Characterization of the orbital volume in normal population

Andrades, Patricio; Cuevas, Pedro; Hernández, Rodrigo; Danilla, Stefan V.; Villalobos, Rodrigo

doi:10.1016/j.jcms.2018.02.003

Cited by 37 publications

(39 citation statements)

References 28 publications

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“…35 A difference in the OV of 8% between the normal volumes of both orbits of the same patient has been recorded 17 , 36 but, in most cases, this difference is not significant. 37…”

Section: To Predict Posttraumatic Enophthalmosmentioning

confidence: 99%

Overview of tools for the measurement of the orbital volume and their applications to orbital surgery

Sentucq

Schlund

Bouet

et al. 2021

Journal of Plastic, Reconstructive & Aesthetic Surgery

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“…35 A difference in the OV of 8% between the normal volumes of both orbits of the same patient has been recorded 17 , 36 but, in most cases, this difference is not significant. 37…”

Section: To Predict Posttraumatic Enophthalmosmentioning

confidence: 99%

Overview of tools for the measurement of the orbital volume and their applications to orbital surgery

Sentucq

Schlund

Bouet

et al. 2021

Journal of Plastic, Reconstructive & Aesthetic Surgery

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“…Alhamdani et al (2015) descrevem a diplopia como a repercussão clínica mais frequente após trauma em órbita. Andrades et al (2018) após análises das alterações clínicas e abordagens terapêuticas, relatam que distopia de mais de 02 milímetros pode ser observada clinicamente, auxiliando na decisão da cirurgia.…”

Section: Resultsunclassified

“…Uma correlação positiva vem sendo encontrada em muitos estudos, entre o volume orbitário e o grau de enoftalmia. Andrades et al (2018) em seu estudo, cujo objetivo foi analisar o volume orbitário e a relação clínica no processo de tomada de decisão, descreveram que para cada aumento de 01 cc no volume orbitário, há aproximadamente 01 milímetro de enoftalmia.…”

Section: Resultsunclassified

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Correlação entre o aumento do volume orbitário pós trauma em face e as repercussões clínicas

Neves

Silva

Brito

et al. 2021

RSD

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As fraturas orbitárias transcorrem com considerável frequência e quando há o envolvimento das suas paredes, geralmente observam-se mudanças no volume orbitário, que resultam em diversas alterações clínicas. Objetiva-se por meio desse estudo, correlacionar o aumento do volume orbitário, pós-trauma em face, com as alterações clínicas observadas, enfatizando a influência dessas variáveis na tomada de decisão sobre a intervenção terapêutica mais adequada. Realizou-se um levantamento bibliográfico nas principais bases de dados online, por meio dos descritores: Órbita, Fraturas Ósseas, Tomografia e Cirurgia Maxilofacial, contemplando artigos completos de pesquisa, revisão, e ainda, relatos de caso, publicados nos últimos 5 anos (2015-2020), nos idiomas inglês, português e espanhol. Por meio do estudo, tornou-se claro que as fraturas orbitais representam 40% de todas as fraturas faciais, podendo esse percentual aumentar quando há o envolvimento de outros ossos articulados. Evidenciou-se a existência de uma correlação positiva entre o aumento de volume orbitário e a ocorrência de algumas alterações clínicas. Com relação a escolha do tratamento apropriado para a correção das deformidades, compreendeu-se que características clínicas e radiográficas devem ser observadas, sendo a diplopia, distopia, enoftalmia, exolftalmia, oftalmoplegia e lesão nervosa as principais alterações clínicas. Dessa maneira, conclui-se que o aumento volumétrico influencia diretamente as repercussões clínicas pós-traumas em face, devendo ser considerado no processo decisões terapêuticas, que podem ser cirúrgicas ou conservadoras.

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“…The absence of polymers in the CT image due to metal artifacts also should be considered as a source of error. In general, the difference in the protrusion of the eyes of normal people is known to be within 2 mm (Migliori and Gladstone, 1984;Kook et al, 2003;Andrades et al, 2018). Hejazi N noted that the deviation of about 1-2 mm is negligible because the eye movement is in the mm range in orbital surgery (Hejazi, 2006).…”

Section: Discussionmentioning

confidence: 99%

Accuracy of 3D printed guide for orbital implant

Kwon

Kim²,

Kang

et al. 2020

RPJ

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Purpose Extrinsic trauma to the orbit may cause a blowout or orbital fracture, which often requires surgery for reconstruction of the orbit and repositioning of the eyeball with an implant. Post-operative complications, however, are high with the most frequent cause of complications being a mismatch of the position and shape of the implant and fracture. These mismatches may be reduced by computed tomography (CT) based modeling and three-dimensional (3D) printed guide. Therefore, the aim of this study is to propose and evaluate a patient-specific guide to shape an orbital implant using 3D printing. Design/methodology/approach Using CT images of a patient, an orbital fracture can be modeled to design an implant guide for positioning and shaping of the surface and boundaries of the implant. The guide was manufactured using UV curable plastic at 0.032 mm resolution by a 3D printer. The accuracy of this method was evaluated by micro-CT scanning of the surgical guides and shaping implants. Findings The length and depth of the 3D model, press-compressed and decompressed implants were compared. The mean differences in length were 0.67 ± 0.38 mm, 0.63 ± 0.28 mm and 0.10 ± 0.10 mm, and the mean differences in depth were 0.64 ± 0.37 mm, 1.22 ± 0.56 mm and 0.57 ± 0.23 mm, respectively. Statistical evaluation was performed with a Bland-Altman plot. Originality/value This study suggests a patient-specific guide to shape an orbital implant using 3D printing and evaluate the guiding accuracy of the implant versus the planned model.

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Characterization of the orbital volume in normal population

Cited by 37 publications

References 28 publications

Overview of tools for the measurement of the orbital volume and their applications to orbital surgery

Overview of tools for the measurement of the orbital volume and their applications to orbital surgery

Correlação entre o aumento do volume orbitário pós trauma em face e as repercussões clínicas

Accuracy of 3D printed guide for orbital implant

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