Correlation Between Speech Outcomes and the Amount of Maxillary Advancement After Orthognathic Surgery (Le Fort I Conventional Osteotomy and Distraction Osteogenesis) in Patients With Cleft Lip and Palate

Jeehyeok Chung, Joonho Lim, Hyunyoung Park, Anna Yoo, Sukwha Kim, Yountaek Koo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Background:The purpose of this study is to evaluate the factors affecting the speech outcome following Le fort I conventional osteotomy(CO) or Le Fort I distraction osteogenesis(DO) in patients with cleft lip and palate at a single institution.Method:Records of cleft lip and palate patients who underwent orthognathic surgery between 2010 and 2015 were reviewed. Data included age at orthognathic surgery, sex, cleft lip and palate type, type of orthognathic surgery, the amount of maxillary advancement, and speech assessment. Speech outcomes were classified into 2 categories. Compared with the pre and post-operative Pittsburgh Weighted speech scale scores, in case that the post-operative total score is increased the authors define it as "Speech deterioration" and if not, the authors define it as "Speech preservation."Result:The 44 patients were identified, 33 patients underwent CO and 11 patients underwent DO. The mean age was 19.4±1.4. The mean period time of speech evaluation after orthognathic surgery was 1.0±0.46 year. The mean amount of maxillary advancement was 7.2±3.2mm and show significant correlation with speech outcomes. (P=0.012). In CO group, the patients who had the maxilla 1∼5mm advancement maintained their speech completely and 44% of patients with 6∼8mm deteriorated their speech. In DO group, patients with 9∼10mm maintained their speech completely, 50% of patients with 11∼12mm deteriorated their speech and 100% of patients with 13∼16mm deteriorated their speech. According to the relationship between the amount of maxillary advancement and speech outcomes, there was a statistically significant correlation in both CO and DO groups. (P=0.04, 0.029).Conclusion:It was found that speech of the patients with more amount of maxillary advancement tended to get worse. Also, it was observed that there exist some stable ranges of maxillary advancement for speech safety which does not effect on speech. (1∼5mm in CO group and 9∼10mm in DO group).

Original languageEnglish
Pages (from-to)1855-1858
Number of pages4
JournalJournal of Craniofacial Surgery
Volume30
Issue number6
DOIs
StatePublished - 1 Sep 2019

Keywords

  • Cleft lip and palate
  • maxillary advancement
  • speech outcome

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