A retrospective study on nonunion cases of mandibular fractures
- VernacularTitle:下颌骨骨折骨不连临床病例回顾性研究
- Author:
Zhang DEHUI
;
Zhang YI
- Publication Type:Journal Article
- Keywords:
Nonunion;
Mandible;
Fractures;
Retrospective study
- From:
Journal of Practical Stomatology
1995;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the characteristics and the treatment of nonunion cases of mandibular fractures. Methods:24 patients with 28 sites of nonunion of mandibular fracture were retrospectively investigated. The involvement came from the group of 1087 cases who were treated from 1990 to 2004 in Department of Oral and Maxillofacial, Peking University School of Stomatology. The data were recorded and analyzed. Results:The nonunion rate was 2.2% in present study. Furthermore, mental region and mandibular body were the most common sites of nonunion fracture. 11 patients caused by inadequate fixture were treated only by improving fixation and 9 out of 10 patients in whose nonunion was caused by fracture bone defect were treated by bone grafting. On the other hand, 2 out of 3 patients of nonunion caused by bone infection were treated by curetting the inflammation lesion and bone grafting. 23 patients all healed after 3-6 months postoperatively except 1 patient. Conclusion:The incidence of nonunion is lower than those reported by other researchers outside China. Inadequate fixture, fracture bone defect and bone infection are three causes contributing to nonunion of mandibular fractures. The treatment for nonunion includes improving fixture, curetting the inflammation lesion and bone grafting.
