scholarly journals Diplopia after Isolated Inferior Orbital Wall Fracture According to the Computed Tomography Findings

2021 ◽  
Vol 62 (10) ◽  
pp. 1324-1332
Author(s):  
Myungjin Kim ◽  
Seunghyun Lee ◽  
Helen Lew
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Fracture Site ◽  
Reconstruction Surgery ◽  
Computed Tomography Images ◽  
Single Vision ◽  
Postoperative Changes ◽  
Orbital Wall ◽  
Fracture Size ◽  
Binocular Single Vision

Purpose: To investigate the postoperative changes in diplopia and evaluate factors that affect diplopia after isolated inferior orbital wall fracture.Methods: A retrospective study was conducted on 200 patients who underwent reconstruction surgery for isolated inferior orbital wall fracture between March 2001 and December 2020. Diplopia was categorized into peripheral, central, and full-degree types based on the history and binocular single vision. The natural course of diplopia was analyzed pre-operatively and at 1 day, 6 weeks, and 6 months postoperatively. We analyzed the orbital computed tomography images to determine fracture size (small, medium, or large), fracture site (anterior, middle, posterior, or mixed), extraocular muscle (EOM) size (swelling or deformity), EOM site (incarcerated or prolapsed), and EOM tenting.Results: Diplopia was seen in 144 out of 200 patients (72.0%) before surgery; peripheral diplopia was seen in 57 patients (39.6%), central diplopia in 46 (24.3%), and full-degree diplopia in 20 (13.9%). Pre-operative diplopia differed according to the pre-operative limitation of range of motion (LOM) (p < 0.001) and EOM site (p = 0.022). Pre-operative diplopia type differed according to the LOM direction (p = 0.018) and EOM size (p = 0.020). Diplopia persisted in 33 patients (16.5%) 6 months after the surgery. Recovery was faster in patients with peripheral diplopia compared to those with central or full-degree diplopia.Conclusions: The presence of diplopia was associated with the pre-operative LOM and EOM site but the type of diplopia was associated with LOM direction and EOM size. These factors can be used to predict the progression of diplopia in patients with isolated inferior orbital wall fracture.

Postoperative Changes in Isolated Medial Orbital Wall Fractures Based on Computed Tomography

2017 ◽  
Vol 28 (8) ◽  
pp. 2038-2041 ◽  
Author(s):  
Soyeon Jung ◽  
Jang Won Lee ◽  
Chung Hun Kim ◽  
Euna Hwang ◽  
Hyoseob Lim ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Postoperative Changes ◽  
Orbital Wall ◽  
Medial Orbital Wall

scholarly journals Ratio of Simple versus Comminuted Lateral Wall Fractures of the Orbit

2013 ◽  
Vol 6 (4) ◽  
pp. 241-245
Author(s):  
Ruth J. Barta ◽  
Warren Schubert
Keyword(s):  
Computed Tomography ◽  
Lateral Wall ◽  
Teaching Hospitals ◽  
Primary Level ◽  
Computed Tomography Images ◽  
Comminuted Fracture ◽  
Orbital Wall ◽  
Comminuted Fractures ◽  
Level I ◽  
Greater Wing

Reduction of a fracture may be relatively easy with a simple, noncomminuted fracture along the zygomaticofrontal suture, zygomaticomaxillary buttress, or the inferior rim of the orbit. When one or more of these key landmarks is comminuted, it becomes more important to confirm that the fracture commonly seen between the greater wing of the sphenoid and the zygoma is properly repositioned. The zygomaticosphenoidal suture is an excellent landmark with a simple lateral orbital wall fracture (LOWF), but it may not be reliable in patients with a comminuted fracture. The purpose of this study is to determine the frequency that the lateral orbital wall (LOW) is a reliable landmark in the reduction of a zygoma fracture by determining the ratio between simple versus comminuted LOWF. To identify 100 patients with a LOWF, the authors reviewed consecutive midface computed tomography images of 877 patients performed over a 25-month period from one of our city's primary Level I trauma and teaching hospitals. A total of 121 LOWF were identified in 100 patients. In 60.3% of cases the facture was a simple, noncomminuted LOWF. In 39.7% of cases the fracture was comminuted ( p = 0.023). Simple LOWF are significantly more common than comminuted fractures. In 39.7% of fractures the LOW is comminuted. This suggests that there are many fractures in which other modalities may be much more important to use to confirm the proper reduction of the zygoma.

scholarly journals Characteristics of chest high resolution computed tomography images of COVID-19: A retrospective study of 46 patients

2021 ◽  
Vol 37 (3) ◽  
Author(s):  
Yibo Lu ◽  
Jingru Zhou ◽  
Yimei Mo ◽  
Shulin Song ◽  
Xue Wei ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
High Resolution ◽  
Ground Glass Opacity ◽  
Ct Images ◽  
Ground Glass ◽  
High Resolution Computed Tomography ◽  
Creative Commons ◽  
Computed Tomography Images ◽  
Clinical Records

Objective: To analyze the characteristics of chest high resolution computed tomography (CT) images of coronavirus disease 2019 (COVID-19). Methods: This is a retrospective study analyzing the clinical records and chest high-resolution CT images of 46 consecutive patients who were diagnosed with COVID-19 by nucleic acid tests and treated at our hospitals between January 2020 and February 2020. Results: Abnormalities in the CT images were found in 44 patients (95.6%). The lesions were unilateral in eight patients (17.4%), bilateral in 36 patients (78.3%), single in seven patients (15.9%), and multiple in 37 patients (84.1%). The morphology of the lesions was scattered opacity in 10 patients (21.7%), patchy opacity in 38 patients (82.6%), fibrotic cord in 17 patients (37.0%), and wedge-shaped opacity in two patients (4.3%). The lesions can be classified as ground-glass opacity in eight patients (17.4%), consolidation in one patient (2.2%), and ground-glass opacity plus consolidation in 28 patients (60.9%). Conclusion: Most COVID-19 patients showed abnormalities in chest CT images and the most common findings were ground-glass opacity plus consolidation. Abbreviations:COVID-19: coronavirus disease 2019, CT: computed tomography,SARS-CoV-2: severe acute respiratory syndrome coronavirus 2, RNA: ribonucleic acid. doi: https://doi.org/10.12669/pjms.37.3.3504 How to cite this:Lu Y, Zhou J, Mo Y, Song S, Wei X, Ding K. Characteristics of Chest high resolution computed tomography images of COVID-19: A retrospective study of 46 patients. Pak J Med Sci. 2021;37(3):---------. doi: https://doi.org/10.12669/pjms.37.3.3504 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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