Three-dimensional analysis of condylar remodeling and skeletal relapse following LeFort-I osteotomy: A one-year follow-up bicenter study
| Autor: | Tong Xi, Frank Baan, Eman Shaheen, Stefaan J. Bergé, Constantinus Politis, Thomas J.J. Maal, Rik van Luijn |
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| Přispěvatelé: | Oral and Maxillofacial Surgery |
| Rok vydání: | 2020 |
| Předmět: |
Cephalometric analysis
Le Fort I osteotomy Three dimensional analysis One year follow up Cephalometry medicine.medical_treatment Osteotomy Condyle Skeletal relapse All institutes and research themes of the Radboud University Medical Center stomatognathic system 3D imaging Recurrence Maxilla Medicine Humans Osteotomy Le Fort Orthodontics Condylar remodeling business.industry Impaction CBCT Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10] Otorhinolaryngology Condylar volume Surgery Female Oral Surgery business Follow-Up Studies |
| Zdroj: | Journal of cranio-maxillo-facial surgery. Churchill Livingstone Journal of Cranio-Maxillo-Facial Surgery, 50, 40-45 Journal of Cranio-Maxillo-Facial Surgery, 50, 1, pp. 40-45 |
| ISSN: | 1878-4119 1010-5182 |
| Popis: | The aim of the study was to quantify the postoperative condylar remodeling after Le Fort I surgery. Patients treated with a Le Fort I osteotomy were investigated. CBCT scans were acquired preoperatively, one week and one year postoperatively. A preoperative 3D cephalometric analysis was performed on the preoperative CBCT. Surgical movements were quantified using a voxel-registration based method (OrthoGnaticAnalyser). After rendering of the condyles from the CBCT, a volumetric analysis was performed. The correlation between the surgical movement of the maxilla and the postoperative condylar volume changes was determined with analysis of variance. RESULTS: A total of 45 subjects were included in this study. 47 of 90 condyles (52%) showed a mean volume reduction of 93 mm3 (4.9 volume-%) postoperatively. The maxilla was impacted in 12 patients (2.44 ± 2.49 mm) and extruded in 33 patients (1.78 ± 1.29 mm). The maxillary impaction group showed a volume reduction of 50 ± 122 mm3 and the extrusion group showed a mean volume gain of 21 ± 139 mm3 (p = 0.028). CONCLUSION: Clinicians should be aware of potential condylar remodeling following solitary Le Fort I osteotomies, particularly in female patients with maxillary impaction. ispartof: JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY vol:50 issue:1 pages:40-45 ispartof: location:Scotland status: published |
| Databáze: | OpenAIRE |
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