A 3-year Survey on Jaw Deformity Treatment of Kyushu Region in Fukuoka Jaw Deformity Study Group

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  • IZUMI KIWAKO
    Department of Dental Hygiene, Fukuoka College of Health Sciences
  • NAGANUMA KAORI
    Department of Oral and Maxillofacial Surgery, Fukuoka Dental College
  • HORINOUCHI YASUFUMI
    Department of Oral and Maxillofacial Surgery, Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers
  • KUSUKAWA JINGO
    Dental and Oral Medical Center, Kurume University School of Medicine
  • SHIMODA TSUNEHISA
    Dent-oral and Maxillofacial Surgery Clinic
  • MATSUMOTO YUSHI
    Maxillofacial Unit, Oita Oka Hospital
  • YOSHIOKA IZUMI
    Division of Oral medicine, Kyushu Dental University
  • KONDO SEIJI
    Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Fukuoka University
  • IKEBE TETSURO
    Department of Oral and Maxillofacial Surgery, Fukuoka Dental College
  • OHBA SEIGO
    Department of Regenerative Oral Surgery, Nagasaki University
  • ITO MASAKI
    Miyazaki Prefectural Miyazaki Hospital
  • NOZOE ETSURO
    Department of Oral and Maxillofacial Surgery, Field of oral and maxillofacial Rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences
  • KIKUTA TOSHIHIRO
    Department of Oral and Maxillofacial Surgery, Shinyurigaoka General Hospital

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Other Title
  • 福岡顎変形症研究会における3年間の九州地区の顎変形症治療の実態調査
  • フクオカ ガク ヘンケイショウ ケンキュウカイ ニ オケル 3ネンカン ノ キュウシュウ チク ノ ガク ヘンケイショウ チリョウ ノ ジッタイ チョウサ

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Abstract

The aims of this study were to investigate the current treatment of jaw deformity in the Kyushu region in Japan and to consider the differences among surgical facilities and the discussion topics for treating jaw deformity in the region. A questionnaire survey of jaw deformity treatment between April 2014 and March 2017 was carried out and 19 surgical facilities were enrolled in the survey. The survey consisted of questions that referred to a nationwide survey performed by the Japanese Society for Jaw Deformities. <br>As a result, the number of patients who received orthognathic surgery was 1,579, about 68％ of whom were diagnosed with mandibular protrusion. Sagittal split ramus osteotomy （SSRO） was performed in 1,388 patients （87.9％） and Le Fort I osteotomy （LF1） in 536 patients （33.9％）. The average operation time was 163 minutes and the amount of bleeding was 172g in SSSO, and those in two-jaw surgery were 300 minutes and 434g respectively. There was a significant correlation between operation time and blood loss in two-jaw surgery （r＝0.74, p＜0.01）. Autologous blood transfusion was performed in two-jaw surgery patients by all facilities. The average duration of hospital stay was 15 days but varied by more than twenty days depending on the facility. Regarding food type after discharge, 12 facilities （70％） required patients to take chopped or soft food. All complications in this questionnaire survey were experienced. Orthodontic appliance detachment was the complication that occurred most frequently and was experienced by 12 facilities, but just 5 facilities described this in the informed consent. <br>This survey revealed the current status of jaw deformity treatment in the Kyushu region. We considered the values of bleeding loss and operation time in LF1 were high and that it is necessary to re-examine the procedure of LF1. The topics requiring discussion in the future are nutritional intake management and to add orthodontic appliance detachment as a complication to the informed consent.

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