Risk Assessment of Isolated Single-Wall Orbit Fractures and Eye Injury.

INTRODUCTION: Ideally, all patients with isolated orbit fracture would undergo ophthalmologic evaluation before surgical intervention to rule out concomitant globe injury and possible vision loss. Unfortunately, not all institutions are capable of providing the evaluation before surgery. The authors hypothesize that the anatomic location of a single-wall orbit isolated orbit fracture can help predict the likelihood of ocular injury and thus identify high-risk patients who mandate ophthalmologic evaluation before surgical repair.

METHODS: A retrospective chart review was performed at a tertiary academic medical center using the institutional trauma registry for maxillofacial trauma. All subjects with an isolated single-wall orbit fracture were included in this study. Statistical analysis was performed using a Fisher exact test.

RESULTS: Two hundred seventy-nine subjects with orbit fractures were identified for inclusion in this study. Forty-one of the 279 (14.7%) subjects had isolated single-wall orbit fractures. Isolated single-wall fractures included orbit floor = 19 of 41 (46.3%), medial wall = 15 of 41 (36.6%), lateral wall = 4 of 41 (9.8%), and orbit roof = 3 of 41 (7.3%). Concomitant ocular injury (13 of 41, 31.8%) was associated with isolated orbit wall fractures as follows: orbit floor = 4 of 19 (21.1%), medial wall = 6 of 15 (40%), lateral wall = 2 of 4 (50%), and orbit roof = 1 of 3 (33.3%). A Fisher exact test demonstrated that there was no statistically significant association between individual isolated wall fractures and ocular injury (P = 0.5000).

CONCLUSIONS: Isolated orbit wall fractures are common in maxillofacial trauma and often require surgical repair. Concomitant ocular injury is common (31.8%) with this highest incidence occurring with lateral wall fractures (50%); however, statistical analysis did not demonstrate a significant relationship between the anatomic location of an isolated single-wall fracture and eye injuries.