Estimation methodology of polymeric osteosynthesis outcome

2014 ◽  
Vol 18 (4 (72)) ◽  
Author(s):  
O. G. Dudko
Keyword(s):  
Postoperative Period ◽  
Metal Alloys ◽  
Late Outcome ◽  
Score System ◽  
X Ray ◽  
Polyamide 12 ◽  
Fixation Devices ◽  
Late Postoperative Period

The paper presents the methodology of estimation of early and late outcome of polymeric osteosynthesis; basic criteria’s of estimation were determined and the score system was introduced. The experience of use of fixation devices made of polyamide-12 for osteosynthesis of limbs fractures in different location was analyzed. The peculiarities of clinical and X-ray picture were discribed. Appropriateness of CAT and MRI investigation in late postoperative period was substantiated. The suggested methodology may be used for estimation of osteosynthesis results with devices made of various metal alloys and other constructive materials.

A Randomized Trial of the Long-term Effects of Digital Ocular Compression in the Late Postoperative Period

2001 ◽  
Vol 10 (4) ◽  
pp. 266-270 ◽  
Author(s):  
Jeffrey D. Henderer ◽  
Michael C. Heeg ◽  
George L. Spaeth ◽  
Marlene R. Moster ◽  
Jonathan S. Myers ◽  
...  
Keyword(s):  
Randomized Trial ◽  
Postoperative Period ◽  
Long Term Effects ◽  
Late Postoperative Period

Study in performance and morphology of polyamide 12 produced by selective laser sintering technology

2018 ◽  
Vol 24 (5) ◽  
pp. 813-820 ◽  
Author(s):  
Junjie Wu ◽  
Xiang Xu ◽  
Zhihao Zhao ◽  
Minjie Wang ◽  
Jie Zhang
Keyword(s):  
Selective Laser Sintering ◽  
Polarized Light ◽  
Chain Scission ◽  
High Energy ◽  
Laser Sintering ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Content Type ◽  
X Ray ◽  
Polyamide 12

Purpose The purpose of this paper is to investigate the effect of selective laser sintering (SLS) method on morphology and performance of polyamide 12. Design/methodology/approach Crystallization behavior is critical to the properties of semi-crystalline polymers. The crystallization condition of SLS process is much different from others. The morphology of polyamide 12 produced by SLS technology was investigated using scanning electron microscopy, polarized light microscopy, differential scanning calorimetry, X-ray diffraction and wide-angle X-ray diffraction. Findings Too low fill laser power brought about bad fusion of powders, while too high energy input resulted in bad performance due to chain scission of macromolecules. There were three types of crystal in the raw powder material, denoted as overgrowth crystal, ring-banded spherulite and normal spherulite. Originality/value In this work, SLS samples with different sintering parameters, as well as compression molding sample for the purpose of comparison, were made to study the morphology and crystal structure of sintered PA12 in detail.

Pigments analysis in cartonages of an Egyptian mummy of the Roman period using X-ray fluorescence spectrometry

2005 ◽  
Vol 80 (1) ◽  
Author(s):  
Cristiane Calza ◽  
Marcelino J. Anjos I ◽  
Sheila M.F. Mendonça de Souza ◽  
Antonio Brancaglion Jr ◽  
Ricardo T. Lopes
Keyword(s):  
Chemical Composition ◽  
Synchrotron Radiation ◽  
Fluorescence Analysis ◽  
Spectroscopic Technique ◽  
Roman Period ◽  
Metal Alloys ◽  
Egyptian Mummy ◽  
X Ray ◽  
Radiation Technique ◽  
Radiation Laboratory

This work evaluates the chemical composition of pigments used in decorative paintings in the coffin cartonage fragments and linen wrappings of an Egyptian mummy, using X-ray microfluorescence with synchrotron radiation technique. The measures were obtained at the XRF beamline of the National Synchrotron Radiation Laboratory (LNLS). This Roman period female mummy is one of the most important mummies in the National Museum because of its unconventional embalming with disarticulated legs and arms. X-ray fluorescence analysis is a widely used spectroscopic technique in archaeometry for investigating the chemical composition of pigments in manuscripts, paintings, ceramics and other artifacts, metal alloys, and stones. Knowledge of composition allows pigment characterization through major or minor constituents, and makes it possible to establish the provenance, age, and consequently, the authenticity of the artifact.

Optimization of pregravidare training of women with hysteromyoma

2017 ◽  
pp. 59-60
Author(s):  
A.A. Dovgan ◽  
Keyword(s):  
Key Words ◽  
Postoperative Period ◽  
Main Diagnosis ◽  
Advanced Technique ◽  
Late Postoperative Period

The objective: to improve tactics of pregravidare training of women with hysteromyoma. Patients and methods. Under observation there were 100 patients of active and late genesial age (from 22 to 44 years), with the main diagnosis hysteromyoma established on the basis of complex inspection. To all patients the conservative myomectomy by laparotomny that laparoscopic accesses out of pregnancy was made, a course of complex rehabilitational therapy in the early and late postoperative period is conducted, the next and remote results are tracked. Results. Efficiency of pregravidarny training of patients with a hysteromyoma made 67.0%, thus authentically larger frequency of offensive of pregnancy is noted in group of the patients receiving in the postoperative period therapy by agonists of GNRG (73.0%), including at women with genesial problems (52.0%). Besides, purpose of agonists of GNRG after operation allows to reduce number of recurrence of a disease in the remote period. Conclusions. The advanced technique of pregravidarny preparation allows to improve the genesial forecast of women with hysteromyoma. Key words: hysteromyoma, pregravidarny preparation, optimization.

scholarly journals Intrapleural analgesia after endoscopic thoracic sympathectomy

2011 ◽  
Vol 26 (6) ◽  
pp. 508-513 ◽  
Author(s):  
Patrícia Gomes da Silva ◽  
Daniele Cristina Cataneo ◽  
Fernanda Leite ◽  
Erica Nishida Hasimoto ◽  
Guilherme Antonio Moreira de Barros
Keyword(s):  
Postoperative Period ◽  
Inspiratory Capacity ◽  
Intense Pain ◽  
Thoracic Sympathectomy ◽  
Group A ◽  
Group B ◽  
Intrapleural Analgesia ◽  
Higher Doses ◽  
Late Postoperative Period ◽  
Different Doses

PURPOSE: To compare analgesia traditionally used for thoracic sympathectomy to intrapleural ropivacaine injection in two different doses. METHODS: Twenty-four patients were divided into three similar groups, and all of them received intravenous dipyrone. Group A received intravenous tramadol and intrapleural injection of saline solution. Group B received intrapleural injection of 0.33% ropivacaine, and Group C 0.5% ropivacaine. The following aspects were analyzed: inspiratory capacity, respiratory rate and pain. Pain was evaluated in the immediate postoperative period by means of the visual analog scale and over a one-week period. RESULTS: In Groups A and B, reduced inspiratory capacity was observed in the postoperative period. In the first postoperative 12 hours, only 12.5% of the patients in Groups B and C showed intense pain as compared to 25% in Group A. In the subsequent week, only one patient in Group A showed mild pain while the remainder reported intense pain. In Group B, half of the patients showed intense pain, and in Group C, only one presented intense pain. CONCLUSION: Intrapleural analgesia with ropivacaine resulted in less pain in the late postoperative period with better analgesic outcomes in higher doses, providing a better ventilatory pattern.

scholarly journals SOME ASPECTS OF CT ASSESSMENT OF SUPRAVESICAL URINARY TRACT IN PATIENTS AFTER CYSTILEOPLASTICS

2011 ◽  
Vol 2 (1) ◽  
pp. 54-56
Author(s):  
O P Sukhanova ◽  
T S Borondzhiyan ◽  
E V Minasyan
Keyword(s):  
Urinary Tract ◽  
Radical Cystectomy ◽  
Postoperative Period ◽  
Inflammatory Process ◽  
Underlying Disease ◽  
The State ◽  
Malignant Lesions ◽  
Degrees Of Severity ◽  
Late Postoperative Period ◽  
Ct Studies

The purpose of the research was to determine morphological and urodynamic changes of supravesical urinary tract in patients after cystileoplastics. Methods. CT studies in the late postoperative period in 19 patients after radical cystectomy, combined with vesiculoprostatectomy and cystoileoplastics and malignant lesions of the bladder were performed. Results. None of cases revealed signs of continued growth. In 57% of the cases it was evidence of lymphadenopathy in the absence of negative dynamics of the underlying disease. No dependence of the state of anastomoses of the volume formed by the reservoir and the degree of shortening of the ureter was found. In assessing the state of supravesical urinary tract 11 from 19 (57,8%) patients were registered varying degrees of severity gidroureteronephrosis, and in 4 patients, pelvic ureteric reflux. All patients with urodynamic disorders identified "new bladder" had less volume than patients who did not have these disorders. Conclusion. CT study is the method of choice in the evaluation of supravesical urinary tract after cystoileoplastics for timely prevention of complications of an inflammatory process. It was revealed that the degree of changes in the urinary tract depending of the volume of the reservoir formed, requires further analysis.

Pannus formation in aortic valve prostheses in the late postoperative period

2003 ◽  
Vol 6 (3) ◽  
pp. 179-182 ◽  
Author(s):  
Yukio Kuniyoshi ◽  
Kageharu Koja ◽  
Kazufumi Miyagi ◽  
Mituyoshi Shimoji ◽  
Tooru Uezu ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Postoperative Period ◽  
Pannus Formation ◽  
Valve Prostheses ◽  
Late Postoperative Period

scholarly journals Investigation of Crystalline and Tensile Properties of Carbon Nanotube-Filled Polyamide-12 Fibers Melt-Spun by Industry-Related Processes

2012 ◽  
Vol 7 (3) ◽  
pp. 155892501200700 ◽  
Author(s):  
Sanjukta Chatterjee ◽  
Felix A. Reifler ◽  
Bryan T. Chu ◽  
Rudolf Hufenus
Keyword(s):  
Mechanical Properties ◽  
Melt Spinning ◽  
Polymer Fibers ◽  
High Tensile Strength ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Polyamide 12 ◽  
Industrial Standards ◽  
Crystalline Domains

This paper addresses the influence of carbon nanotubes (CNT) on the structure and mechanical properties of high tensile strength thermoplastic polymer fibers. Polyamide (PA) fibers with different draw ratios, with and without CNTs as fillers, and having mechanical properties close to industrial standards were spun in a pilot melt spinning plant. The morphology of the fibers was investigated using optical microscopy, nuclear magnetic resonance (NMR) and 2-D wide angle x-ray diffraction (WAXD). Differential scanning calorimetry (DSC) was carried out to get an estimate of the crystallinity. For a concise interpretation of the results of the tensile measurements performed on the fibers, a parameter was developed to account for the detrimental influence of polymer extrusion on their mechanical properties. The CNTs seemed to act as sites for the growth of un-oriented crystalline domains converted from oriented regions, without yielding a mechanical reinforcing effect.

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