keyword
MENU ▼
Read by QxMD icon Read
search

Auricular cartilage

keyword
https://www.readbyqxmd.com/read/28798549/autologous-ear-reconstruction
#1
REVIEW
Asaf Olshinka, Matthew Louis, Tuan A Truong
Since the pioneering use of autologous rib cartilage for the reconstruction of microtia, there have been significant advances in surgical technique that have helped to ameliorate the psychological burden of microtia. To date, the use of rib cartilage for auricular reconstruction is one of the most enduring and ubiquitous techniques for microtia reconstruction as it provides excellent aesthetic results with lasting durability. In this review, the authors outline the most common methods of microtia reconstruction with a comparison of each technique and illustrative case examples...
August 2017: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/28796097/comparison-of-two-different-grafts-in-nasal-framework-reconstruction-of-binder-syndrome-cartilage-and-silicone
#2
Le Tian, Jianjun You, Huan Wang, Bo Zhang, Yihao Xu, Xiaona Lu, Fei Fan
BACKGROUND: Binder syndrome is a rare congenital malformation with a flat facial profile especially a depressed nose. Rhinoplasty plays an important part in the multidisciplinary surgical protocol. Different materials have been proposed to reconstruct nasal framework. But fewer evidence concerns which graft can achieve more stable and appreciated nasal contour. In this article, the authors reported surgical details and experience of nasal framework reconstruction of Binder syndrome, compare the esthetic outcomes of 2 grafts: autologous costal cartilage and L-shaped silicone covered with auricular cartilage...
August 8, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28777314/artificial-auricular-cartilage-using-silk-fibroin-and-polyvinyl-alcohol-hydrogel
#3
Jung Min Lee, Md Tipu Sultan, Soon Hee Kim, Vijay Kumar, Yeung Kyu Yeon, Ok Joo Lee, Chan Hum Park
Several methods for auricular cartilage engineering use tissue engineering techniques. However, an ideal method for engineering auricular cartilage has not been reported. To address this issue, we developed a strategy to engineer auricular cartilage using silk fibroin (SF) and polyvinyl alcohol (PVA) hydrogel. We constructed different hydrogels with various ratios of SF and PVA by using salt leaching, silicone mold casting, and freeze-thawing methods. We characterized each of the hydrogels in terms of the swelling ratio, tensile strength, pore size, thermal properties, morphologies, and chemical properties...
August 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28746277/auricular-tissue-engineering-using-osteogenic-differentiation-of-adipose-stem-cells-with-small-intestine-submucosa
#4
Chih-Hsun Lin, I-Chen Yang, Chi-Han Tsai, Hsu-Wei Fang, Hsu Ma
BACKGROUND: Ear reconstruction remains a challenge for plastic surgeons. A tissue-engineering approach could provide another route for obtaining shape maintenance in neoauricular tissue. METHODS: The authors designed a novel tissue-engineering auricular construct by culturing human adipose stem cells, which differentiated into osteocytes but not chondrocytes, in small intestine submucosa scaffolds. The authors evaluated cell growth potential and mechanical properties...
August 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28692518/costal-cartilage-assessment-in-surgical-timing-of-microtia-reconstruction
#5
Zhongyang Sun, Xiaobo Yu, Weiwei Chen, Qinghua Yang, Yupeng Song, Jiayu Zhou, Haiyue Jiang
BACKGROUND: Rib cartilage growth is closely related to age and determines the feasibility and outcomes of auricular reconstruction. Ear reconstruction is performed as early as age 6 in efforts to treat children before school matriculation while allowing for sufficient rib growth. But there is controversy over the optimal timing of microtia reconstruction. This study employs CT imaging and surface scanning to guide the timing of auricular reconstruction in children. METHODS: A retrospective analysis was performed on 6-year-old microtia patients between January 2016 and June 2016...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28692513/viability-and-biomechanics-of-diced-cartilage-blended-with-platelet-rich-plasma-and-wrapped-with-poly-lactic-co-glycolic-acid-membrane
#6
Jun-Lin Liao, Jia Chen, Bin He, Yong Chen, Jia-Qun Xu, Hong-Ju Xie, Feng Hu, Ai-Jun Wang, ChengQun Luo, Qing-Feng Li, Jian-Da Zhou
OBJECTIVES: The objective of this study was to investigate the viability and biomechanics of diced cartilage blended with platelet-rich plasma (PRP) and wrapped with poly (lactic-co-glycolic) acid (PLGA) membrane in a rabbit model. METHODS: A total of 10 New Zealand rabbits were used for the study. Cartilage grafts were harvested from 1 side ear. The grafts were divided into 3 groups for comparison: bare diced cartilage, diced cartilage wrapped with PLGA membrane, and diced cartilage blended with PRP and wrapped with PLGA membrane...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28676165/repair-of-auricular-defects
#7
REVIEW
Deborah Watson, Avram Hecht
Repairing defects of the auricle requires an appreciation of the underlying 3-dimensional framework, the flexible properties of the cartilages, and the healing contractile tendencies of the surrounding soft tissue. In the analysis of auricular defects and planning of their reconstruction, it is helpful to divide the auricle into subunits for which different techniques may offer better functional and aesthetic outcomes. This article reviews many of the reconstructive options for defects of the various auricular subunits...
August 2017: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/28658181/a-prospective-randomized-comparison-of-lower-eyelid-retraction-repair-with-autologous-auricular-cartilage-bovine-acellular-dermal-matrix-surgimend-and-porcine-acellular-dermal-matrix-enduragen-spacer-grafts
#8
Anne Barmettler, Moonseoung Heo
PURPOSE: To compare outcomes of lower eyelid retraction repair with 3 types of spacer grafts: autologous auricular cartilage, bovine acellular dermal matrix (Surgimend, Integra, Plainsboro, NJ), porcine acellular dermal matrix (Enduragen, Stryker, Kalamazoo, MI). METHODS: A prospective, randomized clinical trial was conducted in patients undergoing lower eyelid retraction repair with spacer graft. Subjects received autologous auricular cartilage, bovine acellular dermal matrix, or porcine acellular dermal matrix between June 2015 and July 2016...
June 19, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28640533/high-risk-squamous-cell-carcinoma-of-the-ear-a-potential-role-for-sentinel-node-biopsy
#9
Suzanne Beecher, Paula F Wrafter, Cormac W Joyce, Padraic J Regan, Jack L Kelly
BACKGROUND: Squamous cell carcinomas (SCCs) of the external ear have a significant rate of metastasis. The purpose of this study was to present analyzed factors associated with auricular SCC metastasis in order to identify a group that may benefit from sentinel lymph node biopsy (SLNB). METHODS: We performed a retrospective review of all operable SCCs between 2009 and 2014. The association between high-risk features and metastasis were analyzed. RESULTS: One hundred eighty-nine auricular SCCs were excised...
June 22, 2017: Head & Neck
https://www.readbyqxmd.com/read/28603215/well-differentiated-liposarcoma-with-chondroid-metaplasia-in-the-auricle-of-a-dog
#10
Nagi Tomita, Yuji Sunden, Yoshiharu Okamoto, Takehito Morita
A13-year-old spayed female dog had a mass in the left auricle. Grossly, connection between the mass and original auricular cartilage was not recognized. The mass was unencapsulated and contained multiple islands of mature hyaline cartilage and neoplastic adipocytes. The neoplastic cells comprised predominant mature adipocytes, scattered lipoblasts and irregular round to spindle cells with moderate atypia. The atypical cells occasionally had lipid droplets. A diagnosis of well-differentiated liposarcoma (WDL) with chondroid metaplasia was made...
June 11, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28583280/clinical-value-of-fdg-pet-ct-for-the-evaluation-of-rheumatic-diseases-rheumatoid-arthritis-polymyalgia-rheumatica-and-relapsing-polychondritis
#11
REVIEW
Kazuo Kubota, Hiroyuki Yamashita, Akio Mimori
FDG is a tracer for visualizing glucose metabolism. PET/CT using FDG is widely used for the diagnosis of cancer, because glycolysis is elevated in cancer cells. Similarly, active inflammatory tissue also exhibits elevated glucose metabolism because of glycolysis in activated macrophages and proliferating fibroblasts. Elevated FDG uptake by active inflammatory tissues, such as those affected by arthritis, vasculitis, lymphadenitis, and chondritis, has enabled the diagnosis of inflammatory diseases using FDG-PET/CT...
July 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28574571/roles-of-macrophage-migration-inhibitory-factor-in-cartilage-tissue-engineering
#12
Yuko Fujihara, Atsuhiko Hikita, Tsuyoshi Takato, Kazuto Hoshi
To obtain stable outcomes in regenerative medicine, understanding and controlling immunological responses in transplanted tissues are of great importance. In our previous study, auricular chondrocytes in tissue-engineered cartilage transplanted in mice were shown to express immunological factors, including macrophage migration inhibitory factor (MIF). Since MIF exerts pleiotropic functions, in this study, we examined the roles of MIF in cartilage regenerative medicine. We made tissue-engineered cartilage consisting of auricular chondrocytes of C57BL/6J mouse, atellocollagen gel and a PLLA scaffold, and transplanted the construct subcutaneously in a syngeneic manner...
June 2, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28552866/meningeal-plasma-cell-granuloma-in-the-early-stage-of-relapsing-polychondritis
#13
Shintaro Hayashi, Norihiko Akao, Koichi Okamoto
A 77-year-old man showed an asymptomatic meningeal lesion beneath the dura matter in the left fronto-parietal region on MRI during an examination for recurrent hoarsness. The lesion showed no gadolinium enhancement, and extended to neither the sulci nor skull. Neurological examinations revealed hoarseness, cochlear and vestibular dysfunction of the right ear, and mildly decreased Achilles tendon reflexes bilaterally. Laboratory findings showed marked inflammatory responses, but no abnormalities for LDH, IgG4, angiotensin-converting enzyme, or soluble IL-2 receptor...
May 26, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28539839/ppard-is-an-inhibitor-of-cartilage-growth-in-external-ears
#14
Zhen Zhang, Yanyu Duan, Zhongping Wu, Hui Zhang, Jun Ren, Lusheng Huang
Peroxisome proliferator-activated receptor beta/delta (PPARD) is an important determinant of multiple biological processes. Our previous studies identified a missense mutation in the PPARD gene that significantly reduces its transcription activity, and consequently causes enlarged external ears in pigs. However, the mechanisms underlying the causality has remained largely unknown. Here, we show that PPARD retards the development of auricular cartilage by accelerating the apoptosis of cartilage stem/progenitor cells (CSPCs), the terminal differentiation of cartilage cells and the degradation of cartilage extracellular matrix in the auricle...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28524733/cartilage-engineering-in-reconstructive-surgery-auricular-nasal-and-tracheal-engineering-from-a-surgical-perspective
#15
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/28493212/composite-bioscaffolds-incorporating-decellularized-ecm-as-a-cell-instructive-component-within-hydrogels-as-in-vitro-models-and-cell-delivery-systems
#16
Arthi Shridhar, Elizabeth Gillies, Brian G Amsden, Lauren E Flynn
Decellularized tissues represent promising biomaterials, which harness the innate capacity of the tissue-specific extracellular matrix (ECM) to direct cell functions including stem cell proliferation and lineage-specific differentiation. However, bioscaffolds derived exclusively from decellularized ECM offer limited versatility in terms of tuning biomechanical properties, as well as cell-cell and cell-ECM interactions that are important mediators of the cellular response. As an alternative approach, in the current chapter we describe methods for incorporating cryo-milled decellularized tissues as a cell-instructive component within a hydrogel carrier designed to crosslink under mild conditions...
May 11, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28462782/regeneration-of-subcutaneous-tissue-engineered-mandibular-condyle-in-nude-mice
#17
Feiyu Wang, Yihui Hu, Dongmei He, Guangdong Zhou, Xiujuan Yang, Edward Ellis
PURPOSE: To explore the feasibility of regenerating mandibular condyles based on cartilage cell sheet with cell bone-phase scaffold compared with cell-biphasic scaffolds. MATERIALS AND METHODS: Tissue-engineered mandibular condyles were regenerated by the following: 1) cartilage cell sheet + bone-phase scaffold (PCL/HA) seeded with bone marrow stem cells (BMSCs) from minipigs (cell sheet group), and 2) cartilage phase scaffold (PGA/PLA) seeded with auricular chondrocytes + bone-phase scaffold seeded with BMSCs from minipigs (biphasic scaffold group)...
June 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28445373/auricular-reconstruction-in-hemifacial-microsomia-with-an-expanded-two-flap-method
#18
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/28445368/correcting-concavity-of-rabbit-auricular-cartilage-comparison-of-single-scoring-incisions-with-butyl-cyanoacrylate-aided-techniques
#19
COMPARATIVE STUDY
Yalcin Yontar, İrfan Özyazgan
BACKGROUND: The authors present the results of an experimental study in which four different techniques were used for the correction of concave rabbit auricular cartilage. METHODS: Sixteen New Zealand adult male rabbits were used in the study. Butyl cyanoacrylate-aided cartilage graft fixation and butyl cyanoacrylate-aided bone graft fixation and scoring technique, alone or combined with butyl cyanoacrylate application, were performed to correct the concavity of rabbit auricular cartilage...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28430334/chondro-keratoprosthesis-an-alternative-to-ookp
#20
Louis Hoffart, Laurent Guyot
PURPOSE: To evaluate the use of cartilage as a potential graft material toward osteo-odontal tissue replacement in keratoprosthesis surgery. METHODS: We describe a modification of the osteo-odonto-keratoprosthesis surgery that involves the use of autologous auricular conchal cartilage graft (ACCG). In stage 1a, a full-thickness cheek mucosa graft was performed over the ocular surface. In stage 1b, ACCG was harvested via a retroauricular approach. An optical polymethyl-methacrylate cylinder was embedded into a double-layered fragment of cartilage and secured by cyanoacrylate glue...
April 4, 2017: European Journal of Ophthalmology
keyword
keyword
86076
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"