关键词: 髁突骨折, 下颌骨骨折, 可吸收板, 可吸收螺钉, 适应证, 操作技巧

Abstract:

Objective　To retrospectively analyze clinical application of resorbable screws and plates in mandibular condylar fractures，and to explore indications，operation techniques，and consideration of resorbable screws and plates during the treatment of condylar fractures. Methods　Totally 82 cases （106 laterals） of condylar fractures were fixed by resorbable screws and plates in Department of Oral Maxillofacial Trauma and Temporomandibular Joint Surgery，Hospital of Stomatology，Wuhan University from July 2012 and June 2018. Of the 106 laterals，there were 46 condylar head fractures，26 condylar neck fractures，34 subcondylar fractures. Condylar head and neck fractures were treated through incisions before tragus，and most subcondylar fractures through incisions before tragus or submandibular approaches. Condylar sagittal fractures were fixed by 1-2 resorbable screws，and condylar neck fractures and subcondylar fractures were fixed by 2 resorbable plates. Postoperatively，the duration of follow-up ranged from six months to three years. Results　In all the fractures，there were no complaints of obvious discomfort；the face forms were symmetrical and facial muscle activities and occlusion were normal，mouth opening restored. All the fractures healed without foreign body reactions or serious complications. Conclusion　Resorbable screws and plates can be used in the internal fixation for condylar head，neck，and subcondylar fractures. The application of resorbable screws and plates is more complex than titanium plates and screws. It is necessary for doctors to master operation techniques and considerations of resorbable screws and plates.

Key words: condylar fracture, mandibular fracture, resorbable plate, resorbable screw, indication, operation technique