Abstract: Objective To introduce different kinds of treatment for temporomandibular joint tubercle fracture.Methods According to fracture line in orbital axial CT, 35 cases of temporomandibular joint tubercle fracture were preoperatively devided into two types: sagital type and oblique type. Coronal incision was applied and temporomandibular joint tubercle fracture was reduced and fixed using one or two microscrews or microplates during operation. Orbital axial CT and coronal CT, three-dimension CT scan were performed in all cases preoperatively and postoperatively. Preoperative CT was compared with postoperative CT.Results Microplate fixation was applied for 24 cases, one microscrew fixation for 8 cases, two microscrews fixation for 3 cases. All the temporomandibular joint tubercle fractures were reduced correctly. Facial configuration of all the patients were restored and symmetrical.Conclusion The normal anterior and lateral of zygomatic process was resered after temporomandibular joint tubercle fracture reducing. Different methods of fixation were applied in accordance with exposure of fracture and types of fracture line.

Key words: zygomatic complex fracture, joint, internal fixation