Cartilage Scales Embedded in Fibrin Gel

2017 ◽  
Vol 33 (02) ◽  
pp. 225-232 ◽  
Author(s):  
Milos Kovacevic ◽  
Frank Riedel ◽  
Jochen Wurm ◽  
Gregor Bran
Keyword(s):  
Regenerative Medicine ◽  
Surgical Techniques ◽  
Fibrin Gel ◽  
Platelet Rich Fibrin ◽  
Preliminary Results ◽  
Advantages And Disadvantages ◽  
The Past ◽  
Dorsal Nasal Augmentation ◽  
Diced Cartilage ◽  
Nasal Augmentation

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. A mix of cartilage scales with cartilage pâté was embedded in platelet-rich fibrin (PRF). Since December 2015, a total of 48 patients were treated with this technique. Based on our preliminary results, cartilage scales in PRF appear to be a promising and reliable alternative to existing procedures for dorsal nasal augmentation.

Versatility of Diced Cartilage–Fascia Grafts in Dorsal Nasal Augmentation

2007 ◽  
Vol 120 (6) ◽  
pp. 1654-1659 ◽  
Author(s):  
Martin H. Kelly ◽  
Neil W. Bulstrode ◽  
Norman Waterhouse
Keyword(s):  
Dorsal Nasal Augmentation ◽  
Diced Cartilage ◽  
Nasal Augmentation

scholarly journals Treatment Modalities for Multiple Gingival Recession– A New Prospects

2021 ◽  
pp. 65-83
Author(s):  
Ena Sharma ◽  
Amit Lakhani ◽  
Rasveen Kaur ◽  
Ravneet Kaur
Keyword(s):  
Soft Tissues ◽  
Surgical Techniques ◽  
Case Series ◽  
Multiple Root ◽  
Gingival Recession ◽  
Long Term Results ◽  
Treatment Modalities ◽  
Platelet Rich Fibrin ◽  
Advantages And Disadvantages ◽  
Wide Range

This case series reports the various treatment modalities to treat the multiple recessions. Gingival recession is a widespread clinical manifestation affecting single or multiple root surfaces at all teeth types. Periodontal reconstructive surgery consists of various mucogingival procedures. The primary goal of these procedures is to benefit periodontal health through the reconstruction of lost hard and soft tissues, or by preventing its additional loss, and also enhancing the esthetic appearance. Platelet-rich fibrin is a second generation platelet concentrate and is defined as an autologous leukocyte and platelet-rich fibrin biomaterial. Care was taken not to extend the incisions till the tip of the interdental papilla. A full thickness mucoperiosteal flap was reflected, extending beyond the mucogingival junction. A wide range of surgical techniques has been proposed for the treatment of the gingival recessions, each with its advantages and disadvantages. To provide predictable and long-term results, it is of paramount importance that the surgical technique is individually selected, taking into account several crucial factors such as the size of the defect, the width of the keratinised gingiva apical to the defect and the thickness of the flap.

Perichondrial Attached Diced Cartilage (PADC), a Novel Graft Material for Nasal Augmentation: 10 Years of Experience

2021 ◽  
Author(s):  
Abbas Kazemi Ashtiani ◽  
Mohammad Reza Moghimi ◽  
Farhad Hafezi
Keyword(s):  
Donor Site ◽  
Donor Site Morbidity ◽  
Septal Cartilage ◽  
Graft Material ◽  
Successful Operation ◽  
Dorsal Nasal Augmentation ◽  
New Material ◽  
Surgical Field ◽  
Diced Cartilage ◽  
Nasal Augmentation

Abstract Background Using onlay graft for dorsal augmentation is a challenging procedure. Visibility and warping of grafted cartilages can ruin an otherwise successful operation. A shortage of septal cartilage and rib donor site morbidity compounds the problems of this procedure. Objectives Our objectives were to find an autologous material for dorsal nasal augmentation which does not disperse upon implementation. It also should have minimal resorption, lack of warping and no need for wrapping membrane. Methods In 30 patients, concha cartilage of the ear with attached perichondrium and fascia were removed. The concha cartilage was diced while it was attached to the posterior soft tissue. The purpose was to develop graft material for dorsal augmentation. Results In an average of 19.56 months follow-up, no sign of resorption, infection, inflammation, volume loss, or displacement of the grafted material was noticed. Aesthetically the results were acceptable and most of the patients were satisfied with the outcome. Conclusions Perichondrial attached diced cartilage (PADC) is a new material for the rhinoplasty surgeon to apply in different onlay nasal augmentation procedures in the unduly reduced nasal dorsum. This technique transforms an uneven peculiar-shaped concha cartilage to flexible, versatile, and durable material. The donor site is in the surgical field and easy to access.

Diced Cartilage Grafts Wrapped in AlloDerm for Dorsal Nasal Augmentation

2011 ◽  
Vol 22 (4) ◽  
pp. 1196-1199 ◽  
Author(s):  
Chad R. Gordon ◽  
Mohammed Alghoul ◽  
Jonathan S. Goldberg ◽  
Mutaz B. Habal ◽  
Francis Papay
Keyword(s):  
Cartilage Grafts ◽  
Dorsal Nasal Augmentation ◽  
Diced Cartilage ◽  
Nasal Augmentation

Granular bainite or granular ferrite? A preliminary TEM investigation of an HSLA-100 steel

1991 ◽  
Vol 49 ◽  
pp. 584-585
Author(s):  
R. Varughese ◽  
S. W. Thompson ◽  
P. R. Howell
Keyword(s):  
Room Temperature ◽  
Transformation Products ◽  
Accurate Description ◽  
Granular Bainite ◽  
Preliminary Results ◽  
The Past ◽  
Light Micrograph ◽  
Multiphase Reaction ◽  
Detailed Nature

Ever since Habraken and Economopoulos first employed the term granular bainite to classify certain unconventional transformation products in continuously cooled steels, the term has been widely accepted and used, despite the lack of a clear consensus as to the detailed nature of the transformation products which constitute granular bainite. This paper presents the preliminary results of a TEM investigation of an 0.04 wt% C, copper-containing steel (designated HSLA-100). It is suggested that the term granular ferrite rather than granular bainite is a more accurate description of this multiphase reaction product.Figure 1 is a light micrograph of a sample which had been air-cooled from 900°C to room temperature. The microstructure is typical of that which has been termed granular bainite in the past and appears to consist of equiaxed ferritic grains together with other minor transformation products. In order to examine these structures in more detail, both continuously cooled and isothermally transformed and quenched materials have been examined with TEM. Granular bainite has been found in virtually all samples.

PERFUSION OF OVARIES IN VITRO AND IN VIVO

1972 ◽  
Vol 68 (2_Supplb) ◽  
pp. S285-S309 ◽  
Author(s):  
Kurt Ahrén ◽  
Per Olof Janson ◽  
Gunnar Selstam
Keyword(s):  
Perfusion System ◽  
Perfusion Technique ◽  
Preliminary Results ◽  
Advantages And Disadvantages

ABSTRACT This paper discusses in vivo and in vitro ovarian perfusion systems described so far in the literature. The interest is not focussed primarily on the results of these studies but rather on the advantages and disadvantages of the techniques and methods used. Another part of the paper summarizes the points which are most important, in our opinion, to take into consideration when developing an in vitro perfusion technique of the ovary. The last part of the paper gives a description of and some preliminary results from an in vitro perfusion system of the rabbit ovary which is under development in this laboratory.

scholarly journals Laser therapy of chronic inflammatory diseases of the uterine appendages

2004 ◽  
Vol 53 (4) ◽  
pp. 76-81
Author(s):  
E. F. Condrina ◽  
G. N. Ponomarenko
Keyword(s):  
Laser Therapy ◽  
Inflammatory Diseases ◽  
Scientific Publications ◽  
Chronic Inflammatory Diseases ◽  
Advantages And Disadvantages ◽  
Low Intensity ◽  
The Past ◽  
Low Intensity Laser Therapy ◽  
Different Characteristics ◽  
Intensity Laser

This article provides an overview of scientific publications by domestic and foreign authors over the past 10 years, devoted to the problem of using low-intensity laser therapy in the treatment of chronic inflammatory diseases of the uterine appendages; the analysis of indications and contraindications, advantages and disadvantages of using laser radiation with different characteristics in the treatment of chronic salpingo-oophoritis was carried out; the most significant aspects of the influence of laser therapy on the main pathogenetic mechanisms of the development of the inflammatory process of the uterine appendages are highlighted.

scholarly journals Combined Replacement of Aortic Valve and Ascending Aorta—A 70-Year Evolution of Surgical Techniques

Aorta ◽  
2021 ◽  
Author(s):  
Igor Vendramin ◽  
Uberto Bortolotti ◽  
Davide Nunzio De Manna ◽  
Andrea Lechiancole ◽  
Sandro Sponga ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Elderly Patients ◽  
Aortic Valve Disease ◽  
Surgical Techniques ◽  
Ascending Aorta ◽  
Valve Disease ◽  
Long Term Results ◽  
The Past ◽  
Technical Advances

AbstractSimultaneous replacement of the ascending aorta and aortic valve has always been a challenging procedure. Introduction of composite conduits, through various ingenious procedures and their modifications, has changed the outlook of patients with aortic valve disease and ascending aorta pathology. In the past 70 years, progress of surgical techniques and prosthetic materials has allowed such patients to undergo radical procedures providing excellent early and long-term results in both young and elderly patients. This article aims to review the most important technical advances in the treatment of aortic valve disease and ascending aorta aneurysms recognizing the important contributions in this field.

scholarly journals The application of C2 transpedicular screw, C1 laminar hook fixation and bone graft in the atlantoaxial instability

2021 ◽  
Vol 38 (2) ◽  
pp. 94-98
Author(s):  
Şükrü ORAL
Keyword(s):  
Motor Vehicle ◽  
Motor Vehicle Accident ◽  
Surgical Techniques ◽  
Atlantoaxial Instability ◽  
Posterior Arch ◽  
X Rays ◽  
Advantages And Disadvantages ◽  
Transpedicular Screw ◽  
Flexion Extension ◽  
Laminar Hooks

Traumatic atlantoaxial instability usually results from a motor vehicle accident, falls and motorcycle accidents. Atlantoaxial instability can lead to spinal cord compression and neck pain, but, spasticity and radicular symptoms as well. The purpose of surgery is to remove the compression and stabilize the joint permanently. To date, several surgical techniques have been described to remedy C1-C2 instability. In this study, the clinical and radiological outcomes of patients who operated with the C1 (Atlas bone) laminar hooks fixation and bilateral C2 (Axis bone) trans-pedicular screw technique were shown. Also, the advantages and disadvantages of this technique are discussed. From March 2010 to December 2017, 12 patients who have atlantoaxial instability were surgically treated by modified fixation technique which consists C1 laminar hooks fixation and bilateral C2 transpedicular screw. Twelve patients were operated with this procedure from March 2010 to December 2017. All the patients were checked with flexion-extension x-rays at the end of the twelfth week. The posterior bony fusion formation was observed on imaging in all patients. C2 bilateral pedicle screw combined with C1 laminar hook system is a good method for atlantoaxial instability in the conditions which is not convenient for insertion of C1 lateral mass and C2 trans-articular screw. However, this method may not be available in some cases such as traumatic, infection, neoplastic or degenerative pathologies in which the posterior arch of the atlas is damaged.

An Overview of Learning Management Systems

2010 ◽  
pp. 1-19 ◽  
Author(s):  
Anthony A. Piña
Keyword(s):  
Open Source ◽  
Learning Management Systems ◽  
Macro Level ◽  
Management Systems ◽  
Common Features ◽  
Advantages And Disadvantages ◽  
The Past ◽  
The Common ◽  
Learning Management

In this chapter, the reader is taken through a macro level view of learning management systems, with a particular emphasis on systems offered by commercial vendors. Included is a consideration of the growth of learning management systems during the past decade, the common features and tools contained within these systems, and a look at the advantages and disadvantages that learning management systems provide to institutions. In addition, the reader is presented with specific resources and options for evaluating, selecting and deploying learning management systems. A section highlighting the possible advantages and disadvantages of selecting a commercial versus an open source system is followed by a series of brief profiles of the leading vendors of commercial and open source learning management systems.

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