title: [Clinical application of condylectomy via intraoral approach under computer assisted surgical navigation].
abstract: OBJECTIVE
  To assess the application of computer assisted surgical navigation in condylectomy via intraoral approach and its clinical results.
  
  
  METHODS
  Eight patients aged from 16 to 56 were treated by condylectomy via intraoral approach under computer assisted surgical navigation. There were 6 female and 2 male. The lesions were condyle osteoma in 3 patients, hemimandibular hyperplasia and condylar hyperplasia in 5 patients. Most patients had concomitant LeFortIosteotomy (6 cases), bilateral sagittal split ramus osteotomy (BSSRO) (5 cases),contralateral sagittal split ramus osteotomy (SSRO) (1 cases), genioplasty (4 cases) and mandible contouring (6 cases) to recover the facial symmetry.
  
  
  RESULTS
  All patients had good occlusion, oral function and facial symmetry after the operation. The average mouth opening was 38 mm before operation, and 41 mm one month after operation. The temporomandibular joint(TMJ) dysfunction syndrome alleviated or disappeared. The follow-up period was 3-12 months, and results were stable.
  
  
  CONCLUSIONS
  Computer assisted surgical navigation can precisely accomplish the condylectomy via intraoral approach.It causes less trauma to the patient than traditional condylectomy, and can better preserve the TMJ structure and function.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Xiao-xia
authors.initials: XX
authors.lastname: Wang
authors.forename: Zi-li
authors.initials: ZL
authors.lastname: Li
authors.forename: Biao
authors.initials: B
authors.lastname: Yi
authors.forename: Cheng
authors.initials: C
authors.lastname: Liang
authors.forename: Kai-yue
authors.initials: KY
authors.lastname: Tian
authors.forename: Xing
authors.initials: X
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D005146:Facial Asymmetry / Q000209:etiology / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D063172:Genioplasty; D006801:Humans; D006965:Hyperplasia; D008297:Male; D008335:Mandibular Condyle / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008339:Mandibular Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D010016:Osteoma / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D019340:Osteotomy, Le Fort / Q000379:methods*; D059229:Osteotomy, Sagittal Split Ramus / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D013705:Temporomandibular Joint Disorders / Q000209:etiology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D055815:Young Adult