Stability of Cleft maxilla in Le Fort I Maxillary advancement
نویسندگان
چکیده
CONTEXT Le Fort 1 maxillary osteotomy in operated patients of cleft lip and cleft palate (CLCP). AIMS To study stability of Le Fort 1 maxillary osteotomy in operated patients of CLCP by two-dimensional evaluation using cephalometric analysis. SETTINGS AND DESIGN Prospective study conducted at Army Dental Centre (Research and Referral) from May 2009-May 2012. MATERIALS AND METHODS Subjects included nine consecutively operated patients of CLCP with maxillary hypoplasia. Maxillary advancement by Le Fort 1 maxillary step osteotomy was performed. There were four males and five females with an age range of 16-18 years and follow-up range was 12-36 months. Presurgical and postsurgical changes were compared using cephalometrics for orthognathic surgery (COGS) system to determine stability of maxillary movement and quantify amount of relapse at 15 days and 12 months. STATISTICAL ANALYSIS Student's t-test. RESULTS Mean linear horizontal advancement achieved along nasion (N) to anterior nasal spine (ANS) with reference to true vertical plane at 15 days and 12 months was 5.17 and 3.91 mm, respectively. The mean relapse in anteroposterior dimension was 21.63%. The mean vertical displacement observed along nasion and ANS with reference to true horizontal plane at 15 days and 12 months was 5.21 mm and 3.2, respectively with a resultant relapse of 41.54%. CONCLUSIONS Based on clinical and COGS analysis, it is evident that Le Fort 1 advancement in operated cases of CLCP has inherent potential for relapse.
منابع مشابه
Maxillary distraction resulting in facial advancement at Le Fort III level in cleft lip and palate patients: a report of two cases.
An 18-year-old female and a 14-year-old male who had previously received surgery for primary repair of a nonsyndromic cleft lip and palate (including alveolar defect bone grafting) unintentionally developed facial advancement at the Le Fort III level after surgical correction of their maxillary hypoplasia. The Le Fort I osteotomy, originally performed for their maxillary dentoalveolar hypoplasi...
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PURPOSE To evaluate the long-term skeletal stability after maxillary surgical advancement with conventional Le Fort I osteotomy in patients with cleft lip and palate by a systematic review of the published data. MATERIALS AND METHODS Electronic databases, "gray literature," and reference list searches were conducted. The inclusion criteria were the stability of maxillary surgical advancement ...
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