儿童trapdoor眼眶骨折研究进展

trapdoor眼眶骨折是一特殊类型的爆裂性眼眶骨折。因儿童骨骼较成人更具弹性,故最常见于儿童。其发病机制、临床表现及治疗原则与成人爆裂性眼眶骨折均有明显区别。临床表现主要为眼球垂直位转动受限伴恶心、呕吐及眼球转动痛等。其眶部CT骨折不明显,常表现为线形骨折,眼外肌被箝闭于骨折处或下直肌走行路径发生变化。儿童trapdoor型眼眶骨折治疗应在确诊后早期手术治疗,避免因眼外肌被箝闭缺血导致永久性眼外肌功能障碍。

Research advances on orbital trapdoor fracture in the children

Orbital trapdoor fracture is a special kind of orbital blowout fracture,which is predominant in the pediatric for the reason that a large portion of the orbital floor is immature bone and more elastic than adult.It＇s pathogenesy,clinical manifestation and therapeutic principle is different from adult orbital blowout fracture.It＇s main clinical manifestation is limation of ocular motility in vertical position combined with nausea,vomiting.Fracture in coronal CT is linear fracture tissue is incarcerated in fructure,which is adapt to be missed.For patients with severe limitation of ocular motility,early surgery is critical to maximize clinical outcome.