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auricle reconstruction

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https://www.readbyqxmd.com/read/27899950/bone-anchored-titanium-implants-in-patients-with-auricular-defects-three-years-and-27-patients-experience
#1
Emilio Mevio, Luca Facca, Stefano Schettini, Mauro Mullace
Different surgical solutions have been proposed for reconstruction of the auricle following loss of the pinna through traumatic injury or neoplastic disease or in patients with congenital defects. Surgical treatment may involve the insertion of an autogenous rib cartilage framework or the use of a porous polymer material inserted into an expanded postauricular flap. Reconstruction with rib cartilage has yielded good results but requires more than one surgical step, and adverse events can occur both at the donor and at the acceptor site; cases of prosthesis rejection have also been described following application of the polymeric prosthesis...
2016: International Journal of Otolaryngology
https://www.readbyqxmd.com/read/27834100/sound-lateralization-ability-of-patients-with-bilateral-microtia-and-atresia-after-bilateral-reconstruction-of-auricles-and-external-auditory-canals-and-fitting-of-new-canal-type-hearing-aids-to-replace-a-bone-conduction-hearing-aid
#2
Kimitaka Kaga, Hirotaka Asato
CONCLUSION: Each of eight patients with bilateral microtia and atresia underwent bilateral reconstruction of the auricles and external auditory canals and were fitted bilateral canal-type hearing aids in the operated ears to replace a bone conduction hearing aid. The ability to discriminate inter-aural intensity difference (IID) and even inter-aural time difference (ITD) was retained in all these patients. OBJECTIVE: This study studied the post-operative sound lateralization ability of patients with bilateral microtia and atresia after total reconstruction of both auricles and external auditory canals, followed by fitting of bilateral canal-type hearing aids...
November 11, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27765391/fabrication-of-postsurgical-auricle-separator-stent-in-reconstruction-of-the-ear
#3
Kumar C Pradeep, Shahid M A Mohammed, Mandavia Anisha
A natural appearing ear with appropriate projection from the head remains a great challenge in the reconstruction of the ear. Surgical and prosthetic means have been addressed in the management of patients with microtia, with each carrying its own merits and demerits. Lack of adequate projection of the ear and adhesion of tissues are some common complications of reconstructive surgery that can adversely affect the treatment outcome. This article describes a technique for the fabrication of a postsurgical stent to prevent adhesion of the surgically reconstructed ear to the underlying tissues...
October 17, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27755445/nasal-reconstruction-and-repair-of-secondary-nasal-deformities-following-treatment-of-nasal-hemangiomas
#4
Xiaona Lu, Fei Fan, Huan Wang, Jianjun You
BACKGROUND: Secondary nasal deformities and retardation of development due to treatment of nasal hemangioma during infancy are a challenge when it comes to nasal reconstruction. In order to evaluate nasal repair and reconstruction in these patients, the authors compared the ease and outcomes of using expanded forehead, nasolabial sulcus, and medial upper arm tube flaps. METHODS: According to the deformities and patients' wishes, flaps were selected; using autogeneic rib cartilage, auricle cartilage, or silica gel as a scaffold or without framework; the inner lining were made by the residual scar tissue or the distal end of transferred flap...
October 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27755426/bone-marrow-stem-cells-and-ear-framework-reconstruction
#5
Hamid Karimi, Seyed-Abolhassan Emami, Mohammad-Kazem Olad-Gubad
BACKGROUND: Repair of total human ear loss or congenital lack of ears is one of the challenging issues in plastic and reconstructive surgery. OBJECTIVE: The aim of the present study was 3D reconstruction of the human ear with cadaveric ear cartilages seeded with human mesenchymal stem cells. METHOD: We used cadaveric ear cartilages with preserved perichondrium. The samples were divided into 2 groups: group A (cartilage alone) and group B (cartilage seeded with a mixture of fibrin powder and mesenchymal stem cell [1,000,000 cells/cm] used and implanted in back of 10 athymic rats)...
October 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27726131/reevaluation-of-the-arterial-blood-supply-of-the-auricle
#6
Isaac Zilinsky, Detlev Erdmann, Oren Weissman, Niels Hammer, Mircea-Constantin Sora, Thilo L Schenck, Sebastian Cotofana
The anatomical basis for auricular flaps used in multiple aesthetic and reconstructive procedures is currently based on a random distribution of the underlying arterial network. However, recent findings reveal a systematic pattern as opposed to the present concepts. Therefore, we designed this study to assess the arterial vascular pattern of the auricle in order to provide reliable data about the vascular map required for surgical interventions. Sixteen human auricles from eight body donors (five females/three males, 84...
October 11, 2016: Journal of Anatomy
https://www.readbyqxmd.com/read/27717980/quantitative-analysis-of-the-right-auricle-with-256-slice-computed-tomography
#7
Cai-Ying Li, Bu-Lang Gao, Tong Pan, Cheng Xiang, Xue-Jing Zhang, Xiao-Wei Liu, Qiong-Ying Fan
PURPOSE: To quantitatively measure the morphology parameters of the right auricle with 256-slice multidetector computed tomography angiography (MDCTA) in healthy people. MATERIALS AND METHODS: A retrospective analysis of 200 patients who had undergone coronary MDCTA with negative findings was performed. The raw imaging data were reconstructed and the right auricular volume, right atrial volume, right auricle height, base long and short axes, base perimeter and area, normal angle, and distance were quantitatively measured...
October 7, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27714497/mechanisms-of-ear-trauma-and-reconstructive-techniques-in-105-consecutive-patients
#8
Michail N Kolodzynski, Moshe Kon, Silvan Egger, Corstiaan C Breugem
Acquired auricular deformities may diminish facial esthetics and cause psychological distress. The aim of this article is to provide an overview of the type of injuries and applied reconstructive techniques in a large academic hospital in The Netherlands. A retrospective chart review was conducted for the last 105 patients who underwent auricular reconstruction for an acquired deformity. Data concerning gender, affected side, cause of injury, anatomical region, the previous and further surgeries, type of cartilage, and skin cover used were collected and analyzed...
October 6, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27632079/clinical-outcomes-following-ear-reconstruction-with-adjuvant-3d-template-model
#9
Peng Zhu, Suijun Chen
CONCLUSIONS: The use of the 3D template model in microtia surgery leads to satisfactory results, for its contribution to the engraving and localization of the microtia auricle in auricle reconstruction. OBJECTIVES: The aim of the study was to create an anatomical correct 3D rapid prototyping model for patients with microtia, to assist with the accurate fabrication and localization of a coastal cartilage framework for auricular reconstruction, and patients, who had undergone rib-cartilage reconstruction to treat a congenital auricular defect, were evaluated for aesthetic outcomes following ear reconstruction with a different template model...
September 15, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27631246/reconstruction-of-the-postauricular-defects-using-retroauricular-artery-perforator-based-island-flaps-anatomical-study-and-clinical-report
#10
Yuan Zheng Zhang, Ying Li Li, Chao Yang, Shuo Fang, Hao Fan, Xin Xing
The objectives of the study were to introduce and investigate the reliability of a new flap for postauricular defects using the retroauricular artery perforator.Twenty auricles from 10 Asian human cadavers were dissected to examine the retroauricular perforator distribution and diameter. Fourteen patients with postauricular defects underwent reconstruction using the retroauricular artery perforator from 2013 to 2015. After locating the position of the perforator by ultrasound Doppler blood flow detection, a suitable flap was designed according to the defect's size, condition, and distance from the pedicle...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27625025/auricular-split-thickness-skin-graft-for-ear-canal-coverage
#11
Yarah M Haidar, Sartaaj Walia, Ronald Sahyouni, Yaser Ghavami, Harrison W Lin, Hamid R Djalilian
Split-thickness skin graft (STSG) continues to be the preferred means of external auditory canal (EAC) reconstruction. We thus sought to describe our experience using skin from the posterior aspect of the auricle (SPAA) as a donor site in EAC reconstruction. Grafts were, on average, 5 × 10 mm in size and obtained with a No. 10 blade after tumescence injection. The cases of 39 patients who underwent 41 procedures were retrospectively reviewed. Of the 38 patients with both 3- and 6-month follow-ups, no postoperative stenosis or bony exposure occurred...
December 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/27608968/congenital-anomalies-following-use-of-isotretinoin-emphasis-on-its-legal-aspects
#12
Naimeh Farhidnia, Azadeh Memarian
We described a neonate with severe and multiple abnormalities following use of isotretinoin, in spite of the mother's previous knowledge of drug complications. Initial physical examination after delivery showed congenital absence of both eyes and both auricles as well as anal atresia and a cleft palate. Due to severe respiratory distress and atresia of the anus, the neonate was admitted to a neonatal intensive care unit and underwent reconstructive surgery. The drug should not have been used during pregnancy...
September 8, 2016: Medico-legal Journal
https://www.readbyqxmd.com/read/27496290/three-dimensional-autologous-cartilage-framework-fabrication-assisted-by-new-additive-manufactured-ear-shaped-templates-for-microtia-reconstruction
#13
Jiayu Zhou, Bo Pan, Qinghua Yang, Yanyong Zhao, Leren He, Lin Lin, Hengyun Sun, Yupeng Song, Xiaobo Yu, Zhongyang Sun, Haiyue Jiang
BACKGROUND: During microtia reconstruction, the intraoperative design of the cartilage framework is important for the appearance and symmetry of the bilateral auricles. Templates (traditionally, the X-ray film template) are usually utilized to complete the task, which can provide cues regarding size, cranioauricular angle and positioning to the surgeons. With a combination of three-dimensional (3D) scanning and additive manufacturing (AM) techniques, we utilized two different ear-shaped templates (sheet moulding and 3D templates) during the fabrication of 3D-customized autologous cartilage frameworks for auricle reconstruction...
October 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27417940/biomechanical-characterisation-of-the-human-auricular-cartilages-implications-for-tissue-engineering
#14
M F Griffin, Y Premakumar, A M Seifalian, M Szarko, P E M Butler
Currently, autologous cartilage provides the gold standard for auricular reconstruction. However, synthetic biomaterials offer a number of advantages for ear reconstruction including decreased donor site morbidity and earlier surgery. Critical to implant success is the material's mechanical properties as this affects biocompatibility and extrusion. The aim of this study was to determine the biomechanical properties of human auricular cartilage. Auricular cartilage from fifteen cadavers was indented with displacement of 1 mm/s and load of 300 g to obtain a Young's modulus in compression...
December 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27365621/management-of-congenital-atresia-ear
#15
S B Mahajan, L K Kochar, A K Gupta
A total of 3 out of 5 cases of major congenital ear malformation seen in out patient department in two years in 1997 and 1998 were operated for functional reconstruction of external auditory canal, middle ear and ossicular chain. 2 cases of bilateral malformation of auricle grade 2 were advised otoplastic repair prior to tympanoplasty. Out of the 3 cases operated by anterior transatretic bone approach, 2 cases had good hearing improvement in air conduction threshold of up to 30 db hearing level (averages of 0...
October 2001: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/27276816/-application-of-split-thickness-scalp-graft-and-temporoparietal-fascia-flap-in-low-hairline-auricle-reconstruction-in-microtia-patients
#16
Meishui Wang, Wang Biao, Xiuying Shan, Houbing Zheng, Shanying Wu, Zhaoliang Liu
OBJECTIVE: To investigate the application and effectiveness of split-thickness scalp graft and temporoparietal fascia flap in the low hairline auricle reconstruction in microtia patients. METHODS: Between July 2010 and April 2015, 23 patients with low hairline microtia (23 ears) underwent low hairline auricle reconstruction. There were 16 males and 7 females with the mean age of 12 years (range, 6-34 years). The left ear was involved in 10 cases, and the right ear in 13 cases...
February 2016: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/27274439/davis-flap-the-glory-still-present
#17
Ahmed Hassan El-Sabbagh
BACKGROUND: Upper third defects of the ear are too large to be closed primarily without distorting the auricle. Full thickness defects can be reconstructed with local flaps. In this article, Davis flap was used to fill the upper third defects of the ear with some modifications. PATIENTS AND METHODS: Eight patients underwent reconstruction of full thickness auricular defects with Davis flaps from July 2012 to December 2014. The posterior surface of the flap and the raw area of conchal area were covered by full thickness graft taken from posterior surface of ear...
2016: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/27260613/vibrant-soundbridge-combined-with-auricle-reconstruction-for-bilateral-congenital-aural-atresia
#18
Danni Wang, Shouqin Zhao, Qingguo Zhang, Yi Li, Xiaobo Ma, Ran Ren
OBJECTIVES: To report an integrating surgical method of Vibrant SoundBridge (VSB) implant and auricle reconstruction. METHODS: 4 cases of congenital bilateral external/middle ear malformation were enrolled. All of them were diagnosed as bilateral bony atresia and grade III microtia. Stapes vibroplasty was performed for all subjects in one operation with auricle reconstruction stage 3. The clinical information and hearing outcomes were analyzed. RESULTS: Satisfied aesthetic outcomes were confirmed by sculptured outline and symmetric shape on both sides...
July 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27252977/reconstruction-of-a-subtotally-amputated-auricle-with-a-very-narrow-inferior-pedicle
#19
Cemal Alper Kemaloğlu, Fatih Kılıç, Galip Kemali Günay
In our case study, the left ear of a 57-year-old male patient was subtotally amputated due to an iron-plate cutting accident. Only a 5-mm inferior skin pedicle connected the amputated ear to the lobule. The ear was reattached with primary suture without microsurgery. The reattached ear healed uneventfully.
2015: Case Reports in Plastic Surgery & Hand Surgery
https://www.readbyqxmd.com/read/27200202/osseointegrated-implants-an-alternative-approach-in-patients-with-bilateral-auricular-defects-due-to-chemical-assault
#20
Emilio Mevio, Mauro Mullace, Luca Facca, Stefano Schettini
Acid attacks committed as crimes of passion are unfortunately becoming far from infrequent occurrence. The injuries sustained in such attacks mainly involve the face and trunk, with the acid causing cutaneous and subcutaneous tissue burns that can result in permanent scarring, loss of the nose or external ear, and severe visual impairment. Different surgical solutions have been proposed for reconstruction of the auricle following loss of the ear through traumatic injury or cancer or in patients with congenital defects: surgical reconstruction may involve the insertion of an autogenous rib cartilage framework or the use of a porous polymer material inserted into an expanded postauricular flap...
2016: Case Reports in Otolaryngology
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