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Cartilage graft

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https://www.readbyqxmd.com/read/28439305/costal-cartilage-transplantation-for-treatment-of-growth-plate-injury-in-a-rabbit-model
#1
D Otsuki, K Yoshida, M Kobayashi, D Hamano, C Higuchi, H Yoshikawa
OBJECTIVES: The purpose of this study is to evaluate the effects of allogenic costal cartilage transplantation on preventing bony bridge formation and angular deformities for the treatment of partial growth plate injury using a rabbit model. METHODS: An experimental model of partial growth injury was created by resecting the medial part of the proximal tibial growth plate in male six-week-old New Zealand White rabbits. The rabbits were divided into four groups: no surgery; no transplantation; bone wax transplantation; and allogenic costal cartilage transplantation...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28433516/intravenous-mesenchymal-stromal-cell-therapy-for-inflammatory-bowel-disease-lessons-from-the-acute-graft-versus-host-disease-experience
#2
REVIEW
Laurie S Conklin, Patrick J Hanley, Jacques Galipeau, John Barrett, Cather M Bollard
Bone marrow-derived mesenchymal stromal cells (BMSCs) are primitive, supportive cells of the bone marrow with tri-lineage potential to differentiate into bone, cartilage, fat and muscle. These cells possess both in vitro and in vivo immunomodulatory and wound-healing properties. Several studies have demonstrated efficacy of intravenously administered BMSCs in treating acute graft-versus-host disease (GvHD). Use of intravenous (IV) BMSCs in inflammatory bowel diseases (IBD) in humans has been limited to small studies in adults, but results have been promising...
April 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28432416/commentary-on-3d-photogrammetric-analysis-of-the-nasal-tip-projection-and-derotation-based-on-the-nasal-tip-quadripod-concept
#3
Cerkes Nazım
Asian noses are mainly characterized by a low nasal dorsum, a short nose and an underprojected nasal tip due to underdeveloped (short and weak) alar cartilages. The goals of the surgery are to increase the tip projection, elongate the nose and augment the dorsum. In Asian noses the structural approach helps strengthen the weak cartilages and add definition to the nasal tip. There are various methods to increase tip projection and definition. Columellar strut, caudal septal extension graft, tip grafts and lateral crural grafts in order to elongate the upper legs of the nasal tip tripod can be used...
April 21, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28430334/chondro-keratoprosthesis-an-alternative-to-ookp
#4
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
https://www.readbyqxmd.com/read/28426243/analysis-of-2019-patients-undergoing-revision-anterior-cruciate-ligament-reconstruction-from-a-community-based-registry
#5
Afshin Arianjam, Maria C S Inacio, Tadashi T Funahashi, Gregory B Maletis
BACKGROUND: Knowledge of patient characteristics, surgical fixation, graft choice, outcomes, and concurrent injuries of revision anterior cruciate ligament reconstruction (ACLR) is limited. PURPOSE: To describe the current cohort of revision ACLR captured by a community registry and the outcomes observed in the registered patients. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Patients who underwent revision ACLR registered between February 2005 and June 2014, by 200 surgeons in 46 hospitals, were evaluated...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28419816/high-rate-of-osteoarthritis-after-osteochondritis-dissecans-fragment-excision-compared-with-surgical-restoration-at-a-mean-16-year-follow-up
#6
Thomas L Sanders, Ayoosh Pareek, Mitchel R Obey, Nicholas R Johnson, James L Carey, Michael J Stuart, Aaron J Krych
BACKGROUND: Osteochondritis dissecans (OCD) is a disorder of subchondral bone that causes adverse effects on the overlying cartilage and commonly affects the knee. The incidence of OCD and its long-term effect on the knee joint are controversial. Hypothesis/Purpose: The purpose of this study was to (1) evaluate the rate of osteoarthritis and knee arthroplasty in a population-based cohort of patients with OCD lesions treated operatively and (2) evaluate factors that may predispose patients to knee osteoarthritis and arthroplasty...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28419808/outcomes-after-1-stage-versus-2-stage-revision-anterior-cruciate-ligament-reconstruction
#7
Justin J Mitchell, Jorge Chahla, Chase S Dean, Mark Cinque, Lauren M Matheny, Robert F LaPrade
BACKGROUND: Revision anterior cruciate ligament reconstruction (ACLR) is becoming increasingly common as the number of primary ACLR cases continues to rise. Despite this, there are limited data on the outcomes of revision ACLR and even less information specifically addressing the differences in 1-stage revision reconstruction versus those performed in a 2-stage fashion after primary reconstruction. PURPOSE: To compare the outcomes, patient satisfaction, and failure rates of 1-stage versus 2-stage revision ACLR...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28412106/radial-notch-labralization-for-proximal-radioulnar-joint-dysplasia
#8
Enrico Bellato, Shawn W O'Driscoll
BACKGROUND: Chronic posterior subluxation or dislocation of the radial head is uncommon and difficult to treat. To restore radiocapitellar alignment, procedures such as deepening of the notch using a high-speed burr have been described, but they can result in cartilage damage. We hypothesized that a radial notch labralization using soft tissue could improve radiocapitellar tracking without violating the joint surface. METHODS: A radial notch labralization was performed in 3 patients with chronic posterior subluxation of the radial head and developmental dysplasia of the radial notch in the setting of complex recurrent instability of the elbow...
April 12, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28401159/management-of-hepple-stage-v-osteochondral-lesion-of-the-talus-with-a-platelet-rich-plasma-scaffold
#9
Wenqi Gu, Tanzhu Li, Zhongmin Shi, Guohua Mei, Jianfeng Xue, Jian Zou, Xiaokang Wang, Haotong Zhang, Hongwei Xu
There has been no consensus on the treatment or prognosis of Hepple stage V osteochondral lesions of the talus (OLTs), especially for lesions greater than 1.5 cm(2) in size. The objective of this study was to investigate the clinical outcomes achieved upon application of a platelet-rich plasma (PRP) scaffold with a cancellous bone autograft for Hepple stage V OLTs. Fourteen patients (mean age, 39 years) were treated with a cancellous bone graft and a PRP scaffold between 2013 and 2015. The mean time to surgical treatment was 23...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28397538/computer-aided-design-and-3-dimensional-printing-for-costal-cartilage-simulation-of-airway-graft-carving
#10
Jennifer F Ha, Robert J Morrison, Glenn E Green, David A Zopf
Autologous cartilage grafting during open airway reconstruction is a complex skill instrumental to the success of the operation. Most trainees lack adequate opportunities to develop proficiency in this skill. We hypothesized that 3-dimensional (3D) printing and computer-aided design can be used to create a high-fidelity simulator for developing skills carving costal cartilage grafts for airway reconstruction. The rapid manufacturing and low cost of the simulator allow deployment in locations lacking expert instructors or cadaveric dissection, such as medical missions and Third World countries...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28397278/polydioxanone-plates-are-safe-and-effective-for-l-strut-support-in-functional-septorhinoplasty
#11
Jennifer C Fuller, Patricia A Levesque, Robin W Lindsay
OBJECTIVES/HYPOTHESIS: To evaluate the safety, efficacy, and result stability of polydioxanone (PDS) plate use for L-strut stabilization. STUDY DESIGN: Retrospective analysis of a prospective cohort. METHODS: Patients who underwent functional septorhinoplasty with the use of PDS plates between January 2013 and January 2017 were administered the Nasal Obstruction Symptom Evaluation (NOSE) scale pre- and postoperatively at 2, 4, 6, and 12 months...
April 11, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28393052/comparison-of-temporalis-fascia-and-full-thickness-cartilage-palisades-in-type-i-underlay-tympanoplasty-for-large-subtotal-perforations
#12
Pradeep Pradhan, Abhimanyu Anant, Vellore-Pattabhiram Venkatachalam
INTRODUCTION: To demonstrate surgical techniques and to compare the anatomical and functional outcomes between temporalis fascia and cartilage palisade grafting in type-I underlay tympanoplasty in patients with large/subtotal perforation. MATERIALS AND METHODS: Temporalis fascia and cartilage palisade grafting were conducted in Group A and Group B, respectively, each containing 30 patients with large/subtotal perforations. Pure tone audiogram (PTA) and speech reception thresholds (SRT) were performed preoperatively and at each postoperative visit; i...
March 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28388803/cartilage-scales-embedded-in-fibrin-gel
#13
Milos Kovacevic, Frank Riedel, Jochen Wurm, Gregor M Bran
Multiple techniques have been described for dorsal nasal augmentation in rhinoplasty. In this article, we review common surgical techniques for raising the dorsum or eliminating dorsal irregularities, by highlighting inherent advantages and disadvantages of each method. Within the past few years, the use of diced cartilage grafts has become the workhorse in this field of interest. To overcome drawbacks of methods based on diced cartilage, we present a new concept for autologous augmentation, using regenerative medicine protocols...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28388801/safety-of-2-octyl-cyanoacrylate-in-spreader-grafting
#14
Aurora G Standlee, Marc H Hohman
Cyanoacrylate adhesives can make the placement of spreader grafts in open septorhinoplasty technically easier, but its use is off-label beneath the skin. There is a theoretical risk of toxicity from cyanoacrylate breakdown products, but this risk has not been thoroughly studied in rhinoplasty. The objective was to evaluate the effects of subcutaneous cyanoacrylate use during spreader graft placement in rhinoplasty in a retrospective review of open septorhinoplasties in which 2-octyl cyanoacrylate was used to aid placement of spreader grafts...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28388799/dorsal-augmentation-using-autologous-costal-cartilage-or-microfat-infused-soft-tissue-augmentation
#15
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
#16
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/28388795/dorsal-augmentation-diced-cartilage-techniques-the-diced-cartilage-glue-graft
#17
Abel-Jan Tasman
The quest for the ideal method for augmenting the nasal dorsum continues to be a matter of debate, with both most surgeons and patients preferring autologous tissue. This article reviews the current use of diced cartilage for nasal augmentation, emphasizing the diced cartilage in fibrin glue (DCG) graft. It offers the first collation of unfavorable outcomes and complications of the DCG graft seen in a series of 108 patients treated at the author's institution. The DCG graft continues to be a versatile graft that is stable over time and combines unique features...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28388794/correcting-deviations-of-the-lower-third-of-the-nose
#18
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
#19
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/28385238/self-crosslinking-and-injectable-hyaluronic-acid-rgd-functionalized-pectin-hydrogel-for-cartilage-tissue-engineering
#20
Feng Chen, Yunzhou Ni, Bing Liu, Tongtong Zhou, Chunyang Yu, Yue Su, Xinyuan Zhu, Xiaowei Yu, Yongfeng Zhou
In the present study, we developed a biomimetic injectable hydrogel system based on hyaluronic acid-adipic dihydrazide and the oligopeptide G4RGDS-grafted oxidized pectin, in which their hydrazide and aldehyde-derivatives enable covalent hydrazone crosslinking of polysaccharides. The hydrazone crosslinking strategy is simple, while circumventing toxicity, making this injectable system feasible, minimally invasive and easily translatable for regenerative purposes. By varying their weight ratios, the physicochemical properties of the mechanically stable hydrogel system were easily adjustable...
June 15, 2017: Carbohydrate Polymers
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