Abstract：
The stability provided by load-sharing miniplate osteosynthesis (LSMO) in dentate mandibular fractures (DMF) is usually adequate for bony healing. Non-union following LSMO is an uncommon complication. We aimed to determine the incidence and identify contributing factors, if any, of non-union amongst DMFs that have undergone LSMO. This retrospective case-control study with an allocation ratio of 1:3 includes cases of non-union DMF following LSMO and controls with healed DMF following LSMO over a five-year period. Relevant sociodemographic data, mandibular fracture characteristics, and treatment variables were collected for both groups. Of the 381 patients who underwent LSMO for DMFs, 12 cases of non-union were identified. The control group included 36 patients with uncomplicated healing. A significant association was observed between non-union and teeth in the line of fracture, postoperative infections, and time from injury to LSMO. The odds ratio with chronic alcohol usage was 1.4. Vigilant follow up of patients with chronic alcohol use, those with teeth in the fracture line, and adherence to LSMO principles may help to minimise the non-union complication.
摘要：
在齿状下颌骨骨折（DMF）中，载荷共享微型钢板接骨术（LSMO）提供的稳定性通常足以进行骨愈合。LSMO术后不愈合是一种罕见的并发症。我们的目标是确定发病率并确定影响因素，如果有的话,经历过LSMO的DMF之间的非工会。这项回顾性病例对照研究的分配比例为1：3，包括LSMO后不合并DMF的病例和LSMO后治愈DMF的对照病例，为期五年。相关社会人口统计数据，下颌骨骨折特点,并收集两组的治疗变量.在381名接受LSMO治疗的患者中，确定了12例不愈合。对照组包括36例无并发症愈合的患者。在骨折线中观察到不愈合和牙齿之间存在显着关联，术后感染,以及从受伤到LSMO的时间。长期饮酒的比值比为1.4。警惕慢性饮酒患者的随访，那些在骨折线有牙齿的人，坚持LSMO原则可能有助于最大限度地减少不愈合并发症。
