Computed tomography based analysis of the lamina papyracea variations and morphology of the orbit concerning endoscopic surgical approaches

Açar, Gülay; Büyükmumcu, Mustafa; Güler, İbrahim

doi:10.1016/j.bjorl.2018.04.008

Cited by 7 publications

(17 citation statements)

References 21 publications

(72 reference statements)

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“…Although statistically insignificant, there is a tendency of a greater size of lamina papyracea in males than in females. whereas for the average area of lamina papyracea in this study is the same as the study conducted by Açar et al, (1). Based on the analysis, the areas of the right and left lamina papyracea do not correlate with age.…”

Section: Discussionsupporting

confidence: 64%

“…Lamina papyracea (LP) is the weakest point of the orbital medial wall and perforation of the LP result in a risk of periorbital ecchymosis or emphysema, venous orbital hematoma, medial rectus injury, and blindness can occur (1,6). During endoscopic sinus surgery, the lower limit of the middle meatal antrostomy was the inferior nasal turbinate attachment to the lateral nasal wall.…”

Section: Discussionmentioning

confidence: 99%

“…Lamina papyracea (LP) is the weakest point of the orbital medial wall, which forms the connecting line between the paranasal sinuses and the orbit (1). Lamina papyracea articulates with the orbital plates of the superior frontal bone, maxillary and orbital processes of the inferior palatine bone, anterior lacrimal bone and posterior sphenoid (2).…”

Section: Introductionmentioning

confidence: 99%

“…During Endoscopic Sinus Surgery (ESS) that is important for the treatment of chronic rhinosinusitis and removal of sinonasal pathology, accidental LP injuries can occur (3,4). Shigeta et al, reported the prevalence of LP injuries in their prospective study was 5.8% (1,5). Recognizing CT images from normal LP anatomy allows assessment on the targets of ESS and reconstructive surgery, including careful planning, the use of additional surgical approaches, efficient clearance of ethmoid air cells on LP, avoiding injury, and obtaining the exact dimensions of the implant (6).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Lamina Papyracea Area and Ethmoid Sinus Volume in Indonesian Patients Undergoing Paranasal Sinus CT Scan

Wahyuni

Idris

Muis

et al. 2020

JKB

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Of the rhinosinusitis (CRS) patients, half of whom require surgical intervention. Functional endoscopic sinus surgery (FESS) is a standard treatment of CRS and sinonasal polyposis. Orbito-ocular complications can occur during FESS. The lamina papyracea (LP) is the weakest point of the medial wall of the orbit. The variability in the size and shape of the paranasal sinuses is important in the FESS procedure. The ethmoid sinus is the most complex paranasal sinuses. Preoperative evaluation using computed tomography (CT) is mandatory for all patients undergoing FESS. This study aimed to determine the lamina papyracea area and ethmoid sinuses volume in patients who underwent a CT scan of paranasal sinuses. This study was a descriptive study on 103 patients who underwent a CT scan of paranasal sinuses in the Radiology Department of Hasanuddin University General Hospital, Makassar, from January to August 2019. The lamina papyracea area and ethmoid sinus volume were measured based on age and gender. The results showed that the average of lamina papyracea size and ethmoid sinus volume was greater in males than in females. There was a correlation between age and posterior height of left lamina papyracea (p=0.02), but no correlation between ethmoid sinuses volume and age.

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Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Lamina Papyracea Area and Ethmoid Sinus Volume in Indonesian Patients Undergoing Paranasal Sinus CT Scan

Wahyuni

Idris

Muis

et al. 2020

JKB

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“…This anatomic landmarkers are supraorbital foramen, the anterior edge of flor of lacrimal fossa, frontozygomatic suture, lateral and infraorbital edges throughout ceiling of maxillary sinus, infraorbital foramen, junction point with this edge and medial margin. The area of the closed bone line drawn, provided that the medial edge passes through the bone line, is calculated automatically with the help of software (13,14) (Figure 4).…”

Section: Area Of Orbital Aperturamentioning

confidence: 99%

Türk popülasyonunda orbita’nın morfometrik analizi: MDBT çalışması

et al. 2022

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Objective: The orbit is an important cavity containing vision-related formations and important neurovascular structures, and adjacent to various regions. This study aimed to evaluation, by multidedector computed tomography (MDCT) images, the morphometry of orbit by examining its changes according to gender and body side, and developments according to age, in Turkish population. Materials and Methods: A total of 200 individuals’s (94 females,106 males;400 sides) MDCT images were evaluated. Images were examined according to the gender, body side, and the anatomical structures development. Results: The height, width and depth of the orbit were determined as 36.04±2.97 mm, 32.33±2.59 mm, 38.35±3.32 mm on the right side, 35.79±3.18 mm, 32.29±2.67 mm, 38.13±3.21 mm on the left side, respectively, in healthy subjects. The height and width of the orbit were found to be statistically significantly larger on both sides in men than in women (p˂0.05). Conclusion: Comprehensive information about the orbit and associated apertures is quite important for clinicians working in this area, damage to these structures can cause serious complications. In addition, determining the morphometry of the orbit can be used as an important parameter for determining gender, age and race in forensic medicine.

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Evaluation of lamina papyracea dehiscence with paranasal computed tomography

Deniz,

Tekinhatun

2024

Eur Arch Otorhinolaryngol

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Introduction The lamina papyracea is the thin line between the ethmoid sinus and the medial orbital wall. Knowledge of the presence of the lamina papyracea dehiscence (LPD) bears critical importance to prevent misdiagnosis of fractures at this level and to define the anatomy before sinonasal surgery, including Functional Endoscopic Sinus Surgery (FESS). The present study is therefore intended to determine the incidence of LPD in paranasal computed tomography, to identify its imaging characteristics in CT, and to compare with the literature. Materials and methods The current study included patients who underwent paranasal CT scanning for any reason in our clinic between January 2018 and January 2022. Patients were evaluated in terms of age, gender, and presence of LPD. Patients with dehiscence were evaluated in terms of age, gender, dehiscence localization (right, left), tissue at the level of dehiscence, dehiscence size, and dehiscence grade. Results 1000 patients with a mean age of 32. ± 16.3 (min = 18-max = 79) were included in the study. 20 patients (2%) were found to have LPD. Of those with LPD, 14 (70%) were grade 1, 4 (20%) were grade 2 and 2 (10%) were grade 3. Again of those with LPD, 14 (70%) had LPD localized on the right and 6 (30%) had LPD on the left. In 12 (60%) of the patients with LPD, herniated tissue was detected. Among these patients with herniation, fatty tissue herniation was observed in 10 (83.3%) and medial rectus muscle herniation was observed in 2 (16.7%). Discussion and Conclusion Comprehensive evaluation for and identification of LPD are very important before possible sinus surgery.

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Computed tomography based analysis of the lamina papyracea variations and morphology of the orbit concerning endoscopic surgical approaches

Abstract: Precise knowledge of the lamina papyracea anatomy using computed tomography is essential for safer and more effective surgery and preforming the dimensions of an implant. In this way, the postoperative complications can be decreased and the best outcome can be provided.

Cited by 7 publications

References 21 publications

Analysis of Lamina Papyracea Area and Ethmoid Sinus Volume in Indonesian Patients Undergoing Paranasal Sinus CT Scan

Analysis of Lamina Papyracea Area and Ethmoid Sinus Volume in Indonesian Patients Undergoing Paranasal Sinus CT Scan

Türk popülasyonunda orbita’nın morfometrik analizi: MDBT çalışması

Evaluation of lamina papyracea dehiscence with paranasal computed tomography

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