Transection of Inferior Orbital Fissure Contents for Improved Access and Visibility in Orbital Surgery

Ricketts, Sophie; Chew, Hall F.; Sunderland, Ian R. P.; Kiss, Alex; Fialkov, Jeffrey A.

doi:10.1097/scs.0000000000000489

Cited by 7 publications

(1 citation statement)

References 17 publications

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“…63 The contents of the inferior orbital fissure may be transected without significant morbidity if required to improve visualization of the bony ledges in the deep posterior bony orbit. 61,64,65 If complete circumferential dissection has been performed and there is still inadequate mobility, careful incremental release of the periosteum can be performed by transverse scoring.…”

Section: Ementioning

confidence: 99%

Current Management of Late Posttraumatic Enophthalmos

DeSerres

Budning

Antonyshyn

2022

Plastic &Amp; Reconstructive Surgery

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Learning Objectives: After studying this article, the participant should be able to: 1. Describe the orbital anatomy and completely understand the important components relevant to surgical correction of enophthalmos, including oculo-orbito relations. 2. Understand the pathophysiology and predictive factors for posttraumatic enophthalmos and identify the challenges associated with correction of enophthalmos in the late setting. 3. Develop a surgical plan for late enophthalmos repair and understand the value and utility of osteotomies, intraoperative navigation, and patient-specific implants. 4. Discuss the expected outcomes, possible complications, and adjunctive surgery as related to late enophthalmos repair. Summary: This article addresses the current management of late posttraumatic enophthalmos. In this article, the authors describe surgically relevant orbital anatomy and oculo-orbital relations, the pathophysiology of enophthalmos, clinical and radiologic findings, decision-making in management, and surgical treatment. The authors attempt to cover some of the main challenges and recent advances in the management of late posttraumatic enophthalmos, including intraoperative navigation and patient-specific implants.

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Section: Ementioning

confidence: 99%

Current Management of Late Posttraumatic Enophthalmos

DeSerres

Budning

Antonyshyn

2022

Plastic &Amp; Reconstructive Surgery

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Mechanisms of Visual Loss from Orbital Cellulitis

Chamberlain

Foroozan

2017

Orbital Cellulitis and Periorbital Infections

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Redesign and treatment planning orbital floor reconstruction using computer analysis anatomical landmarks

Özer

Gövsa

Kazak

et al. 2015

Eur Arch Otorhinolaryngol

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Orbital floor fractures are one of the most commonly encountered maxillofacial fractures due to their weak anatomical structure. Restoration of the orbital floor following a traumatic injury or a tumor surgery is often difficult due to inadequate visibility and lack of knowledge on its anatomical details. The aim of this study is to investigate the locations of the inferior orbital fissure (IOF), infraorbital groove (G), and infraorbital foramen (Fo) and their relationship with the orbital floor using a software. Measurements from the inferior orbital rim (IOR) using the Fo, the IOF, G, and the optic canal (OC) were calculated in 268 orbits as reference points. The surgical landmarks from the G and the OC, the G and the IOF, the G and the intersection point were measured as 31.6 ± 6, 12.9 ± 4, and 12 ± 5 mm, respectively. The mean distances between the G and the IOR, the Fo and the IOF, and the Fo and the OC were found as 8.3 ± 2.1, 28.7 ± 3.5, and 53.6 ± 5.9 mm, respectively. The mean angles were calculated as OC-IOF-G 68.1° ± 16.4°; intersection-G-IOF as 61.4° ± 15.8°; IOF-OC-G as 19° ± 5.5°; OC-G-intersection as 31.5° ± 11.9°, G-intersection-OC as 129.5°, IOF-intersection-G as 50.5°. Furthermore, variable bony changes on the orbital floor which may lead to the differences at intersection point of the G and Fo were determined. In 28 specimens (20.9 %), unilateral accessory Fo (AcFo) was present. In 27 specimens, AcFo was situated supermaedially (96.4 %) on the main aperture. In one specimen, two intraorbital canals and Fo emerged from different points and coursed into different apertures. The measured mean distances of the AcFo-IOR and the AcFo-Fo were as 7 ± 2 and 7.3 ± 3.2 mm, respectively. The primary principle in the oculoplastic treatment of orbital floor reconstructions must be repositioning the herniated orbital aperture by maintaining the infraorbital artery and the nerve in the orbital floor. The IOF and the G were recommended as the more reliable oculoplastic surgical landmarks for identifying the orbital floor. To avoid pinching of the orbital floor structures, the triangle (IS-G-IOF) should be equilateral with an exigence of a 70° angle within it. Among each distance of the intersection-IOF, IOF-G, G-intersection should be equal. With the help of certain software, this study made possible to investigate the variability of the orbital floor structures, observe the variety in measurements and calculate the parameters which are crucial in implementing personalized reconstruction and implanting support.

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Transection of Inferior Orbital Fissure Contents for Improved Access and Visibility in Orbital Surgery

Cited by 7 publications

References 17 publications

Current Management of Late Posttraumatic Enophthalmos

Current Management of Late Posttraumatic Enophthalmos

Mechanisms of Visual Loss from Orbital Cellulitis

Redesign and treatment planning orbital floor reconstruction using computer analysis anatomical landmarks

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