下頜骨髁突骨折的臨床回顧研究
[Abstract]:Objective: to study the different classification and treatment methods of mandibular condylar fracture, and to provide theoretical basis and clinical guidance for the clinical treatment of condylar fracture. Methods: from January 2014 to August 2016, 93 patients (122 sides) with mandibular condylar fracture were treated by oral and maxillofacial surgery in the first affiliated Hospital of Zhejiang University Medical College. Methods of treatment, surgical approach, postoperative complications, clinical follow-up, statistical results and statistical analysis. Results among 93 cases (122 sides) of mandibular condylar fracture, male was a predilection group, and traffic accident was the main cause of condylar fracture. Three-dimensional reconstruction of mandible with CT is the best imaging method for the diagnosis of mandibular condylar fracture. Mandibular chin fracture is the most common condylar fracture associated with other fractures. Condylar fracture was the most common fracture classified by fracture site, accounting for 66.4%. In the 122 condylar fracture cases, 100 sides were treated surgically, 19 of the 82.0.81 sides were treated with conservative treatment. Among the other 41 cases of extracapsular fracture, 3 patients with subcondylar fracture without obvious displacement of fracture block were treated conservatively, and the rest were treated with small titanium plate. The anterior ear approach is mainly used for intra capsular fracture, posterior maxillary parotid approach and submandibular approach for condylar neck and subcondylar fracture, and ear ring approach for intracapsular fracture and condylar neck fracture. The opening degree of all kinds of fracture cases increased after operation. The occlusal disorder was found in 5 cases of condylar fracture complicated with other fracture after operation, and there was no statistical difference between the cases of condylar fracture and simple condylar fracture. There were 9 cases of open-type deviation after operation, but there was no statistical difference between each type of fracture. The rate of facial nerve injury in the anterior ear approach was the highest (21.9%), followed by the posterior maxillary parotid approach, the marginal approach was the smallest, the intraoral approach and submaxillary approach were only 1 case and 2 cases, and there was no significance compared with other approaches. Therefore, 4 patients with pain in the affected side of articular area and 2 patients with tension-closed temporomandibular joint elastic sound occurred absorption after operation of mandibular condylar fracture in 4 sides of mandibular condylar fracture. Conclusion: there are many classification methods and treatment methods for mandibular condylar fracture, but with the improvement of incision and internal fixation method and the development of fixation materials and surgical instruments, the indication of operation is gradually being relaxed. At present, the treatment of intra capsular fractures should be systematically evaluated according to the degree of displacement of the fractures, the reduction of the height of the mandibular ramus, whether there are fractures in other parts, the age of the patients, and the condition of the whole body. For condylar neck and subcondylar fractures, open treatment (open reduction and internal fixation) is recommended. No matter what treatment, minimal injury to restore joint anatomy and function is the basic principle that surgeons should follow through the most appropriate method.
【學(xué)位授予單位】:浙江大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:R782.4
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