37Cases Of Mandibular Condyle Fracture Cases Retrospective Study

Objective: To investigate the etiology of a mandibular condylar neckfracture and to explore its related risk factors.2. Evaluation of mandibular condylar neck fracture surgery healing effect,observe and analyze the symptoms and causes of parotid approach bycondylar neck fracture surgery complications.3. Discussion of mandibular condyle fractures neck surgery, non-surgicaltreatment for mandibular condylar fracture of the neck to provide anobjective basis for choosing the best treatment.Methods and Materials:Mandibular condyle neck1. Material from the Sino-Japanese FriendshipHospital of Jilin University in January2010to September2014weretreated37cases of fracture during the hospitalized patients, statisticalgender, age, cause of injury, condylar fracture specific site, select thetreatment, whether or not combined with other fractures, whether thepresence of postoperative facial nerve damage and healing, mouthopening, mouth mandibular movement and the impact of prognosticfactors and other information.2. The37cases of patients met the following criteria:.. A before and after surgery were X-ray, CT scan or upper jaw, mandible three-dimensionalCT scan; b after six months of outpatient or telephone interviews; cdocumented cases of complete.3, the follow-up time and methodFollow-up information from the telephone follow-up and patient reviewdata, mainly for postoperative follow-up of occlusion and facial nervesymptoms of recovery. All patients were followed up for at least6months.4. Determine the degree of follow-mouthMild trismus: margin between the upper and lower incisors can be setonly two cross-refers, about2~2.5cm.Moderate trismus: margin between the upper and lower incisors can onlyset a cross-refers, about l~2cm.Severe trismus: upper and lower incisors edge less than a cross-refers,within about1cm.Complete trismus: can not open mouth.Results:Patients with mandibular condylar neck fractures in37cases, mostlymen, accounting for75.68%, mostly young adults, traffic accidents as themost important factor accounting for54.05%of injury. The mostcommon associated injuries to the jaw fractures and zygomatic complexfractures, accounting for27.03%, respectively,21.62%. Intracapsular condylar fractures fractures, extracapsular fractures accounted for70%and30%. Total23fractures rigid fixation, taken before surgical incisiontragus parotid approach,14cases treated conservatively surgical incisionin the mouth is the most common accounting for59.02%,23cases ofsurgical incisions healed well, does not appear parotid fistula, facialparalysis, and other serious complications. All patients six months afterlost3cases. Five cases of facial nerve injury caused mainly due tointraoperative traction temporary facial nerve injury, including3cases ofthe amount of grain shallow phenomenon, two cases appear incompleteeyelid closure, gradually returning to normal after symptomatic treatment;7cases with poor occlusion and two cases of limited openings,postoperative surgery with arch between traction splint jaw and mouthtraining,2to4weeks after the gradual recovery, fracture healing well,basic good occlusion, mouth without limitation, normal mouth openingthe results were satisfactory.In conclusion:1. Accidents are the main factors leading to the mandibular condylar neckfractures; mandibular condylar fracture incidence of major population20-40years old young men; the more jaw fractures associated injuriesand fractures of the zygomatic complex The most common, suggestingthat the traffic conditions in Northeast China is relatively backward,traffic injuries to a higher proportion of maxillofacial fractures. 2. Before the tragus by the parotid incision surgery can be performedcondylar neck fractures, surgical incisions hidden, easy to operate,revealing the most direct occlusion good recovery, fewer complications,facial nerve injury, is an ideal surgical approach.