The use of three-dimensional reconstructions of CT scans to evaluate anomalies of hyoid bone in Pierre Robin sequence: A retrospective study.
J Stomatol Oral Maxillofac Surg
; 121(4): 357-362, 2020 Sep.
Article
em En
| MEDLINE
| ID: mdl-31499229
ABSTRACT
AIM:
The aim of the study was to investigate hyoid bone anomalies in patients with Pierre Robin sequence (PRS) compared to the control group, using computed tomography (CT) examination and three-dimensional reconstruction of the hyoid bone and mandible.METHODS:
A retrospective study was performed of patients between birth and 12 months old with isolated PRS (i-PRS) and syndromic PRS (ni-PRS), who had undergone CT examination, and whose results were compared to the control group of the same age. DICOM data was processed to highlight bone tissue. The mandible and hyoid bones were the main targets of the three-dimensional reconstruction. The study outcomes were the analysis of hyoid bone ossification, volume, and position (distance between hyoid and mandibular symphysis). Univariate and multivariate statistical analyses were performed with α=0.05 as level of significance.RESULTS:
The study sample included 29 i-PRS and 21 ni-PRS patients, while 43 infants in the control group. Hyoid ossification was present in 26/50 (52%) PRS patients (14 i-PRS; 12 ni-PRS) but in 31/43 controls (72%). Statistical analysis showed that absence of hyoid ossification was significantly associated with the diagnosis of PRS (P<0.05). Only ni-PRS patients showed a significant reduction of the distance between hyoid and mandible compared to the control group (P<0.001). Hyoid volume was significantly lower only in the ni-PRS group than in controls (P<0.001).CONCLUSION:
I-PRS and ni-PRS patients differ both etiologically and clinically. Ni-PRS patients confirmed their worst clinical condition than i-PRS with severe anomalies of hyoid development, helping for their ontogeny classification.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Síndrome de Pierre Robin
/
Osso Hioide
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Humans
/
Infant
Idioma:
En
Revista:
J Stomatol Oral Maxillofac Surg
Ano de publicação:
2020
Tipo de documento:
Article