Ilizarov Method Extremity Solution for Severe Damage, Obtain Bone, and Soft Tissues Stability

2015 ◽  
pp. 1-12
Author(s):  
León Gonzalo Mora
Keyword(s):  
Soft Tissues ◽  
Ilizarov Method ◽  
Severe Damage

scholarly journals Ankle arthrodesis via a transfibular approach and circular external fixation

2019 ◽  
Vol 13 (2) ◽  
pp. 104-111
Author(s):  
Vinícius Felipe Pereira ◽  
Vitor Yoshiura Masuda ◽  
Hilário Boatto ◽  
Hélio Da Cunha Pereira Junior ◽  
José Carlos Figueiredo Fernandes Junior ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Case Series ◽  
Ankle Arthrodesis ◽  
Functional Restoration ◽  
Ilizarov Method ◽  
Level Of Evidence ◽  
Circular External Fixator ◽  
Ilizarov Apparatus ◽  
Vas Scores

Objective: To present the radiographic and functional outcomes of a series of 11 cases of ankle arthrodesis performed with a circular external fixator using the Ilizarov method and a transfusion approach, conducted between January 2017 and June 2018. Methods: The patients were evaluated according to American Orthopedic Foot and Ankle Society (AOFAS) and visual analogue scale (VAS) scores. Ankle radiographs were evaluated on anteroposterior and profile views. All patients underwent a similar procedure regarding the surgical approach and assembly of the Ilizarov apparatus. Results: Eleven patients, with a mean age of 44.81 years (28-70 years), underwent surgery. The average follow-up time was 50.81 weeks (13-90 weeks). The main indication for surgery was post-traumatic secondary arthritis. The mean functional AOFAS score was 55.72 (45-64) points. An evaluation of the soft tissues revealed surgical wound healing of the transfibular approach in 9 patients (81%). All cases showed signs of superficial pin- or wire-tract infection. Union was reported in 10 patients (90.9%), and the radiographic varus deformities found in 2 patients did not exceed 7º. No additional surgical procedure was required during follow-up. Conclusion: Ankle arthrodesis performed by a transfibular approach and fixation performed by the Ilizarov method were efficient, promoted the functional restoration of the patient, considering the complexity of the cases, and resulted in a high union rate. Level of Evidence IV; Therapeutic Studies; Case Series.

Unfavorable Experience with Hypofractionated Radiotherapy in Unresectable Lung Cancer

1992 ◽  
Vol 78 (5) ◽  
pp. 305-310 ◽  
Author(s):  
Luigi Pirtoli ◽  
Mirco Bindi ◽  
Antonio Bellezza ◽  
Fiorella Pepi ◽  
Enrico Tucci
Keyword(s):  
Lung Cancer ◽  
Adverse Effects ◽  
Soft Tissues ◽  
Performance Status ◽  
Hypofractionated Radiotherapy ◽  
Advanced Lung Cancer ◽  
Severe Damage ◽  
Lung Cancer Patients ◽  
Therapeutic Results ◽  
And Performance

The use of a reduced number of large-sized fractions in radiotherapy (hypofractionation) is usually associated with poor therapeutic results and severe adverse effects, in accord with radiobiologic concepts. However by some authors unresectable lung cancer patients have been treated with hypofractionated radiotherapy with the main aim of « convenience ». Result and damage rates are reported to be comparable to those of conventional treatment. In our experience, based on palliative irradiation of 86 advanced-stage, nonmicrocytoma patients, objective remission rates, subjective and performance status improvement, and survival overall were as poor as could be expected in this kind of presentation, with no striking impact of this treatment modality. Severe adverse effects were shown by a large proportion of cases involving skin and soft tissues of the chest wall (40 %) and lungs (55.5 %). The incidence of severe damage was in agreement with BED (biologic effective dose) values, differently from other experiences of radiotherapeutic management of advanced lung cancer with large fractions.

scholarly journals History of the Ilizarovs wire-fixator, stages of hand surgery development at the Ilizarov Center

2021 ◽  
Vol 27 (3) ◽  
pp. 299-306
Author(s):  
V.I. Shevtsov ◽  
◽  
A.P. Kirienko ◽  
N.G. Shikhaleva ◽  
K.I. Novikov ◽  
...  
Keyword(s):  
Medical Care ◽  
Significant Contribution ◽  
Soft Tissues ◽  
Hand Surgery ◽  
Ilizarov Method ◽  
Stages Of Development ◽  
Hand Bones ◽  
Combined Use ◽  
History Of ◽  
Tubular Bones

Introduction Hand surgery has its own history in each country which is done by outstanding doctors and scientists. Аcademician G.A. Ilizarov, the founder of transosseous osteosynthesis, is one of such personalities. Purpose of the work To analyze the stages of development and application of transosseous osteosynthesis in hand surgery, proposed by Academician G.A. Ilizarov. Methods The process of creation and development of transosseous osteosynthesis for short tubular bones was analyzed. We present the main designs and developers of the inventions related to extrafocal osteosynthesis of hand bones. The structural divisions of the Ilizarov Center, in which medical care was provided to the patients with hand pathology, were stated. Results The entire existence and active use of the Ilizarov mini-fixator can be represented by five periods, starting from the period of comprehending the need for its design. Currently, we are in the period of its combined use in conjunction with the reconstruction of hand soft tissues. Conclusion The names of scientists who have made a significant contribution to the development of the Ilizarov method of transosseous osteosynthesis for the hand surgery were given in the final summary. Thanks to the results of their work, we have the opportunity to further develop hand surgery in accordance with the contemporary scientific requirements

Results of the Treatment of Infected Nonunions of the Lower Limbs Using the Ilizarov Method

2017 ◽  
Vol 19 (2) ◽  
pp. 111-125 ◽  
Author(s):  
Marek Dróżdż ◽  
Stanisław Rak ◽  
Paweł Bartosz ◽  
Jerzy Białecki ◽  
Wojciech Marczyński
Keyword(s):  
Soft Tissues ◽  
Bone Fractures ◽  
Good Condition ◽  
High Energy ◽  
Bone Transport ◽  
Lower Limbs ◽  
Bone Union ◽  
Long Bone ◽  
Ilizarov Method ◽  
Infected Nonunion

Background. Infected nonunion is a complex complication of the treatment of long bone fractures. An in creased incidence of injuries, including high energy injuries (often open ones), contributes to a higher incidence of nonunion. These primarily infected injuries cause osteomyelitis, which prevents bone union, resulting in an infected nonunion. The Ilizarov method meets the biological and biomechanical treatment requirements, opti mising the process of inflammation healing and producing bone union. Material and methods. A total of 54 patients were treated in 2000–2014 for nonunion in the lower limbs with the Ilizarov method, which was used after previous treatment had failed. The subjects underwent intra operative resection of the locus of infection, sequestrectomy and a Judet procedure, followed by the use of the Ilizarov apparatus and bone transport, depending on the defect. Results. Inflammation healed in 52 patients (96%) and bone union was achieved in 46 patients (86%). Good outcomes with healed inflammation and bone union were reported in 76% of the cases, fair outcomes with tem porary elimination of the inflammation and without bone union in 16%, and poor outcomes without inflam ma tion healing and without bone union in 7%. Conclusions. Treatment of infected nonunion can only be effective after eliminating endogenous inflamma tory foci, covering skin defects, ensuring a good condition of the skin and soft tissues, restoring normal blood supply to the bone fragments, and good biomechanical fixation of the fragments with dynamisation or compression. The Ilizarov method is a method of choice in the treatment of cases of infected nonunion where other treatments have failed.

Rapid Critical Point Drying of Tissues in a Parr Bomb

1972 ◽  
Vol 30 ◽  
pp. 400-401
Author(s):  
C.A. Baechler ◽  
W. C. Pitchford ◽  
J. M. Riddle ◽  
C.B. Boyd ◽  
H. Kanagawa ◽  
...  
Keyword(s):  
Critical Point ◽  
Critical Pressure ◽  
Soft Tissues ◽  
Biological Tissues ◽  
Critical Temperatures ◽  
Air Drying ◽  
The Past ◽  
Critical Point Drying ◽  
Great Stress ◽  
Infiltration Techniques

Preservation of the topographic ultrastructure of soft biological tissues for examination by scanning electron microscopy has been accomplished in the past by using lengthy epoxy infiltration techniques, or dehydration in ethanol or acetone followed by air drying. Since the former technique requires several days of preparation and the latter technique subjects the tissues to great stress during the phase change encountered during air-drying, an alternate rapid, economical, and reliable method of surface structure preservation was developed. Turnbill and Philpott had used a fluorocarbon for the critical point drying of soft tissues and indicated the advantages of working with fluids having both moderately low critical pressures as well as low critical temperatures. Freon-116 (duPont) which has a critical temperature of 19. 7 C and a critical pressure of 432 psi was used in this study.

SEM analysis of fish scale cross sections: A technique study

1992 ◽  
Vol 50 (1) ◽  
pp. 744-745
Author(s):  
M.E. Lee ◽  
A. Moller ◽  
P.S.O. Fouche ◽  
I.G Gaigher
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Cross Sections ◽  
Soft Tissues ◽  
Close Association ◽  
Sem Analysis ◽  
Fish Scale ◽  
Fish Scales ◽  
Micro Structures ◽  
Scanning Electron

Scanning electron microscopy of fish scales has facilitated the application of micro-structures to systematics. Electron microscopy studies have added more information on the structure of the scale and the associated cells, many problems still remain unsolved, because of our incomplete knowledge of the process of calcification. One of the main purposes of these studies has been to study the histology, histochemistry, and ultrastructure of both calcified and decalcified scales, and associated cells, and to obtain more information on the mechanism of calcification in the scales. The study of a calcified scale with the electron microscope is complicated by the difficulty in sectioning this material because of the close association of very hard tissue with very soft tissues. Sections often shatter and blemishes are difficult to avoid. Therefore the aim of this study is firstly to develop techniques for the preparation of cross sections of fish scales for scanning electron microscopy and secondly the application of these techniques for the determination of the structures and calcification of fish scales.

Ultrastructure of the lesion induced by toxin T-514 isolated from K. humboldtiana in the alveolar region of the lung

1992 ◽  
Vol 50 (1) ◽  
pp. 640-641
Author(s):  
Julio Sepúlveda-Saavedra ◽  
Beatriz González-Corona ◽  
Víctor A. Tamez Rodríguez ◽  
Ma. Victoria Bermúdez de Rocha ◽  
Alfredo Piñeyro López
Keyword(s):  
Electron Microscope ◽  
Guinea Pig ◽  
Macaca Fascicularis ◽  
Osmium Tetroxide ◽  
Lead Citrate ◽  
Severe Damage ◽  
Thin Sections ◽  
Alveolar Region ◽  
Histopathological Findings

It has been shown in previous studies that the toxin T-514 isolated from K. humboldtiana induces severe damage to the lung in treated rodents. Histopathological findings include edema, and alveolar hemorrage. However, the ultraestructure of the lesion has not been investigated. In this study we used two species of rodents: Hamster and guinea pig, and a primate: Macaca fascicularis. Animals received different single dosis of the toxin via intraperitoneal. Control animals received only the vehicle (propylen glycol). Inmediately after spontaneous death, lung samples were fixed in Karnovsky-Ito fixative, post fixed in osmium tetroxide and embedded in epon. Thin sections were prepared with an Ultratome V LKB, stained with uranly acetate and lead citrate, and studied in an electron microscope Zeiss-EM109.

Biological and biomedical applications of collagenous biomaterials

1990 ◽  
Vol 48 (3) ◽  
pp. 856-857
Author(s):  
Yasushi P. Kato ◽  
Michael G. Dunn ◽  
Frederick H. Silver ◽  
Arthur J. Wasserman
Keyword(s):  
Biomedical Applications ◽  
Soft Tissues ◽  
Collagen Fibers ◽  
Bone Collagen ◽  
Cover Slip ◽  
Fibroblast Migration ◽  
Cellular Expression ◽  
Defect Repair

Collagenous biomaterials have been used for growing cells in vitro as well as for augmentation and replacement of hard and soft tissues. The substratum used for culturing cells is implicated in the modulation of phenotypic cellular expression, cellular orientation and adhesion. Collagen may have a strong influence on these cellular parameters when used as a substrate in vitro. Clinically, collagen has many applications to wound healing including, skin and bone substitution, tendon, ligament, and nerve replacement. In this report we demonstrate two uses of collagen. First as a fiber to support fibroblast growth in vitro, and second as a demineralized bone/collagen sponge for radial bone defect repair in vivo.For the in vitro study, collagen fibers were prepared as described previously. Primary rat tendon fibroblasts (1° RTF) were isolated and cultured for 5 days on 1 X 15 mm sterile cover slips. Six to seven collagen fibers, were glued parallel to each other onto a circular cover slip (D=18mm) and the 1 X 15mm cover slip populated with 1° RTF was placed at the center perpendicular to the collagen fibers. Fibroblast migration from the 1 x 15mm cover slip onto and along the collagen fibers was measured daily using a phase contrast microscope (Olympus CK-2) with a calibrated eyepiece. Migratory rates for fibroblasts were determined from 36 fibers over 4 days.

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