Maxillofacial Plastic and Reconstructive Surgery

Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
권호 표지

CLINICAL STUDY OF SENSORY ALTERATIONS AFTER SAGITTAL SPLIT RAMUS OSTEOTOMY

하악지 시상분할 절단술 후 감각 변화에 관한 연구

  • Choi, Jun-Young (Department of Oral & Maxillofacial surgery, School of Dentistry and Institute of Oral Bioscience, Brain Korea 21 project, Chonbuk National University) ;
  • Yoo, Jun-Yeol (Department of Oral & Maxillofacial surgery, School of Dentistry and Institute of Oral Bioscience, Brain Korea 21 project, Chonbuk National University) ;
  • Yoon, Bo-Keun (Department of Oral & Maxillofacial surgery, School of Dentistry and Institute of Oral Bioscience, Brain Korea 21 project, Chonbuk National University) ;
  • Leem, Dae-Ho (Department of Oral & Maxillofacial surgery, School of Dentistry and Institute of Oral Bioscience, Brain Korea 21 project, Chonbuk National University) ;
  • Shin, Hyo-Keun (Department of Oral & Maxillofacial surgery, School of Dentistry and Institute of Oral Bioscience, Brain Korea 21 project, Chonbuk National University) ;
  • Ko, Seung-O (Department of Oral & Maxillofacial surgery, School of Dentistry and Institute of Oral Bioscience, Brain Korea 21 project, Chonbuk National University)
  • 최준영 (전북대학교 치의학전문대학원 구강안악면외과학교실, 구강생체과학연구소, BK21사업) ;
  • 유준열 (전북대학교 치의학전문대학원 구강안악면외과학교실, 구강생체과학연구소, BK21사업) ;
  • 윤보근 (전북대학교 치의학전문대학원 구강안악면외과학교실, 구강생체과학연구소, BK21사업) ;
  • 임대호 (전북대학교 치의학전문대학원 구강안악면외과학교실, 구강생체과학연구소, BK21사업) ;
  • 신효근 (전북대학교 치의학전문대학원 구강안악면외과학교실, 구강생체과학연구소, BK21사업) ;
  • 고승오 (전북대학교 치의학전문대학원 구강안악면외과학교실, 구강생체과학연구소, BK21사업)
  • Received : 2009.08.10
  • Accepted : 2010.02.22
  • Published : 2010.03.31
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Abstract

The bilateral sagittal split ramus osteotomy (BSSRO) is preferred method of surgical correction for mandibular prognathism, retrognathism and asymmetry. This technique performed from primarily an intraoral incision to avoid a scar. After forward movement of the distal segment of the mandible, healing of bone by primary or secondary intention is easily accomplished through large areas of cancellous bony overlap. When rigid fixation is used for the BSSRO, it is possible to open the mouth during the immediate post-operative period because it promotes the healing process. Although this surgical procedure has been well-documented, the incidence of postoperative trigeminal neurosensory disorder in the region of the inferior alveolar nerve and the mental nerve remains one of the major complication. However, evaluation of objective methods for sensory recovery patterns is insufficient although most patients find their sensory return. Neurometer electrodiagnostic device performs automated neuroselective sensory nerve conduction threshold evaluation by determining current perception threshold (CPT) measures. The purpose of this study was to evaluate the sensory recovery patterns of inferior alveolar and mental nerve over time. Nerve examination with a neurometer was performed in 30 patients undergoing the BSSRO at pre-operative, post-operative 1-, 2-, 4- week, and 2-, 3-, 4-, 5-, 6- month follow-up visits after the osteotomy to compare the differences of nerve injury and recovery patterns after the BSSRO with or without genioplasty and sensory recovery patterns associated with the kind of nerve fiber.

Keywords

References

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