Orbital blowout fracture location in Japanese and Chinese patients

Abstract

Orbital blowout fractures in Japanese and Chinese individuals occur most commonly in the medial wall. This is in contrast to previous reports on white individuals, who tend to sustain fractures involving the orbital floor rather than the medial wall.

The Paradoxical Predominance of Medial Wall Injuries in Blowout Fracture

“…In contrast to other studies, the incidence of pure medial orbital blowout fractures has increased in Korea. [7][8][9] In March, 2015, there was one large-scale study about Chinese and Japanese blowout fracture type, 10 but there was still no large-scale study in Korean subjects as far as we know types in Korea.…”

Comparison of Blowout Fracture Sites Observed in Young and Elderly East Asians

“…Previous studies have reported that the distribution of blowout fracture sites differed according to races 5,10 . In black patients, the medial wall is the most frequent blowout fracture site, whereas orbital floor fracture is more common in Caucasian and Asian patients 5 .…”

“…18 The orbital medial wall is prone to fracture due to this buckling force compared with the orbital floor because it is much thinner. 4,8,10 Additionally, as orbital contents decrease with age, older patients are at a greater risk of experiencing impact on the orbital rim instead of the globe. 11,19 In contrast, young patients are injured most frequently from focal trauma like assault or contusion.…”

“…Recently, several studies have demonstrated differences in orbital fracture sites among age groups 9–11 . Choi et al 9 showed that patients younger than 18 years had a larger proportion of orbital floor fractures compared with those older than 18 years.…”

Application of three-dimensional printing technology in orbital floor fracture reconstruction

“…Orbital floor involvement is common in orbital blowout fracture (around 50%) [ 2 , 3 ]. Diplopia and enophthalmos are the indication for surgical reconstruction of floor defect.…”