Reconstruction Experience Using Logarithmic Spiral Flap on the Nasal Sidewall

Bang, Chul Hwan; Lee, Hyunji; Han, Ju Hee; Lee, Ji Hyun; Lee, Jun Young; Yu, Dong; Park, Young Min

doi:10.5021/ad.2020.32.3.260

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…It can directly measure the internal diameter of organs. At the same time, combined with the relevant data of the narrowest part of the airway, it can measure the degree and diameter of the patient's trachea stenosis, simulate the original image, fully display the structure of the inner surface of the trachea and the lumen structure, and obtain more reliable information [ 17 ].…”

Section: Methodsmentioning

confidence: 99%

[Retracted] Clinical Application of Spiral CT Reconstruction Imaging in Patients with Tracheal Stenosis before Anesthesia

Dai

Yao

Xia

2022

Contrast Media & Molecular Imaging

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In order to solve the problem of CT reconstruction imaging, this paper presents a study on the clinical application of preanesthesia in patients with tracheal stenosis. Patients with tracheal stenosis and multislice spiral CT virtual endoscopy (CTVE) were diagnosed, and their application effects were analyzed. Methods. 60 patients with tracheal stenosis were selected for clinical observation. The patients were given tracheal stenosis examination and multislice spiral CT virtual endoscopy. The examination results of the two groups were compared and analyzed by statistical methods. Results. There was no significant difference in the detection rate, sensitivity, accuracy, and specificity between the two groups ( P > 0.05 ). Conclusion. Multislice spiral CT virtual endoscopy combined with a fiberoptic bronchoscope for clinical diagnosis of tracheal stenosis can complement each other. Combined use can effectively improve the detection consistency, and is safe and reliable. It can be used as an effective means for the diagnosis of tracheal stenosis.

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Section: Methodsmentioning

confidence: 99%

[Retracted] Clinical Application of Spiral CT Reconstruction Imaging in Patients with Tracheal Stenosis before Anesthesia

Dai

Yao

Xia

2022

Contrast Media & Molecular Imaging

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“… 4 A logarithmic spiral flap achieves better functional and cosmetic results in reconstruction of nasal alar defects. 5 , 6 The golden ratio, or Fibonacci sequence, is given in the formula F n = F n–1 + F n–2 (φ 2 =φ+1; φ is 1.618). 7 In this article, a theoretical logarithmic spiral flap, or a segmental approximation of it, 7 was designed using the golden rectangle (golden ratio flap).…”

Section: Introductionmentioning

confidence: 99%

Golden Ratio Flap Designed Using the Golden Ratio Rectangle

Sakamoto,

Fujita,

Noguchi

et al. 2024

Plastic and Reconstructive Surgery - Global Open

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Background: Rotation flaps are arcuate repairs that redistribute tension vectors and recruit adjacent and/or distant tissue laxity. The incision curve could be a logarithmic spiral curve to reduce the length of an incision. We propose a rotation flap—the golden ratio flap—designed using a golden rectangle. Methods: The flap incision is an arc though the major square which is beside the minor square of a golden rectangle. The defect is attached to the line of another minor square and diagonal to the major square. The bottom line runs from the incision end to the tangent point of the circle or the oval, and the perpendicular height line runs from the bottom line to the cross point of the flap incision. These parameters were analyzed retrospectively for four superficial sarcomas that were treated using a rotation flap with an incision approximating the logarithmic spiral curve. Results: The ratio of height to bottom of the golden ratio flap design was highly similar to the preoperative flap design in the four cases assessed. With the new design, the ratio of bottom to the defect diameter (minor axis in the oval defect) was 1.3, and for the height, it was 1.4. Conclusions: The golden ratio flap, designed using the golden rectangle, is reproducible. The parameters of height and bottom approximate the flap shape, or the length and width, respectively. For clinical applications, step-by-step guidance for drawing the new flap are also proposed.

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Reconstruction Experience Using Logarithmic Spiral Flap on the Nasal Sidewall

Cited by 2 publications

References 5 publications

[Retracted] Clinical Application of Spiral CT Reconstruction Imaging in Patients with Tracheal Stenosis before Anesthesia

[Retracted] Clinical Application of Spiral CT Reconstruction Imaging in Patients with Tracheal Stenosis before Anesthesia

Golden Ratio Flap Designed Using the Golden Ratio Rectangle

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