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Auricular reconstruction

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https://www.readbyqxmd.com/read/28582958/using-osseointegrated-implants-concomitant-with-onlay-bone-grafting-for-auricular-reconstruction
#1
Amin Rahpeyma, Saeedeh Khajehahmadi
Conventional dental implants have been reported for nasal and orbital regions but due to limited thickness of calvarium they are not used in mastoid region. Onlay bone grafting in skull concomitant with implants is a predictable method and experimental animal studies confirm it. Parietal bone and lateral mandibular ramus are suggested source of bone grafts and dental implants with 7 mm length can be used safely. Increased fixture length may lead to increase survival in long term.
June 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28574951/single-artery-human-ear-graft-procurement-a-simplified-approach
#2
Jérôme Duisit, Hadrien Amiel, Donovan Debluts, Louis Maistriaux, Alexander Gerdom, Anne Bol, Pierre Gianello, Catherine Behets, Benoit Lengelé
BACKGROUND: In the field of experimental facial vascularized composite tissue allotransplantation (VCA), a human auricular subunit model, pedicled on both superficial temporal (STA) and posterior auricular (PAA) arteries was described. Clinical cases of extensive auricular replantation however, suggested that a single artery could perfuse the entire flap. In our study, variants of this single pedicle approach have been studied, aiming to develop a more versatile replantation technique, in which the question of venous drainage has also been addressed...
May 31, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28557871/epidemiology-and-outcomes-of-auricular-burn-injuries
#3
Franca Kraenzlin, Oren Mushin, Shahin Ayazi, John Loree, Derek E Bell
Auricular burns represent a unique type of injury. The acute management and clinical course of these injuries can be different from other facial burns. There is a paucity of literature pertaining to the epidemiology and acute management of auricular burns. Most studies focus on deformity reconstruction. The aim of this study was to characterize the epidemiology, treatment, and outcomes of auricular burns. Data from all patients presenting to a regional burn center in a 4-year period were reviewed and those with auricular burns were identified...
May 23, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28538573/pursuing-mirror-image-reconstruction-in-unilateral-microtia-customizing-auricular-framework-by-application-of-three-dimensional-imaging-and-three-dimensional-printing
#4
Hsin-Yu Chen, Li-Shia Ng, Chun-Shin Chang, Ting-Chen Lu, Ning-Hung Chen, Zung-Chung Chen
BACKGROUND: Advances in three-dimensional imaging and three-dimensional printing technology have expanded the frontier of presurgical design for microtia reconstruction from two-dimensional curved lines to three-dimensional perspectives. This study presents an algorithm for combining three-dimensional surface imaging, computer-assisted design, and three-dimensional printing to create patient-specific auricular frameworks in unilateral microtia reconstruction. METHODS: Between January of 2015 and January of 2016, six patients with unilateral microtia were enrolled...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28524733/cartilage-engineering-in-reconstructive-surgery-auricular-nasal-and-tracheal-engineering-from-a-surgical-perspective
#5
Paul Severin Wiggenhauser, Jan Thorsten Schantz, Nicole Rotter
This review provides an update on cartilage tissue engineering with particular focus on the head and neck. It is aimed at scientists and clinicians who are interested in tissue engineering and its clinical applicability. Principal tissue engineering strategies are summarized in the first part of this review. In the second part, current clinical approaches to auricular, nasal and tracheal reconstruction are discussed from a surgical perspective. By this approach, the requirements for clinical applicability are outlined and new insight into relevant aims of research is given to accelerate the transfer from bench to bedside...
May 19, 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28465028/the-technique-for-3d-printing-patient-specific-models-for-auricular-reconstruction
#6
Roberto L Flores, Hannah Liss, Samuel Raffaelli, Aiza Humayun, Kimberly S Khouri, Paulo G Coelho, Lukasz Witek
PURPOSE: Currently, surgeons approach autogenous microtia repair by creating a two-dimensional (2D) tracing of the unaffected ear to approximate a three-dimensional (3D) construct, a difficult process. To address these shortcomings, this study introduces the fabrication of patient-specific, sterilizable 3D printed auricular model for autogenous auricular reconstruction. METHODS: A high-resolution 3D digital photograph was captured of the patient's unaffected ear and surrounding anatomic structures...
April 6, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28445373/auricular-reconstruction-in-hemifacial-microsomia-with-an-expanded-two-flap-method
#7
Jin Qian, Zhibin Li, Tun Liu, Xu Zhou, Qingguo Zhang
BACKGROUND: Reconstruction of external ear is important for the child/adult with craniofacial deformities to achieve balance and harmony of the face and head. The aim of this study was to investigate the clinical application of an expanded two-flap method for auricular reconstruction in hemifacial microsomia. METHODS: Between January of 2014 and November of 2015, 111 hemifacial microsomia patients with microtia underwent auricular reconstruction with an expanded two-flap method...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445371/preventing-early-stage-graft-bone-resorption-by-simultaneous-innervation-innervated-iliac-bone-flap-for-mandibular-reconstruction
#8
Lei Wang, Jian-Hua Wei, Xi Yang, Zi-Hui Yang, Mo-Yi Sun, Xiao-Bing Cheng, Li-Qun Xu, De-Lin Lei, Chen-Ping Zhang
BACKGROUND: Postoperative resorption of vascularized bone grafts jeopardizes the success of dental implant(s) and functional rehabilitation of the jaw. Recent evidence supports the crucial role of innervation in bone regeneration and turnover. METHODS: This study reports a new technique for simultaneous innervation of vascularized iliac flaps in mandibular reconstruction, through neurorrhaphy between ilioinguinal nerves, which innervate iliac bone, and inferior alveolar nerves or great auricular nerves...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28420435/comparison-of-the-mechanical-properties-of-different-skin-sites-for-auricular-and-nasal-reconstruction
#9
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/28370229/more-than-just-the-helix-a-series-of-free-flaps-from-the-ear
#10
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/28352607/a-new-technique-for-conchal-cartilage-harvest
#11
Joon Young Kim, Ho Jik Yang, Ji Won Jeong
The goal of auricular cartilage harvest is to obtain a sufficient amount for reconstruction and to minimize the change in ear shape. The cartilage can be harvested by a posterior or anterior approach, and each method has advantages and disadvantages. The posterior approach presents the advantage of scar concealment, but there are limits to the amount of cymba cartilage that may be harvested. In contrast, the anterior approach may cause a noticeable scar. However, as cartilage is collected, the anterior approach provides a view that facilitates the preservation ear structure...
March 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28350674/a-new-microtia-reconstruction-method-using-delayed-postauricular-skin-flap
#12
Gaofeng Li, Fan Zhang, Wei Ding, Zihan Wu, Yigao Hu, Tao Luo, Bo Zhang, Xia Jiang
BACKGROUND: This article presents a new microtia reconstruction method using a delayed postauricular skin flap. METHODS: The surgery is scheduled in three stages, the first of which delays the postauricular skin flap and deals with the remnant auricle. Three weeks later, the second stage is carried out. An erect, three-dimensional ear framework fabricated from autogenous rib cartilage is inserted between two flaps. The anterior auricular surface of the framework is draped with the delayed skin flap, and the postauricular surface is draped with postauricular fascia and overlying grafted skin...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28350666/long-term-comparison-between-human-normal-conchal-and-microtia-chondrocytes-regenerated-by-tissue-engineering-on-nanofiber-polyglycolic-acid-scaffolds
#13
COMPARATIVE STUDY
Hitomi Nakao, Robin D Jacquet, Mark Shasti, Noritaka Isogai, Ananth S Murthy, William J Landis
BACKGROUND: Previous regeneration studies of auricle-shaped cartilage by tissue engineering leave unresolved whether the chondrocyte phenotype from human auricular chondrocytes seeded onto polymeric scaffolds is retained over the long term and whether microtia remnants may be a viable cell source for auricular reconstruction. METHODS: Chondrocytes were isolated from human ears, either normal conchal ear or microtia cartilage remnants, expanded in vitro, and seeded onto nanoscale-diameter polyglycolic acid sheets...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28346256/reconstruction-of-a-full-thickness-superior-auricular-defect
#14
Mario Mitkov, Juan-Carlos Martinez
No abstract text is available yet for this article.
March 23, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28341947/the-versatile-posterior-auricular-fascia-in-secondary-rhinoplasty-procedures
#15
Darryl James Hodgkinson, Pedro Miguel Valente
BACKGROUND: Secondary rhinoplasty often involves the addition of autogenous graft material to add volume, structure, support and to camouflage cartilage and bone grafts. A variety of fascias have been used to camouflage, wrap and give "fill" in secondary rhinoplasty. The posterior auricular fascia is a source of material ideal for such purposes, and its quantity, anatomical structure and ease of harvest with minimal donor site morbidity make it a versatile and attractive autogenous graft...
March 24, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28326677/implantation-and-positioning-of-a-transcutaneous-magnetic-bone-conduction-hearing-system-for-children-with-microtia-in-preparation-for-auricular-reconstruction
#16
S Sharma, N Bulstrode, A Marshall
No abstract text is available yet for this article.
March 22, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28322456/seasonality-of-auricular-amputations-in-rabbits
#17
Kathleen Yaremchuk, Vigen Darian, Amy M Williams
This retrospective observational analysis hypothesizes that an increase occurs in online reports and images of auricular amputations of confectionary rabbits during the spring. Using the online search engine Google, online content and visual portrayals of confectionary rabbit auricular amputations from 2012 to 2017 were identified and trended against seasonal variations. To determine incidence, commercial availability of chocolate rabbits in retail facilities were assayed. A statistically significant increase in mention of rabbit auricular amputations occurred during the spring...
April 2017: Laryngoscope
https://www.readbyqxmd.com/read/28293515/anatomical-and-clinical-study-of-the-posterior-auricular-artery-angiosome-in-search-of-a-rescue-tool-for-ear-reconstruction
#18
Oswaldo J Gómez Díaz, Mario D Cruz Sánchez
BACKGROUND: The retroauricular tissues have been used for a long time for ear reconstruction, but the anatomical bases of flaps of this region are not completely clear. The aim of this study was to estimate blood supply area and location of this on the skin and fascia retroauricular dependent of posterior auricular artery (PAA) to establish safe margins to design flaps for auricular reconstruction. METHODS: Dissection under magnification (×3.5) of the PAA through a cervical approach; injection of methylmethacrylate in the PAA as a staining technique; retroauricular approach to identify the territory of irrigation of PAA in the retroauricular skin and fascia; measuring and location of the stained area; and report of 2 cases of ear reconstruction with fasciocutaneous and fascia flaps based on PAA, designed according to the anatomical study...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28293505/accurate-measurements-of-the-skin-surface-area-of-the-healthy-auricle-and-skin-deficiency-in-microtia-patients
#19
Iris A Otto, Rob F M van Doremalen, Ferry P W Melchels, Michail N Kolodzynski, Behdad Pouran, Jos Malda, Moshe Kon, Corstiaan C Breugem
BACKGROUND: The limited cranial skin covering auricular implants is an important yet underrated factor in auricular reconstruction for both reconstruction surgery and tissue engineering strategies. We report exact measurements on skin deficiency in microtia patients and propose an accessible preoperative method for these measurements. METHODS: Plaster ear models (n = 11; male:female = 2:1) of lobular-type microtia patients admitted to the University Medical Center Utrecht in The Netherlands were scanned using a micro-computed tomographic scanner or a cone-beam computed tomographic scanner...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28231373/auricular-complications-in-parotid-temporal-bone-infratemporal-fossa-and-lateral-skull-base-surgery
#20
Patrick S Carpenter, Ryan C Burgette, John P Leonetti, Sam J Marzo
Neoplasms located in the parotid region, temporal bone, infratemporal fossa, and lateral skull base represent a challenge due to their difficult anatomic location and surrounding neurovascular structures. A variety of surgical approaches are appropriate to access this area, although several of them can place the auricular blood supply in danger. If the auricular blood supply is compromised, ischemia and, eventually, avascular necrosis of the auricle can occur. Auricular necrosis often can cause patients a delay in adjuvant radiation therapy and result in the need for additional reconstructive procedures...
February 2017: Ear, Nose, & Throat Journal
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