Cranio-Orbito-Zygomatic Measurements from Standard CT Scans in Unoperated Treacher Collins Syndrome Patients: Comparison with Normal Controls

Posnick, Jeffrey C.; Al‐Qattan, Mohammad M.; Moffat, Stephanie M.; Armstrong, Derek

doi:10.1597/1545-1569(1995)032<0020:cmfscs>2.3.co;2

Cited by 24 publications

(7 citation statements)

References 18 publications

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“…With minimum differences (measuring error below 5%) in direct measurements of osseous structures of the skull and indirect measurements performed on CT scans of the same skulls, they demonstrated that measurements performed on CT scans are highly reliable 11 . According to Posnick et al 17 reported in females in the present study is slightly lower than 80.54±7.20 reported in females 11 . The difference between the findings in this study and previous study 11 may not be unconnected with the difference in race as well as age range difference among study participants.…”

Section: Discussioncontrasting

confidence: 70%

Normal Beyin Gelişimi Gösteren Çocuklarda Bilgisayarlı Tomografi (BT) Taraması İle Kranial İndeksin Belirlenmesi: Retrospektif Bir Çalışma

Musa¹,

Danfulani²

2015

Cukurova Medical Journal

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Purpose: Cranial Index (CI) determination is of clinical significance in the evaluation of skull growth and development in children. This study investigated cranial index in computed tomography (CT) scans of children seen in the Radiology Department of Usmanu Danfodiyo University Teaching Hospital Sokoto, Nigeria. Materials and Methods: A total of CT scan records of 76 children (42 males and 34 females) with normal brain development were used for this retrospective study. The cranial length (CL) and cranial width (CW) were measured on the axial CT and cranial index calculated as the percentage of cranial width to cranial length multiplied by 100. Mean values of CL, CW, CI as well as standard deviations and standard error of mean were calculated for both sexes. Results: The overall mean values for cranial length was 16.45±1.01, cranial width 13.01±0.94 and CI was 79.12±3.37. Meanwhile in males, the CI was 78.35±3.23 and 80.08±3.34 in females respectively. Thus, classifying head patterns based on the CI values seen in this study, 55.26% of the children had mesocephalic head shape and 28.95% had brachycephaly. Dolicocephaly and hyperbrachycephaly had a frequency of 7.89% each. Conclusion: Cranial Index (CI) reported in this study showed that most of the children had mesocephalic head shape (55.26%) with dolicocephaly (7.89%) and brachycephaly (7.89%) less common. The observed difference between the mean cranial index of males and females was statistically significant (p = 0.025). The report from this study is of importance in the field of pediatric neurology, anthropology as well as genetics and forensic medicine.

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Section: Discussioncontrasting

confidence: 70%

Normal Beyin Gelişimi Gösteren Çocuklarda Bilgisayarlı Tomografi (BT) Taraması İle Kranial İndeksin Belirlenmesi: Retrospektif Bir Çalışma

Musa¹,

Danfulani²

2015

Cukurova Medical Journal

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“…Other authors have also suffered from groups of patients not truly representative of the TreacherCollins syndrome population and low sample sizes because of the rarity of the condition. 1,17,21 We have shown that geometric morphometrics still has a role in the severely affected child with absent zygomatic arches or complete absence of the orbitozygomatic region. If there is unilateral absence of the orbitozygomatic region secondary to trauma or malignancy, surgeons have used the contralateral normal facial skeleton to design a size-matched zygoma or absent temporomandibular joint process.…”

Section: Discussionmentioning

confidence: 92%

Planning Surgical Reconstruction in Treacher-Collins Syndrome Using Virtual Simulation

Nikkhah

Ponniah

Ruff

et al. 2013

Plastic and Reconstructive Surgery

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“…The sphenoethmoidal region is positioned posteriorly, closer than normal to the sella, and the cranial base is significantly misshapen (Grayson et al, 1985). Additionally, Frankfurt plane could not be used as a reference in this study due to severe deformities observed in the orbital cavity (Marsh et al, 1986;Posnick et al, 1995). No cranial base differences were observed between TCS and PRS.…”

Section: Discussionmentioning

confidence: 99%

Comparison Between Treacher Collins Syndrome and Pierre Robin Sequence: A Cephalometric Study

Kato

Moura

Zechi-Ceide

et al. 2020

The Cleft Palate Craniofacial Journal

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Objective: The aim of this study was to compare the dentoskeletal pattern of Treacher Collins syndrome (TCS) and nonsyndromic Pierre Robin sequence (PRS). Design: Retrospective. Setting: Single center. Patients: Eighteen patients diagnosed with TCS (Group TCS) or PRS (Group PRS) in rehabilitation treatment at a single center. Group TCS was composed of 9 patients (4 male, 5 female) with a mean age of 12.9 years (standard deviation = 4.8). Group PRS was composed of 9 patients paired by age and sex with group TCS. Main Outcome Measure(s): Cone beam computed tomography–derived cephalometric images taken before the orthodontic or the orthodontic-surgical treatment were analyzed using Dolphin Imaging (Dolphin Imaging 11.0 & Management Solutions). Variables evaluating the cranial base, the maxillary and mandibular skeletal components, maxillomandibular relationship, the vertical components and the dentoalveolar region were measured. Intergroup comparisons were performed using t tests. The significance level considered was 5%. Results: Intergroup differences in the mandible size and growth pattern were observed. Group TCS showed a smaller mandibular length (Co-Go, Co-Gn) and a higher palatal plane (SN-Palatal Plane) and mandibular plane angles (SN-Go.Gn) compared to group PRS. No differences between TCS and PRS were observed for the sagittal position of the maxilla, maxillomandibular relationship, and dental components. Conclusions: Treacher Collins syndrome presented a decreased mandible and a more severe vertical growth pattern compared to PRS.

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Cranio-Orbito-Zygomatic Measurements from Standard CT Scans in Unoperated Treacher Collins Syndrome Patients: Comparison with Normal Controls

Cited by 24 publications

References 18 publications

Normal Beyin Gelişimi Gösteren Çocuklarda Bilgisayarlı Tomografi (BT) Taraması İle Kranial İndeksin Belirlenmesi: Retrospektif Bir Çalışma

Normal Beyin Gelişimi Gösteren Çocuklarda Bilgisayarlı Tomografi (BT) Taraması İle Kranial İndeksin Belirlenmesi: Retrospektif Bir Çalışma

Planning Surgical Reconstruction in Treacher-Collins Syndrome Using Virtual Simulation

Comparison Between Treacher Collins Syndrome and Pierre Robin Sequence: A Cephalometric Study

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