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Nasal reconstruction

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https://www.readbyqxmd.com/read/28445200/the-nasal-tip-rotation-flap-for-reconstruction-of-the-lateral-nasal-tip-anterior-ala-and-soft-triangle-the-authors-experience-with-55-patients
#1
Anastasia Benoit, S Tyler Hollmig, Brian C Leach
BACKGROUND: Defects of the lateral nasal tip, anterior ala, and soft triangle subunits lack reconstructive options that are consistently satisfactory. For such defects, the novel anterior-based nasal tip rotation flap provides functional and aesthetic results in a single operative session. OBJECTIVE: To describe the authors' experience with the nasal tip rotation flap, including patient selection and design modifications to enhance aesthetic success. METHODS: An IRB-approved retrospective database review of nasal tip rotation flap repairs was performed at the Medical University of South Carolina and Stanford University Medical Center...
April 24, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28420435/comparison-of-the-mechanical-properties-of-different-skin-sites-for-auricular-and-nasal-reconstruction
#2
M F Griffin, B C Leung, Y Premakumar, M Szarko, P E Butler
BACKGROUND: Autologous and synthetic nasal and auricular frameworks require skin coverage. The surgeon's decides on the appropriate skin coverage for reconstruction based on colour matching, subcutaneous tissue thickness, expertise and experience. One of the major complications of placing subcutaneous implants is the risk of extrusion (migration through the skin) and infection. However, knowledge of lessening the differential between the soft tissue and the framework can have important implications for extrusion...
April 18, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28418700/three-dimensional-analysis-of-upper-airway-morphology-in-skeletal-class-iii-patients-with-and-without-mandibular-asymmetry
#3
Xi Wen, Xiyu Wang, Shuqi Qin, Lorenzo Franchi, Yan Gu
OBJECTIVE: To compare the three-dimensional (3D) morphology of the upper airway in skeletal Class III patients with and without mandibular asymmetry and to investigate the possible underlying correlations between the morphology of the upper airway and mandibular deviation. MATERIALS AND METHODS: Cone-beam computed tomography images of 54 subjects with skeletal Class III malocclusion (ANB angle ≤ 0.4°, Wits ≤ -5.5°) were taken and 3D upper airway models were reconstructed using Dolphin 3D software...
April 18, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28418453/association-of-increasing-nasal-tip-projection-with-lip-position-in-primary-rhinoplasty
#4
Eric W Cerrati, Steven H Dayan
Importance: The effects of rhinoplasty maneuvers on adjacent facial features are an important component in preoperative planning and patient counseling. Tip projection modifications are commonly performed in both cosmetic and reconstructive rhinoplasty. Objective: To evaluate the subsequent change in lip projection that results from increasing nasal tip projection. Design, Setting, and Participants: In this case series, 20 patients underwent primary rhinoplasty with the objective of increasing tip projection during the period from October 1, 2014, to September 25, 2015...
April 13, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28417258/in-vivo-facial-soft-tissue-depths-of-a-modern-adult-population-from-germany
#5
Nicolle Thiemann, Volker Keil, Uwe Roy
Forensic facial reconstruction may be the final option available to draw public attention in cases where the identity of an individual cannot be established by standard identification methods. Two fundamental components of all forensic facial reconstruction techniques are cranial morphology and soft tissue depth databases. The purpose of this study was to extend such databases by providing a complete set of accurate facial soft tissue thickness measurements, acquired from a contemporary adult population from Germany...
April 17, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28414873/influence-of-pharyngeal-airway-respiration-pressure-on-class-ii-mandibular-retrusion-in-children-a-computational-fluid-dynamics-study-of-inspiration-and-expiration
#6
T Iwasaki, H Sato, H Suga, Y Takemoto, E Inada, I Saitoh, K Kakuno, R Kanomi, Y Yamasaki
OBJECTIVES: To examine the influence of negative pressure of the pharyngeal airway on mandibular retraction during inspiration in children with nasal obstruction using the computational fluid dynamics (CFD) method. SETTING AND SAMPLE POPULATION: Sixty-two children were divided into Classes I, II (mandibular retrusion) and III (mandibular protrusion) malocclusion groups. MATERIAL AND METHODS: Cone-beam computed tomography data were used to reconstruct three-dimensional shapes of the nasal and pharyngeal airways...
May 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28403008/a-new-design-for-reconstruction-about-nasal-dimensions-during-the-primary-repair-of-unilateral-cleft-lip
#7
Ren-Kai Liu, Cheng-Hao Li, Jiayu Shi, Bing Shi
No abstract text is available yet for this article.
February 15, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28395362/phylogenetic-analysis-and-molecular-characterization-of-xanthium-sibiricum-using-dna-barcoding-pcr-rflp-and-specific-primers
#8
Salvatore Tomasello, Günther Heubl
The fruits of Xanthium sibiricum have been widely used in traditional Chinese medicine for the treatment of nasal sinusitis and headaches. The genus Xanthium (cocklebur) is a taxonomically complex genus. Different taxonomic concepts have been proposed, some including several species, others lumping the different taxa in a few extremely polymorphic species. Due to the morphological similarities between species, the correct authentication of X. sibiricum is very difficult. Therefore, we established a polymerase chain reaction-restriction fragment length polymorphism method and diagnostic PCR based on nuclear internal transcribed spacer and chloroplast trnQ-rps16 barcodes to differentiate X...
April 10, 2017: Planta Medica
https://www.readbyqxmd.com/read/28391532/outcome-of-a-graduated-minimally-invasive-facial-reanimation-in-patients-with-facial-paralysis
#9
Laura C Holtmann, Anja Eckstein, Kerstin Stähr, Minzhi Xing, Stephan Lang, Stefan Mattheis
Peripheral paralysis of the facial nerve is the most frequent of all cranial nerve disorders. Despite advances in facial surgery, the functional and aesthetic reconstruction of a paralyzed face remains a challenge. Graduated minimally invasive facial reanimation is based on a modular principle. According to the patients' needs, precondition, and expectations, the following modules can be performed: temporalis muscle transposition and facelift, nasal valve suspension, endoscopic brow lift, and eyelid reconstruction...
April 8, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28388799/dorsal-augmentation-using-autologous-costal-cartilage-or-microfat-infused-soft-tissue-augmentation
#10
Dean M Toriumi
Costal cartilage grafting is increasing in popularity with increased demand for augmentation rhinoplasty and increased need for grafting material for structure rhinoplasty techniques. Use of costal cartilage for dorsal grafting is both art and science. The art is demonstrated in the act of carving a dorsal graft that will reflect the actual contour of the nasal dorsum. The science is linked to the methodology of how the grafts are contoured to match the patient's desires and how the graft is fixed to the bony dorsum to minimize the risk of warping and displacement...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28388797/dorsal-augmentation-with-homologous-rib
#11
Russell W H Kridel, Angela K Sturm
Dorsal augmentation grafts are used to reconstruct and raise the nasal dorsum in patients with dorsal saddling due to trauma, infection, or previous nasal surgery, as well as in patients with a narrow, congenitally low, and/or wide dorsum. Alloplastic implants and various biomaterials are available for grafting, each with advantages and disadvantages. Although autologous septal cartilage is a preferable and often convenient source of cartilage, it is frequently not sufficient for large volume dorsal augmentation, nor is it available in patients who have had septoplasty, infection, previous rhinoplasty with grafting, or significant trauma...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28388794/correcting-deviations-of-the-lower-third-of-the-nose
#12
Sami P Moubayed, Sam P Most
By convention, a "deviated nose" is one in which the lower third is asymmetric with regard to the midline. The lower third of the nose is composed of the lower cartilages, as well as the dorsal and caudal nasal septum. Not only does the deviated nose cause a cosmetic deformity that is often disconcerting for patients, but it may also be associated with functional problems. Airway obstruction may result from a narrowed internal nasal valve in the middle third or from a deviated caudal septum in the lower third...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28388792/midvault-reconstruction-in-primary-rhinoplasty
#13
Shannon Rudy, Sami P Moubayed, Sam P Most
The nasal midvault is an important consideration in rhinoplasty. This region is defined by the attachment of the upper lateral cartilages (ULCs) to the nasal bones superiorly and the cartilaginous septum medially. Inadequate management of the nasal midvault can have negative functional and aesthetic ramifications. Indications for midvault reconstruction in primary rhinoplasty include a narrow midvault, dorsal hump resection, a deviated midvault, and an asymmetric midvault, with an additional relative indication of zone 1 lateral wall insufficiency (LWI), defined as dynamic collapse of a weakened lateral nasal wall at the level of the ULC...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28384725/predictions-of-optic-nerve-traction-forces-and-peripapillary-tissue-stresses-following-horizontal-eye-movements
#14
Xiaofei Wang, Liam K Fisher, Dan Milea, Jost B Jonas, Michaël J A Girard
Purpose: To use finite element (FE) analysis to predict the optic nerve sheath traction forces that act on the optic nerve head (ONH) following horizontal eye movements, and the resulting stress levels in the peripapillary connective tissues of the ONH (Bruch's membrane [BM] and sclera). Methods: An FE model of a healthy eye was reconstructed in primary gaze position that included details from the orbital and ONH tissues. Optic nerve sheath traction forces and peripapillary tissue stresses in both adduction and abduction (13°) were computed using FE analysis...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28376026/simplifying-the-forehead-flap-for-nasal-reconstruction-a-review-of-420-consecutive-cases
#15
Kyle Sanniec, Menyoli Malafa, James F Thornton
BACKGROUND: The forehead flap is an important tool in nasal reconstruction. We present objective data and recommendations based on over a decade of consecutive forehead flap nasal reconstructions performed by the senior author (J.F.T.). Additionally, we separate the technique into its individual steps and provide details of his approach to each. METHODS: We performed a retrospective analysis of patients who underwent nasal reconstruction with forehead flap over a ten-year period by the senior author (J...
April 1, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28375969/elongated-dorsal-nasal-flap-to-reconstruct-large-defects-of-the-nose
#16
Pedro Redondo, Isabel Bernad, Ester Moreno, Marta Ivars
BACKGROUND: The typical reconstructive option for closing large-sized defects of the distal half of the nose is the paramedian forehead flap. Other alternatives are a melolabial interpolation flap and bilobed or trilobed flaps. The dorsal nasal (Rieger) flap is suitable for closing small-sized defects at this location, especially when they are medially located. OBJECTIVE: The authors describe a modified dorsal nasal flap reconstruction for large nasal defects. The novelty of this study lies in lengthening the leading edge of flap rotation, which may provide tissue either from the adjacent nasal skin, the nasofacial groove, or the cheek...
April 3, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28370229/more-than-just-the-helix-a-series-of-free-flaps-from-the-ear
#17
Patrik Lassus, Annastiina Husso, Jyrki Vuola, Andrew J Lindford
AIM: We herein present our experience using free flaps harvested from the ear region in facial, nasal and intraoral reconstruction. PATIENTS AND METHODS: Between 2011 and 2016, 19 patients underwent reconstruction using 20 free flaps from the ear region based on the superficial temporal vessels. There were 10 males and 9 females with a mean age of 57 years. Defect aetiology consisted of post-tumour ablation (n = 15), trauma (n = 2) and burn scar (n = 2)...
April 1, 2017: Microsurgery
https://www.readbyqxmd.com/read/28369974/forensic-facial-reconstruction-relationship-between-the-alar-cartilage-and-piriform-aperture
#18
Raíssa Ananda Paim Strapasson, Lara Maria Herrera, Rodolfo Francisco Haltenhoff Melani
During forensic facial reconstruction, facial features may be predicted based on the parameters of the skull. This study evaluated the relationships between alar cartilage and piriform aperture and nose morphology and facial typology. Ninety-six cone beam computed tomography images of Brazilian subjects (49 males and 47 females) were used in this study. OsiriX software was used to perform the following measurements: nasal width, distance between alar base insertion points, lower width of the piriform aperture, and upper width of the piriform aperture...
March 29, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28366790/should-we-consider-the-hemi-tip-as-a-proper-aesthetic-subunit-in-a-nasal-reconstruction
#19
W Noel, J B Duron, S Jabbour, K Rem, B Bertrand, J Quilichini, M Revol, S Mazouz Dorval
BACKGROUND: Defects involving several aesthetic subunits (ASUs) or lying at the junction of an ASU are challenging and require a complex reconstruction. This study aimed to describe the hemi-tip as a new ASU. MATERIAL AND METHODS: We conducted a retrospective study including patients who underwent a nasal reconstruction for lower nasal pyramid defects according to our modified ASU principle. Patients who suffered from a subtotal alar defect, which also involved <50% of the tip, were reconstructed after excising the remaining tissue of the hemi-tip subunit...
February 27, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28358759/salvage-of-a-necrotic-flap
#20
Joo Hyun Jung, Seon Tae Kim, Sang Hee An, Kwang Ha Moon, Hyoung Min Park, Il Gyu Kang
OBJECTIVE: To report the case of a 68-year-old woman with a skin basal cell carcinoma on the nasal dorsum. After excision, the soft tissue defect was reconstructed using a rectangular advancement flap. However, 2 days later skin necrosis was observed. This report was issued to advise how to avoid and manage skin necrosis after regional flap placement. METHODS: This is a retrospective study. RESULTS: Superficial skin necrosis recovered completely after proper medical management...
March 29, 2017: Journal of Craniofacial Surgery
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