Thapa Swosti, Wang Jun, Hu Hong-Tao, Zhang Fu-Gui, Ji Ping
Department of Oral and Maxillofacial Surgery, Chongqing Medical University, Chongqing 401147, China.
Open Dent J. 2017 Jun 30;11:294-300. doi: 10.2174/1874210601711010294. eCollection 2017.
Mandibular condylar fracture is one of the commonest maxillofacial fractures treated by maxillofacial surgeons. Demography of the patients, causation, and characteristics of the fracture depends on various socio-economic factors. Hence, maxillofacial surgeons should be familiar with epidemiology of mandibular condylar fracture.
This study retrospectively describes the demography, etiology, fracture characteristics, and hospital utilization of surgically treated mandibular condylar fractures in a tertiary referral hospital in urban China in past five years.
Data of all patients who underwent surgical management between 2011 and 2015 were collected. This included aetiology, characteristics of fracture, time, age, sex, associated injuries, and hospital utilization of 166 patients with 208 mandibular condylar fractures. These patients had undergone open reduction and internal fixation with either miniplates or lag screws. Among the fracture of head of mandibular condyle, 21.28% of the patients had the fracture segments removed. These data were statistically analyzed to describe the epidemiology of mandibular condylar fracture.
Most of the patients had unilateral mandibular condylar fractures (74.7%). Male patients (76.51%) outnumbered female patients (23.49%) in this cohort. The average age of the patients was 37 years. The fractures were mostly caused by fall from height (60.84%) and were located at the condylar neck (53.61%). Most of the patients had other associated maxillofacial injuries (71.08%) which were mostly located at symphysis and parasymphysis (44.59%). It took 12.58 +/- 0.35 days of hospitalization for the treatment.
Fall from height was the most prevalent cause of mandibular condylar injury in mountainous urban China. The people at highest risk were middle-aged men. Mandibular condylar fracture was mostly located at the condylar neck and was usually associated with fracture at the symphysis and parasymphysis.
下颌髁突骨折是颌面外科医生治疗的最常见的颌面骨折之一。患者的人口统计学特征、骨折的病因及特点取决于多种社会经济因素。因此，颌面外科医生应熟悉下颌髁突骨折的流行病学情况。
本研究回顾性描述了中国城市一家三级转诊医院过去五年中接受手术治疗的下颌髁突骨折患者的人口统计学特征、病因、骨折特点及住院情况。
收集了2011年至2015年间所有接受手术治疗患者的数据。这包括166例患者208处下颌髁突骨折的病因、骨折特点、时间、年龄、性别、合并伤及住院情况。这些患者均接受了微型钢板或拉力螺钉切开复位内固定术。在下颌髁突头部骨折患者中，21.28%的患者骨折段被切除。对这些数据进行统计学分析以描述下颌髁突骨折的流行病学情况。
大多数患者为单侧下颌髁突骨折（74.7%）。该队列中男性患者（76.51%）多于女性患者（23.49%）。患者的平均年龄为37岁。骨折大多由高处坠落所致（60.84%），且位于髁突颈部（53.61%）。大多数患者合并其他颌面损伤（71.08%），其中大多位于颏部及颏旁（44.59%）。治疗的住院时间为12.58±0.35天。
在中国城市山区，高处坠落是下颌髁突损伤的最常见原因。高危人群为中年男性。下颌髁突骨折大多位于髁突颈部，且常合并颏部及颏旁骨折。
