The efficacy of N-2-butyl cyanoacrylate in the fixation of nasal septum to the anterior nasal spine in rabbits: experimental study

Background. With the current lack of clinically relevant classification methods of septal deviation, computer-generated models are important, as septal cartilage is indistinguishable on current imaging methods, making preoperative planning difficult. Methods. Three-dimensional models of the septum were created from a CT scan, and incremental forces were applied. Results. Regardless of the force direction, with increasing force, the septum first tilts (type I) and then crumples into a C shape (type II) and finally into an S shape (type III). In type I, it is important to address the dislocation in the vomer-ethmoid cartilage junction and vomerine groove, where stress is concentrated. In types II and III, there is intrinsic fracture and shortening of the nasal septum, which may be dislocated off the anterior nasal spine. Surgery aims to relieve the posterior buckling and dislocation, with realignment of the septum to the ANS and possible spreader grafts to buttress the fracture sites. Conclusion. By identifying clinically observable septal deviations and the areas of stress concentration and dislocation, a straighter, more stable septum may be achieved.

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A novel and cost-effective technique for securing the nasal septum to the anterior nasal spine in septoplasty and/or rhinoplasty surgery

JPRAS Open ◽

10.1016/j.jpra.2019.06.001 ◽

2019 ◽

Vol 21 ◽

pp. 43-47

Author(s):

Navdeep Bhamra ◽

Adnan Darr ◽

Foteini Neamonitou ◽

James Barraclough

Keyword(s):

Nasal Septum ◽

Cost Effective ◽

Effective Technique ◽

Anterior Nasal Spine ◽

Cost Effective Technique

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Recent graft materials in experimental study stage used in the treatment of nasal septum perforation: a review

Scripta Scientifica Medica ◽

10.14748/ssm.v0i0.7855 ◽

2021 ◽

Vol 53 (2) ◽

pp. 7

Author(s):

Serdal Celik ◽

Yasemin Gunduz ◽

M. Tayyar Kalcioglu

Keyword(s):

Experimental Study ◽

Nasal Septum ◽

Septum Perforation ◽

Nasal Septum Perforation

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Histopathological effects of septoplasty techniques on nasal septum mucosa: an experimental study

European Archives of Oto-Rhino-Laryngology ◽

10.1007/s00405-018-5226-7 ◽

2018 ◽

Vol 276 (2) ◽

pp. 421-427 ◽

Cited By ~ 2

Author(s):

Semih Ozdemir ◽

Hatice Celik ◽

Ceyhun Cengiz ◽

Naciye Dilara Zeybek ◽

Elham Bahador ◽

...

Keyword(s):

Experimental Study ◽

Nasal Septum ◽

Histopathological Effects

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Relationship of the posterior septal angle to the anterior nasal spine in the Caucasian nasal septum

The Journal of Laryngology & Otology ◽

10.1017/s0022215119000185 ◽

2019 ◽

Vol 133 (03) ◽

pp. 224-226

Author(s):

S Goh ◽

D Karamchandani ◽

S Anari

Keyword(s):

Nasal Septum ◽

Anterior Part ◽

Poor Quality ◽

Inclusion Criteria ◽

Previous Surgery ◽

Male And Female ◽

Computed Tomography Images ◽

Anterior Nasal Spine ◽

The Mean ◽

Relationship Of

AbstractObjectiveThis study aimed to determine the distance between the most anterior part of the anterior nasal spine and the posterior septal angle.MethodsSinus computed tomography images from February to April 2016 were retrospectively analysed. Scans from adult Caucasians were included. Those with evidence of previous surgery, large slices or poor quality were excluded. The distance between the posterior septal angle and the most anterior part of the anterior nasal spine was measured digitally by two independent raters.ResultsOf 122 scans, 100 met the inclusion criteria (49 males and 51 females; mean age of 52.5 years). The mean distance measured was 5.13 mm (standard deviation = 1.24 mm, range = 1.85–8.00 mm). Measurements between male and female patients were not significantly different (t=0.450, p=0.654, 95 per cent confidence interval = -0.382 to 0.606).ConclusionThere is variability in the distance between the anterior nasal spine and the posterior septal angle. Surgeons should observe this relationship intra-operatively to avoid instability and unintended aesthetic changes.

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Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010013955x ◽

1995 ◽

Vol 53 ◽

pp. 636-637

Author(s):

Norio Baba ◽

Norihiko Ichise ◽

Syunya Watanabe

Keyword(s):

Experimental Study ◽

Spherical Aberration ◽

Incident Beam ◽

Optical Parameters ◽

Beam Tilting ◽

Illumination Method ◽

Restoration Method ◽

Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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