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Using Computed Tomography: Predictive Factors for Recovery Time in Patients with Orbital Fracture with Diplopia
복시가 동반된 안와골절환자에서 안와 전산화단층촬영 소견에 따른 수술 후 복시 회복기간 예측
JKOS 2019 Jun;60(6):501-9
Published online June 15, 2019;
Copyright © 2019 The Korean Ophthalmological Society.
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Jong Ho Ahn, MD, Su Jin Park, MD, Mi Jung Chi, MD, PhD

Department of Ophthalmology, Gachon University Gil Medical Center, Incheon, Korea
가천대학교 길병원 안과학교실
Received November 22, 2018; Revised February 14, 2019; Accepted May 18, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Purpose: To identify predictive factors for recovery time in patients with orbital fracture with diplopia through analysis of preoperative and postoperative computed tomography (CT) images and postoperative recovery time.
Methods: We retrospectively analyzed CT findings-preoperative: fracture size, type of fracture, fracture site, extraocular muscle (EOM) swelling, EOM and soft tissue injury, and the amount of soft tissue herniation; post-operative: degree of enophthalmos, and diplopia recovery period in 379 patients who underwent surgical treatment for orbital fracture between March 2006 and December 2015.
Results: The average postoperative follow-up period was 556.2 ± 59.5 days, and the mean duration of recovery was 23.9 ± 42.5 (range, 3-186) days. The recovery time of diplopia was significantly increased with the following preoperative CT findings: fracture size (small and medium < large) (p = 0.049), type of fracture (linear < hinge < comminuted, trap-door) (p < 0.01), fracture site (inferior < medial and both) (p < 0.01), EOM and soft tissue injury (prolapse and torsion, muscle entrapment, kinked muscle) (p < 0.01), and the amount of soft tissue herniation (small and medium < large) (p < 0.001). The mechanism of injury, sex, age, and the degree of enophthalmos were not related to the length of the diplopia recovery period.
Conclusions: The length of diplopia recovery could be predicted by CT findings.
Keywords : Computed tomography, Diplopia, Orbital fracture


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