of age who underwent OC or AA fusion with rigid instrumentation at 9 participating centers. All patients had at least 3 years of clinical and radiographic follow-up data and radiographically confirmed fusion. Preoperative, immediate postoperative, and most recent follow-up radiographs and/or CT scans were evaluated to assess changes in spinal growth and alignment. RESULTS Forty children (9 who underwent AA fusion and 31 who underwent OC fusion) were included in the study (mean follow-up duration 56 months). The mean vertical growth over the fused levels in the AA fusion patients represented 30% of the growth of the cervical spine (range 10%–50%). Three different vertical growth patterns of the fusion construct developed among the 31 OC fusion patients during the follow-up period: 1) 16 patients had substantial growth (13%–46% of the total growth of the cervical spine); 2) 9 patients had no meaningful growth; and 3) 6 patients, most of whom presented with a distracted atlantooccipital dislocation, had a decrease in the height of the fused levels (range 7–23 mm). Regarding spinal alignment, 85% (34/40) of the patients had good alignment at follow-up, with straight or mildly lordotic cervical curvatures. In 1 AA fusion patient (11%) and 5 OC fusion patients (16%), we observed new hyperlordosis (range 43°–62°). There were no cases of new kyphosis or swan-neck deformity, evidence of subaxial instability, or unintended subaxial fusion. No preoperative predictors of these growth patterns or alignment were evident. CONCLUSIONS These results demonstrate that most young children undergoing AA and OC fusion with rigid internal fixation continue to have good cervical alignment and continued growth within the fused levels during a prolonged follow-up period. However, some variability in vertical growth and alignment exists, highlighting the need to continue close long-term follow-up.

Sign in / Sign up

Export Citation Format

Share Document