Teixeira A C, Luz J G, Araújo V C, Araújo N S
Department of Oral and Maxillo-Facial Surgery, University of São Paulo, Brazil.
J Craniomaxillofac Surg. 1998 Oct;26(5):326-30. doi: 10.1016/s1010-5182(98)80063-2.
Healing of the displaced condylar process fracture was analysed by means of an experimental model using adults rats. Displaced fractures of the right condylar process were achieved under general anaesthesia. Histological data initially demonstrated neutrophilic exudation along the articular capsule and adjacent muscle fibres. One week later, devitalized bone areas at the fracture site, as well as proliferation of cartilaginous and osseous tissue were observed. Subsequently, exuberant callus formation and a decrease in the inflammatory process occurred. After 3 months, the condylar process presented characteristics of normality and was centralized into the temporal fossa, with interposition of the articular disc. These results indicate that experimentally induced, displaced condylar process fractures heal by callus formation with simultaneous repositioning of the condyle.
通过使用成年大鼠的实验模型，分析了移位髁突骨折的愈合情况。在全身麻醉下造成右侧髁突的移位骨折。组织学数据最初显示沿关节囊和相邻肌纤维有嗜中性渗出。一周后，观察到骨折部位的失活骨区域以及软骨和骨组织的增生。随后，出现了大量骨痂形成且炎症过程减轻。3个月后，髁突呈现正常特征并归位于颞窝，关节盘有插入。这些结果表明，实验诱导的移位髁突骨折通过骨痂形成以及髁突的同时复位而愈合。
