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Auricular reconstruction

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https://www.readbyqxmd.com/read/27900891/chondrogenesis-of-human-adipose-derived-stem-cells-for-future-microtia-repair-using-co-culture-technique
#1
Bee See Goh, Siti Nurhadis Che Omar, Muhammad Azhan Ubaidah, Lokman Saim, Shamsul Sulaiman, Kien Hui Chua
CONCLUSION: In conclusion, these result showed HADSCs could differentiate into chondrocytes-like cells, dependent on signaling induced by TGF-β3 and chondrocytes. This is a promising result and showed that HADSCs is a potential source for future microtia repair. The technique of co-culture is a positive way forward to assist the microtia tissue. OBJECTIVE: Reconstructive surgery for the repair of microtia still remains the greatest challenge among the surgeons...
November 30, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27899950/bone-anchored-titanium-implants-in-patients-with-auricular-defects-three-years-and-27-patients-experience
#2
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/27879225/efficacy-of-posterior-canal-wall-reconstruction-using-autologous-auricular-cartilage-and-bone-p%C3%A3-t%C3%A3-in-chronic-otitis-media-with-cholesteatoma
#3
Min Kwan Baek, Sung Ho Choi, Dong Young Kim, Chang Hyun Cho, Yong Woo Kim, Kwang Ha Moon, Ju Hyoung Lee
OBJECTIVE: This study was designed to investigate the long-term results using the technique of canal wall up mastoidectomy and reconstruction of the posterior canal wall using bone pâté and auricular cartilage in the treatment of chronic otitis media with cholesteatoma. MATERIALS AND METHODS: A retrospective review was performed on 42 patients who underwent canal wall up mastoidectomy and posterior canal wall reconstruction at a single institution between November 2005 and November 2012...
November 23, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27875514/domino-flaps-for-repairing-of-secondary-bilateral-cleft-lip-with-severe-columella-deformity
#4
Jiao Wei, Cheng-An Chiang, Da Zhou, Qingfeng Li, Kai Liu
The patients with secondary bilateral cleft lip and nasal deformity always suffer from a serious part of the horizontal and vertical soft tissue deficiencies in the upper lip and nose, especially the columella. Normally, the Abbe flap is used to increase the soft tissue volume of upper lip. However, how to reconstruct the sever columella deficient, how to make full use of the Abbe flap and the remaining soft tissue of the upper lip, are always the problems that need to be solved by plastic surgeons. Twenty-nine patients with secondary bilateral cleft lip and severe columella deficiency were simultaneously reconstructed with several local flaps like dominos that was called "Domino sliding flaps...
November 21, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27861353/reconstruction-of-auricular-conchal-defects-with-local-flaps
#5
Ji Zhu, Hui Zhao, Kai Wu, Chuan Lv, Hong-da Bi, Meng-Yan Sun, Yu-Chong Wang, Xin Xing, Chun-Yu Xue
Reconstruction of the auricular conchal cavity is relatively difficult because of its unique structure, shape, and location. We compared different methods of repair of the auricular concha to determine the method that would cause the least injury to the donor site.The method selected was based on the location and size of the defect. If the defect was located in the upper part of the concha, or if the defect was >15 mm in diameter, we used a post-auricular subcutaneous pedicle island flap that was pulled through a post-auricular sulcus tunnel to cover the wound...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27847738/temporomandibular-joint-chondrosarcoma-a-case-report-and-literature-review
#6
Kyungjin Lee, Seong Hwan Kim, Soung-Min Kim, Hoon Myoung
Chondrosarcoma is a malignant tumor that originates from cartilaginous cells and is characterized by cartilage formation. Only 5% to 10% of chondrosarcoma occurs in the head and neck area, and it is uncommon in the temporomandibular joint area. This report describes an unusual case with a rare, large chondrosarcoma in a 47-year-old woman who presented with painless swelling and trismus. Computed tomography showed a large mass approximately 8.5×6.0 cm in size arising adjacent to the lateral pterygoid plate and condyle...
October 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/27780641/three-layer-reconstruction-of-lower-third-nasal-defects-using-forehead-flap-reversed-nasolabial-flap-and-auricular-cartilage
#7
A Ghassemi, S S Ahmed, H Ghanepur, A Modabber
The reconstruction of a full-thickness defect of the distal third of the nose requires the restoration of all three anatomical layers. A practical method for three-layer reconstruction of the lower third of the nose and the long-term results of this technique are presented herein. A combined reconstruction technique was utilized, including a reverse subcutaneous pedicled nasolabial flap to restore the nasal mucosa, an auricular cartilage graft for structural support, and a forehead flap for cutaneous coverage of the defect...
October 22, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27739349/costal-cartilage-graft-with-perichondrium-a-possible-anti-adhesive-material
#8
Norio Fukuda, Hirotaka Asato, Kohei Umekawa, Goro Takada, Takeshi Kan, Shoichi Sasaki
BACKGROUND: Adhesion occurs as a part of the wound healing process, but it sometimes compromises patients' daily activities. The authors were looking for materials and methods that could prevent adhesion, and noticed that the costal cartilage has possibility. The anti-adhesive property of the costal cartilage was examined histologically. METHODS: Thirty-five patients with microtia who provided consent for participating in this study were enrolled between April 2008 and March 2015...
October 14, 2016: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/27726131/reevaluation-of-the-arterial-blood-supply-of-the-auricle
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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/27614721/-auricular-malformations
#15
F Firmin, A Marchac
Reconstruction of complex auricular malformations is one of the longest surgical technique to master, because it requires an extremely detailed analysis of the anomaly and of the skin potential, as well as a to learn how to carve a complex 3D structure in costal cartilage. Small anomalies can be taken care of by any plastic surgeon, providing that he/she is aware of all the refinements of ear surgery. In this chapter, we analyze retrospectively 30 years of auricular reconstruction, ranging from small anomalies to microtia (2500 cases), excluding aesthetics variants such as prominent ears...
October 2016: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/27566509/characterization-of-pediatric-microtia-cartilage-a-reservoir-of-chondrocytes-for-auricular-reconstruction-using-tissue-engineering-strategies
#16
Y Melgarejo-Ramírez, R Sánchez-Sánchez, J García-López, A M Brena-Molina, C Gutiérrez-Gómez, C Ibarra, C Velasquillo
The external ear is composed of elastic cartilage. Microtia is a congenital malformation of the external ear that involves a small reduction in size or a complete absence. The aim of tissue engineering is to regenerate tissues and organs clinically implantable based on the utilization of cells and biomaterials. Remnants from microtia represent a source of cells for auricular reconstruction using tissue engineering. To examine the macromolecular architecture of microtia cartilage and behavior of chondrocytes, in order to enrich the knowledge of this type of cartilage as a cell reservoir...
September 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27515541/auricular-reconstruction-using-a-novel-three-flap-technique-improves-the-auriculocephalic-angle
#17
Liu Jiafeng, Sun Jiaming, Li Xiaodan
BACKGROUND: Skin grafting is needed for traditional auricular reconstruction. As the skin grafts contract, the postoperative framework is distorted. This leads to a decrease in the auriculocephalic angle. The objective of this study was to test a new method to cover the reconstructive framework by using three skin flaps and a larger tissue expander than that normally used. This may reduce the distortion of the reconstructed ear and create a well-shaped auriculocephalic angle. METHODS: A large expander was inserted in the postauricular mastoid area...
October 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27500982/morphogenesis-of-the-middle-ear-ossicles-and-spatial-relationships-with-the-external-and-inner-ears-during-the-embryonic-period
#18
Maimi Ozeki-Satoh, Aoi Ishikawa, Shigehito Yamada, Chigako Uwabe, Tetsuya Takakuwa
We describe the three-dimensional morphogenesis of the middle ear ossicles (MEOs) according to Carnegie stage (CS) in human embryos. Seventeen samples including 33 MEOs from CS18 to 23 were selected from the Kyoto Collection. The primordia of the MEOs and related structures were histologically observed and three-dimensionally reconstructed from digital images. The timing of chondrogenesis was variable among structures. The stapes was recognizable as a vague condensation of the mesenchymal cells in all samples from CS18, whereas the malleus and incus were recognizable at CS19...
October 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27473928/-inferior-alveolar-nerve-reconstruction-after-segmental-resection-of-the-mandible
#19
R Taraquois, A Joly, A Sallot, J-D Kün Darbois, B Laure, A Paré
INTRODUCTION: The sacrifice of inferior alveolar nerve (IAN) is usual in case of resection of mandibular tumors and is responsible for disabling sensory disorders, drooling and lip incompetence. We report the case of a reconstruction of the IAN by means of an autologous nerve graft after segmental resection of the mandible. OBSERVATION: A 27-year-old man presented with a recurrence of mandibular ameloblastoma. Treatment consisted in segmental mandibulectomy with resection of the IAN...
July 26, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27465194/malignant-melanoma-beyond-the-basics
#20
Sabrina N Pavri, James Clune, Stephan Ariyan, Deepak Narayan
LEARNING OBJECTIVES: After reading this article, the participant should be able to: 1. Discuss the initial management of cutaneous malignant melanoma with regard to diagnostic biopsy and currently accepted resection margins. 2. Be familiar with the management options for melanoma in specific situations such as subungual melanoma, auricular melanoma, and melanoma in the pregnant patient. 3. Discuss the differentiating characteristics of desmoplastic melanoma and its treatment options. 4...
August 2016: Plastic and Reconstructive Surgery
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