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Search Results: 1 - 10 of 354504 matches for " R. E. Enemudo "
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An Update on Traumatic Joint Dislocations in Nigeria  [PDF]
E. O. Edomwonyi, R. E. T. Enemudo
Open Journal of Orthopedics (OJO) , 2015, DOI: 10.4236/ojo.2015.57029
Abstract: Trauma has assumed a pre-eminent epidemic proportion in the hierarchy of diseases afflicting the growing populace in Nigeria. Research into traumatic dislocations is relatively small. Road traffic accident is the commonest cause of traumatic dislocation in Nigeria currently. Human factors and collapse of road infrastructures are the major reasons. Young, productive, adult males are still the most affected while the rarity among children is again highlighted. Careful and detailed evaluation of patients is advised as certain conditions can mask the presence of a dislocation. Lack of diagnostic and therapeutic facilities in most centres in Nigeria makes this difficult, with clinicians resorting to clinical evaluation only and probably supported by only plain X-rays in some cases. Most cases are amenable to closed surgical management. Identification of long term complications is a major challenge, because of the poor follow up culture of our patients. Good road design and maintenance, enforcement of road regulations, manpower development and improvements in diagnostic and therapeutic facilities in all centres will reduce the burden of traumatic dislocations on the populace.
Pattern of Mortalities among Orthopaedic and Trauma Admissions in Irrua  [PDF]
E. O. Edomwonyi, R. E. Enemudo, I. A. Okafor
Open Journal of Orthopedics (OJO) , 2015, DOI: 10.4236/ojo.2015.57024
Abstract: Background: There are many reports from different parts of the world addressing different aspects of surgical mortality. However, none has been done in this centre as it relates to orthopaedics and trauma admissions. Such data are invaluable to health planning and epidemiological monitoring. Objective: To retrospectively review all mortalities arising from orthopaedics and trauma admission as they present to Irrua specialist Teaching Hospital (ISTH) Irrua from Jan 2005-Dec 2014. Method: Medical records of case mortalities among orthopaedic and trauma admissions over ten years (Jan 2005-Dec 2014) were retrospectively reviewed. Results: Over this period, 2129 admissions and 45 deaths were recorded, with an overall crude mortality rate of 2.11%. No death was recorded among the paediatric age group. Thirty-four patients (75.56%) died from trauma (fracture) related diagnosis, majority of which were from head injury followed by infection 5 (11.11%), tumours 4, (8.89%) and disc herniation 2 (4.44%). Males were more affected 77.78% and median age at death was 44 years. Medical co-morbidities were found in 37.77% of the deceased patients. Conclusion: Patients with trauma related cases particularly head injuries, topped the list of mortalities. Young and middle aged adult males were most affected. Need for manpower development, investment in diagnostic and therapeutic facilities and preventive measures is emphasised.
Prevalence of Pin Tract Infection: The Role of Combined Silver Sulphadiazine and Chlorhexidine Dressing
A.O Ogbemudia, A Bafor, E Edomwonyi, R Enemudo
Nigerian Journal of Clinical Practice , 2010,
Abstract: Infection at the pin tract is a common complication of external fixation. This study was done to compare the rate of pin site infection following combined 1 % silver sulphadiazine and 5 % chlorhexidine dressing with 5%chlorhexidine dressing alone. This was a prospective controlled study which compared the results of pin site dressing using a combination of chlorhexidine and silver sulphadiazine cream(Study group)with dressing using chlorhexidine alone. Eligible patients had external fixation in the treatment of open fractures or orthopaedic conditions. Pintract infectionwas deemed to be present if erythema, cellulitis or purulent discharge occurred around a pin site. We did not distinguish between deep and superficial infection. The study group had one hundred and seventy pin sites while the control group had one hundred and sixty-four pin sites. Thirty-eight patients, in whom thirty-seven uniplanar external fixators and one Ilizarov ring fixator were used, made up both groups. Three patients (7.9%) had pin tract infection in the study group while nine patients (23.7%) had pin tract infection in the control group. Therewas a significantly lower prevalence of pin-tract infection amongst patientswhose external fixation pins were dressed with 1 % silver sulphadiazine and 5 % chlorhexidine than in those dressed with chlorhexidine alone (P=0.03). Therefore, we advocate the use of a combination of silver sulphadiazine and chlorhexidine for pin site dressing.
Splenic injuries in children: The challenges of non operative management in a developing country
Osifo O,Enemudo R,Ovueni M
Journal of Indian Association of Pediatric Surgeons , 2007,
Abstract: Aim: This is to report the challenges and experience gained with non operative management of splenic injuries in a developing country where sophisticated imaging facilities are either not available or exorbitantly expensive. Materials and Methods: All patients who presented with splenic injury at the University of Benin Teaching Hospital between January, 2000 and December, 2006 were assessed and those who met the criteria were recruited for non operative management. Diagnosis of splenic injury was made by combining clinical assessment and ultrasound findings. Results: A total of 24 children with a mean age 12 ± 0.04 years and male/female ratio 1.7:1 were treated during the period. Road traffic accident, accounting for 50% of the cases was the major cause of trauma followed by falls from heights. Delay in presentation was a major concern as 62.5% of them were not referred until shock supervened. None of the patients could afford CT scan but ultrasound scan was able to confirm diagnosis in all. Basing decision on clinical parameters, non operative management was successfully done in 75% while 25% were operated as they could not meet the criteria. No mortality was recorded in the non operated group while one was recorded in those operated. The average length of hospitalization was two weeks. Conclusion: Non operative management of splenic injuries can be successfully done in a developing country using clinical parameters as a guide. The 75% of patients with splenic injury treated can be improved upon by health awareness campaign/improvement in government policy that will result in early presentation.
Lagrange as a Historian of Mechanics  [PDF]
Agamenon R. E. Oliveira
Advances in Historical Studies (AHS) , 2013, DOI: 10.4236/ahs.2013.23016
Abstract: In the first and second parts of his masterpiece, Analytical Mechanics, dedicated to static and dynamics respectively, Lagrange (1736-1813) describes in detail the development of both branches of mechanics from a historical point of view. In this paper this important contribution of Lagrange (Lagrange, 1989) to the history of mechanics is presented and discussed in tribute to the bicentennial year of his death.
History of Two Fundamental Principles of Physics: Least Action and Conservation of Energy  [PDF]
Agamenon R. E. Oliveira
Advances in Historical Studies (AHS) , 2014, DOI: 10.4236/ahs.2014.32008
Abstract: One of the aims most sought after by physics along the years has been to find a principle, the simplest possible, into which all natural phenomena would fit, and which would also allow the calculation of all past occurrences and principally future occurrences. Evidently, this is far from being reached and quite probably does not even exist. Nevertheless, an approximation to this ideal is always possible and the history of physics shows that some results in this direction have been achieved. Thus, the history of the principles of least action and conservation of energy presented in this paper explains the search for this ideal.
Charles-Augustin Coulomb—The Founder of Physiology and Ergonomics  [PDF]
Agamenon R. E. Oliveira
Advances in Historical Studies (AHS) , 2016, DOI: 10.4236/ahs.2016.55017
Abstract: The memoir Sur la force des Hommes was published by Coulomb in 1778. It is an attempt to understand human work mechanically and is the first publication on physiology and ergonomics. The question introduced by Coulomb appears from a pragmatic point of view. He proposed to measure the quantity of action (mechanical work) that a man can expend in a day of work by different ways of applying force. To do this, Coulomb studied the old problem of human mechanical capacity, also studied by Theophilus Desagulliers (1683-1744) and Daniel Bernoulli (1700-1782). In this paper we examine and discuss Coulomb’s above-mentioned publication showing his pioneering approach (Coulomb, 2002).
D’Alembert: Between Newtonian Science and the Cartesian Inheritance  [PDF]
Agamenon R. E. Oliveira
Advances in Historical Studies (AHS) , 2017, DOI: 10.4236/ahs.2017.64010
Abstract: This paper is a tribute to the tercentenary of d’Alembert’s birth. It studies the way how d’Alembert (1717-1783), with his Cartesian education, assimilated and developed Newtonian science. His Cartesianism involved the conception of the intelligibility and rationality of the principles of knowledge. His discovery of Newtonian science determined the direction of his work, with the laws of dynamics and gravitational attraction, as well as the mathematical-physics approach to mechanical problems. However, d’Alembert’s work is not just a mere development of Newtonian physics, but a real conceptual reorganization of mechanics, using differential and integral calculus formulated by Newton (1642-1727) and Leibniz (1646-1716).
Russian Science Prior to the Russian Revolution  [PDF]
Agamenon R. E. Oliveira
Advances in Historical Studies (AHS) , 2018, DOI: 10.4236/ahs.2018.73008
Abstract: This paper is an attempt to present and discuss the scientific context prior to the outbreak of the Russian Revolution in 1917. Some general aspects of the scientific milieus of the eighteenth and nineteenth centuries are described, including the period of Peter the Great, the foundation of the Academy of Science, and the influence of great figures of science, both Russian and foreign. In the eighteenth century, Euler (1707-1783) and Lomonosov (1711-1765) were chosen as symbolic and representative figures, while in the nineteenth century, Lobachevski (1792-1856), Chebyshev (1821-1894), Mendeleev (1834-1907), and Pavlov (1849-1936) were looked.
Pricing a European Option in a Black-Scholes Quanto Market When Stock Price is a Semimartingale  [PDF]
E. R. Offen, E. M. Lungu
Journal of Mathematical Finance (JMF) , 2015, DOI: 10.4236/jmf.2015.53025
Abstract: We look at the price of the European call option in a quanto market defined on a filtered probability space \"\" when the exchange rate is being modeled by the process \"\" where Ht is a semimartingale. Precisely we look at an investor in a Sterling market who intends to buy a European call option in a Dollar market. The market consists of a Dollar bond, Sterling bond and and Sterling risky asset. We first of all convert the Sterling assets by using the exchange rate Et and later on derive an integro-differential equation that can be used to calculate the price on the option.
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