High rate of failure of impaction grafting in large acetabular defects

2008 ◽  
Vol 2008 ◽  
pp. 98-99
Author(s):  
B.F. Morrey
2007 ◽  
Vol 89-B (3) ◽  
pp. 296-300 ◽  
Author(s):  
E. H. van Haaren ◽  
I. C. Heyligers ◽  
F. G. M. Alexander ◽  
P. I. J. M. Wuisman

2013 ◽  
Vol 9 (3) ◽  
pp. 242-246 ◽  
Author(s):  
Johannes Buckup ◽  
Emiliano Alvarez Salinas ◽  
Alejandro Gonzalez Della Valle ◽  
Friedrich Boettner

Author(s):  
Wubetu Barud Demilie

Computer programming courses are among the important components of the curriculum to be studied, not only in the school of Computing and Informatics, but also in most of the field including Natural Sciences, Mathematics, and Engineering Science departments. In this research, a study was conducted to investigate and explore the views of students for the failure and difficulties they faced in learning fundamental programming courses. There are many factors that influence the high rate of failure of students in computer programming courses. This paper focuses on the teaching and learning methodologies and strategies that are implemented in teaching of programming courses. This is a major factor for consideration; hence an investigation into the causes of failure of students in computer programming courses from the learner perspective with regard to the teaching methodology used by teachers to teach these courses is relevant and very important concept. Computer programming courses form part of the core concentration areas for students especially studying in school of computing and informatics as an undergraduate degree program. Computer programming students are expected to prove capabilities in the principles of programming and logic that are being taught in the course; even though some of these concepts are highly intellectual and multifaceted. Their opinions to the usefulness of the teaching methods being implemented in computer programming courses were required for. The needs and concerns about the teaching and learning methods are highlighted in the survey and discussed thereby leading to the making of suggestions about the ways to improve the teaching and learning methods that are used in computer programming courses in order to advance understanding of computer programming, when studied by students thereby minimizing failure rates of those students.


Author(s):  
Chung Kim ◽  
Dane Peterson ◽  
Jerry Chin ◽  
Tonya Barrier

Despite enormous progress in the methodologies and technologies used in the development and implementation of Information Systems (IS), IS failure continues to plague the efforts of many companies. According to a recent report, up to 90 percent of all IS projects fail to achieve their goals, 80 percent are late and over-budget, and 40 percent are abandoned (Clegg et al., 1997). Since information systems are becoming increasing critical for the strategic operations of organizations, the high rate of failure for IS projects is of great concern to both organizational management and IS professionals. Developing and implementing successful international IS have proven to be even more difficult due to such factors as the diversity and disagreement among the participants (Mantelaers & Van Den Berg, 2000). However, with an increasing number of firms expanding into international markets, the need to develop and implement IS which cross national boundaries and span diverse cultures is rapidly growing (Palvia, 1998). Adding to the importance of developing successful international IS is the realization that they constitute an essential tool for assisting organizations in coping with the increased competition associated with global markets. Thus, there is an urgent need to acquire knowledge about whether the factors found to be critical for developing successful IS in one country are also applicable to developing international IS involving countries with different cultural norms.


2010 ◽  
Vol 17 (2) ◽  
pp. 94-99 ◽  
Author(s):  
Marie Helleberg ◽  
Sören Thybo
Keyword(s):  

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 833-833 ◽  
Author(s):  
Jorge Romaguera ◽  
Luis Fayad ◽  
Alma Rodriguez ◽  
Fb Hagemeister ◽  
Barbara Pro ◽  
...  

Abstract MCL has a poor outcome with current non-intense therapies. We present an update of our results utilizing an intense chemotherapy regimen comprising fractionated cyclophosphamide, doxorubicin, vincristine and dexamethasone to which rituximab has been added (R-HyperCVAD, one cycle), alternating with rituximab and high dose methotrexate/cytarabine (R-MA, one cycle) for a total of 6–8 cycles (J Clin Oncol 2006 Feb 1;24(4):724). Treatment was started at most within 2 months from the initial evaluation. Overall survival (OS) was defined as the time from start of treatment until recurrence or death from any cause. Failure-free survival (FFS) was defined as the time from start of treatment until recurrence or death from toxicity or death from treatment-related malignancy. Of 97 consecutive evaluable patients, 87% achieved a complete response (CR) or unconfirmed CR after 6 cycles and did not receive additional therapy. With a median follow up on 84 months (7 years), the overall survival and failure-free survival at 7 years was 60% and 43%, respectively. Among patients 65 years of age or younger, the 7-year OS and FFS was 68% and 52%, respectively. Important prognostic variables included age (65 yrs or less vs > 65 yrs; initial serum B2 microglobulin 3 or less mg/dL vs > 3); and initial serum lactate dehydrogenase (normal vs > normal). Further subset analysis will be presented at the meeting. Figure Figure


2017 ◽  
Vol 32 (5) ◽  
pp. 1679-1683 ◽  
Author(s):  
Kevin C. Ilo ◽  
Emma J. Derby ◽  
Robert K. Whittaker ◽  
Gordon W. Blunn ◽  
John A. Skinner ◽  
...  

2019 ◽  
Vol 25 (3) ◽  
pp. 37-46 ◽  
Author(s):  
A. N. Kovalenko ◽  
A. A. Dzhavadov ◽  
I. I. Shubnyakov ◽  
S. S. Bilyk ◽  
A. O. Denisov ◽  
...  

Introduction. The matter of the replacement of acetabular defects is becoming increasingly relevant today. In their clinic the authors used custom-made implants with trabecular coating for replacement of defects in the acetabulum where and when it was necessary to ensure extended fixation of the component. Purpose — to evaluate short-term clinical and functional outcomes, osteointegration of porous coated custom-made implants, the overall survival of structural components and to identify the causes of failures and complications. Materials and Methods. During the study the authors interviewed and evaluated radiographs of 48 patients operated from October 2015 to June 2018. The patients were interviewed before and after the surgery using the Oxford hip joint scale, quality of life EQ-5D and visual analogue pain scale. Radiographs were evaluated for a period of at least 12 months for the signs of osteointegration. Results. The average OHS scores increased from 14.9 (±7) to 37.6 (±7) (p<0.01). Quality of life according to the EQ-5D index increased from 0.2 (±0.2) to 0.7 (±0.2) (p<0.01). The average value by general health scales: before operations — 49 (±17) and 73 (±18) scores after surgeries (p<0.01). The average VAS pain score decreased from 73 (±10) to 19 (±19) points (p<0.01). Osteointegration was observed in 98 percent of cases. Migration of the implant with fracture of a flange was observed in one case. Conclusions. In the short-term follow up the use of custom-made implants significantly improves hip joint function and the patients’ life quality. Custom-made implants enable primary reliable fixation in case of complex acetabular defects. High rate of osteointegration is observed for custom-made implants with porous coating within at least 12 months. Longer follow-up is needed to evaluate long-term results.


2011 ◽  
Vol 1 (1) ◽  
pp. 9
Author(s):  
Alfred V. Robinson, Jr.

Entrepreneurs should be aware of the currently high rate of failure for small business firms and the consequent need for well-formulated and strategic planning, implementation and evaluation of the smaller business firm. Many of these basic forms of analysis can be derived from financial statement and reporting disclosures for the smaller business firm. These tools for management planning and decision-making are increasingly available with the use of electronic data processing (EDP) systems in the creation of financial data for a business organization.Recognizing the need for systematic use and evaluation of these financial data by small business owners, this study focused upon the use of a set of widely discussed financial ratios by a sample group of small business owners in the Chicago metropolitan area.


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