Skeletal and Dental Correction and Stability Following LeFort I Advancement in Patients With Cleft Lip and Palate With Mild, Moderate, and Severe Maxillary Hypoplasia.
Cleft Palate Craniofac J
; 59(1): 98-109, 2022 01.
Article
em En
| MEDLINE
| ID: mdl-33722088
ABSTRACT
OBJECTIVE:
This study evaluates skeletal and dental outcomes of LeFort I advancement surgery in patients with cleft lip and palate (CLP) with varying degrees of maxillary skeletal hypoplasia.DESIGN:
Retrospective study.METHOD:
Lateral cephalograms were digitized at preoperative (T1), immediately postoperative (T2), and 1-year follow-up (T3) and compared to untreated unaffected controls. Based on the severity of cleft maxillary hypoplasia, the sample was divided into 3 groups using Witsanalysis:
mild ≤0 to ≥-5 mm; moderate <-5 to >-10 mm; and severe ≤-10 mm.PARTICIPANTS:
Fifty-one patients with nonsyndromic CLP with hypoplastic maxilla who met inclusion criteria. INTERVENTION LeFort I advancement. MAIN OUTCOMEMEASURE:
Skeletal and dental stability post-LeFort I surgery at a 1-year follow-up.RESULTS:
At T2, LeFort I surgery produced an average correction of maxillary hypoplasia by 6.4 ± 0.6, 8.1 ± 0.4, and 10.7 ± 0.8 mm in the mild, moderate, and severe groups, respectively. There was a mean relapse of 1 to 1.5 mm observed in all groups. At T3, no statistically significant differences were observed between the surgical groups and controls at angle Sella, Nasion, A point (SNA), A point, Nasion, B point (ANB), and overjet outcome measures.CONCLUSIONS:
LeFort I advancement produces a stable correction in mild, moderate, and severe skeletal maxillary hypoplasia. Overcorrection is recommended in all patients with CLP to compensate for the expected postsurgical skeletal relapse.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Fenda Labial
/
Fissura Palatina
/
Osteogênese por Distração
Tipo de estudo:
Observational_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article