A Clinical Survey of Orthognathic Surgeries in the Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital for the Last 14 Years

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  • OHSAWA MASAHIRO
    Department of Oral and Maxillofacial Surgery, Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital Department of Oral and Maxillofacial Surgery, Nara Medical University
  • MORI HIROKI
    Department of Oral and Maxillofacial Surgery, Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital Kyoto Jaw Deformity Center, Rakuwakai Otowa Hospital
  • MIYAMOTO ERIKA
    Department of Oral and Maxillofacial Surgery, Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital
  • OZAKI HISASHI
    Department of Oral and Maxillofacial Surgery, Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital
  • TAKASHIMA MORIHIKO
    Department of Oral and Maxillofacial Surgery, Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital Department of Oral and Maxillofacial Surgery, Nara Medical University
  • IMAI YUICHIRO
    Department of Oral and Maxillofacial Surgery, Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital Department of Oral and Maxillofacial Surgery, Nara Medical University
  • YOKOE YOSHIHIKO
    Kyoto Jaw Deformity Center, Rakuwakai Otowa Hospital
  • KIRITA TADAAKI
    Department of Oral and Maxillofacial Surgery, Nara Medical University

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Other Title
  • 洛和会音羽病院京都口腔健康センターにおける14年間の顎矯正手術症例の検討
  • ラクワカイオン ウ ビョウイン キョウト コウコウ ケンコウ センター ニ オケル 14ネンカン ノ ガク キョウセイ シュジュツ ショウレイ ノ ケントウ

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Abstract

A clinical survey was conducted on 1,180 cases of orthognathic surgery at Kyoto Oral Health Care Center, Rakuwakai Otowa Hospital from 2008 to 2022. The results were as follows: <br>1．The total number of patients was 1,180 cases for the last 14 years, and the average annual number was 84.4. <br>2．The male-female ratio was 1:2.8. <br>3．The mean age was 27.5 years old. <br>4．The most common clinical diagnosis was maxillary retrusion and mandibular protrusion, accounting for 276 cases. <br>5．The most frequently performed operation was the combination of Le Fort Ⅰ osteotomy （LF） and intraoral vertical ramus osteotomy （IVRO）, accounting for 297 cases, followed by the combination of LF and sagittal split ramus osteotomy （SSRO） at 241 cases. <br>6．The mean operation time and mean amount of bleeding were 286 minutes and 92g in LF＋IVRO, and 337 minutes and 133g in LF＋SSRO. <br>7．The number of cases of inferior alveolar nerve sensory disturbance after IVRO was less than that after SSRO or intraoral inverted L ramus osteotomy （ILRO）. The disorders by IVRO or ILRO were completely resolved within 1 year after surgery. <br>8．The mean duration of hospital stay was 7.5 days. <br>9．The number of referral clinics and hospitals from 2008 to 2022 was 53.

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