Surgical effects of various orbital decompression methods in thyroid-associated orbitopathy: Computed tomography-based comparative analysis

Kim, Kyoung Woo; Byun, Jun Soo; Lee, Jeong Kyu

doi:10.1016/j.jcms.2014.03.011

Cited by 27 publications

(28 citation statements)

References 26 publications

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“…Single-wall decompressions; however, can often result in an off-axis mobilization of the eye with resulting diplopia. This is most likely due to the fact that thyrotoxic ophthalmopathy tends to involve hypertrophy of the medial and inferior rectus muscles [ 6 7 8 ].…”

Section: Discussionmentioning

confidence: 99%

Quantitative Assessment of Orbital Volume and Intraocular Pressure after Two-Wall Decompression in Thyroid Ophthalmopathy

Park

Nam

Lee

et al. 2015

Arch Craniofac Surg

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BackgroundSurgical outcomes after orbital wall decompression have focused on the degree of exophthalmos and intraocular pressure. The aim of this research was to evaluate intraorbital volume using computed tomography (CT) images following two-wall decompression using a combined subcilliary and endoscopic approaches.MethodsA retrospective review was performed for all patients who had undergone the two-wall decompression method. The pre/postoperative CT images were used to evaluate changes in intraocular volume. Intraocular pressure was evaluated using applanation tonometry. Surgical details are discussed within the body of text.ResultsTwo-wall decompression thru the medial wall and floor was associated with an average intraorbital volume change of 7.3 cm3, with maximal accommodation up to 13 cm3. Changes in intraocular pressures were not statistically significant.ConclusionTwo-wall decompression was effective in accommodation of up to 13 cm3 of soft tissue herniation. There was no statistically significant association between changes in volume to pressure.

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Section: Discussionmentioning

confidence: 99%

Quantitative Assessment of Orbital Volume and Intraocular Pressure after Two-Wall Decompression in Thyroid Ophthalmopathy

Park

Nam

Lee

et al. 2015

Arch Craniofac Surg

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“…Exophthalmos, exorbitism, and enophthalmos are pathological changes in the globe-orbit relationship that are closely related to several orbital or craniofacial disorders, including orbital tumors, high axial myopia, Graves’ ophthalmopathy, and orbital fractures [3–5]. The evaluation of ocular protrusion is a critical part of orbital morphometry and plays important roles in preoperative planning and evaluation of postoperative outcomes of craniofacial and orbital surgery [6]. …”

Section: Introductionmentioning

confidence: 99%

What is the Main Potential Factor Influencing Ocular Protrusion?

Song

et al. 2017

Med Sci Monit

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BackgroundThe aim of the present study was to establish the normal-range orbital parameters and to explore the relationships between ocular protrusion and various orbital morphological factors.Material/MethodsA retrospective, non-comparative case series was conducted from January 2014 to December 2015. We recruited 56 subjects (112 orbits), including 27 males (21 to 87 years of age) and 29 females (22 to 88 years of age) in this study. Nine length measurements, 2 angle measurements, and 2 volume measurements of various aspects of the orbit were obtained using Mimics v18.0 software. The data were collected manually using a 3D measurement technique. Statistical analyses using t tests and Pearson’s correlation analyses were performed to evaluate the differences and relationships between the parameters, respectively.ResultsOcular protrusion in both sexes was closely related to the following values: orbital soft tissue volume (OSTV) (males: r=0.61, p<0.001; females: r=0.39, p=0.003), orbital soft tissue volume/bony orbital volume (OSTV/BOV) (males: r=0.90, p<0.001; females: r=0.87, p<0.001), orbital width (males: r=0.40, p=0.003; females: r=0.53, p<0.001), orbital height (males: r=0.29, p=0.038; females: r=0.45, p<0.001), and globe diameter (males: r=0.52, p<0.001; females: r=0.48, p<0.001). No differences were found between the right and left orbits.ConclusionsThe study provides insight into the potential factors that influence ocular protrusion, which include the OSTV/BOV ratio, the shape of the orbital aperture, and the ocular axial length. The results of orbital surgery can be made more predictable by accounting for these 3 factors. The database and regression formula might provide support for surgical planning in the future.

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“…Removing bone adjacent to a restricted muscle can cause or worsen deviation of the eye (Abramoff et al 2002). In lateral orbital wall decompression, the bone removal is almost behind the muscle cone compared to medial decompression where the bone removed is alongside the muscle (Kim et al 2014). Balanced orbital medial and lateral wall decompression is supposed to give less inferomedial displacement of the muscle cone and decreases the risk of postoperative diplopia (Graham et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Temporal hollowing and other adverse effects after lateral orbital wall decompression

Ueland

Haugen

Rødahl

2016

Acta Ophthalmologica

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Lateral orbital wall decompression has been considered a safe and effective procedure for treatment of TED. Serious side-effects are infrequent, but in rare circumstances, even blindness may occur. Less serious side-effects are relatively common. Among others, a significant number of the patients developed temporal hollowing after the procedure. The patients must be informed about the possible complications before surgery.

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Surgical effects of various orbital decompression methods in thyroid-associated orbitopathy: Computed tomography-based comparative analysis

Cited by 27 publications

References 26 publications

Quantitative Assessment of Orbital Volume and Intraocular Pressure after Two-Wall Decompression in Thyroid Ophthalmopathy

Quantitative Assessment of Orbital Volume and Intraocular Pressure after Two-Wall Decompression in Thyroid Ophthalmopathy

What is the Main Potential Factor Influencing Ocular Protrusion?

Temporal hollowing and other adverse effects after lateral orbital wall decompression

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