285 research outputs found
Long Cephalomedullary Nails Can Be a Cheap and Effective Interval Revision Prosthesis in Infected Hip Replacements That Require Proximal Femoral Replacement: A Small Case Series
No full textHip prosthetic joint infection management is complex and expensive, especially in severe bone loss. Reducing the price of interval prosthesis when performing staged revision could minimize costs without compromising outcomes. We present 2 similar techniques developed independently that use an antibiotic-coated cephalomedullary nail with a total hip arthroplasty bearing (head and cemented acetabular component) attached to it as an interval proximal femoral replacement prosthesis. Using this technique, the femoral implant cost was reduced up to 10-fold. All patients have recovered well with resolution of infection and functional recovery similar to patients undergoing proximal femoral replacement. In one case, the lag screw (femoral neck) fractured at 5 months prompting the second-stage revision. This complication should be considered when deciding the timing of second-stage revisions in these cases.Boopalan Ramasamy, Aaron Scott Hammat, Renjy Nelson, Stuart Adam Callary, Ping Keung Chan, Lucian Bogdan Solomo
On liberty and crime: Adam Smith and John Stuart Mill
No full textThe author considers some of the works produced by Adam Smith and John Stuart Mill, who from different perspectives discuss notions such as transgression, deviance and crime. It is argued that the analysis of power crime may immensely benefit from an excavation into economics, for its concern about the creation and acquisition of wealth, the legitimacy of certain conducts as opposed to others, and ultimately the circumstances in which competition and enterprise may cause human and social harm
On liberty and crime: Adam Smith and John Stuart Mill
No full textThe author considers some of the works produced by Adam Smith and John Stuart Mill, who from different perspectives discuss notions such as transgression, deviance and crime. It is argued that the analysis of power crime may immensely benefit from an excavation into economics, for its concern about the creation and acquisition of wealth, the legitimacy of certain conducts as opposed to others, and ultimately the circumstances in which competition and enterprise may cause human and social harm
John Stuart Mill’s projected science of society: 1827-1848
No full textThe purpose of the thesis is to examine John Stuart Mill’s political thought from
about 1827 to 1848 as an exercise in intellectual history. It focuses, first, on Mill’s view,
formulated by the late 1830s, that contemporary society was ‘civilized’, and second, on
his project of a science of society, which he aspired to develop in the late 1830s and
early 1840s.
By the late 1830s, Mill came to the view that his contemporary society was a
‘commercial society or civilization’, dominated by the middle, commercial class. The
first part of my thesis, constituted by Chapters 2-4, discusses the way in which Mill
formed his notion of civilization, and what he meant by the term ‘civilization’. Mill paid
attention to the implications of the rise of the middle class, and regarded such
phenomena of contemporary society as the corruption of the commercial spirit and
excessive social conformity as an inevitable consequence of the rise of the middle class.
The second part of the thesis, constituted by Chapters 5-9, examines Mill’s
projected science of society. In the late 1830s and early 1840s, Mill attempted to
develop a new science of society whose subject-matter was the nature and prospects of
commercial, civilized society. This aspiration culminated in A System of Logic,
published in 1843. In examining Mill’s projected science, I pay particular attention to
the fact that he conceived new sciences of history and of the formation of character,
both of which were indispensable in his project, although he failed to give a complete
account of these sciences. My thesis shows that the implications of his interest both in
history and in the formation of character are more significant than Mill scholars have
assumed
Redemption in the work of Francis Stuart
No full textThe idea of redemption is central to an understanding of the work
of Francis Stuart. Through an examination of its development and
expression, it is possible to demonstrate the integrity of his work and
its distinctive qualities. Such a demonstration is necessary because
Stuart's writing has been subjected to comparatively little scholarly
inquiry, although reviews of his work, especially that produced since
1949, suggest that it is impressive and important.
First, a general background to Stuart's work, a discussion of the
special problems associated with reading it, and a summary of his corpus
is provided. This indicates that the idea of redemption is important to
his earliest writing. The state of redemption is shown to be a
necessary apotheosis for Stuart's outcast heroes; it involves spiritual
suffering through which may be found a sense of reintegration and a
higher reality. This is expressed through interrelated themes such as
those of gambler, artist and ordinary man; mystic and criminal; sacred
and profane love; and spirituality and the mundane. The nature of the
redemptive experience is further elaborated by distinctive, complex
motifs, especially the hare, the ark and the woman-Christ. Their
recurrence provides an important element in the unity of Stuart's work.
Because Stuart's idea of the outcast raises important biographical
questions, an examination of the relationship between Stuart's life and
his work is made. Finally, the way in which the idea of redemption
exists in the language structures of Stuart's novels is examined, with
especial reference to his most recent work, The High Consistory. The
thesis shows that the development of the these of redemption
demonstrates the integrity of Stuart's work
Wear of Highly Cross-Linked Polyethylene in Primary Total Hip Replacement
No full textBackground: The most common causes for revision of total hip replacement (THR) are periprosthetic osteolysis and loosening, both related to wear of the acetabular component. Acetabular components utilizing highly cross-linked polyethylene (XLPE) have been shown to wear less than earlier conventional polyethylene. Reported in vivo XLPE wear rates vary due to differing radiographic measurement techniques and methods of reporting results. XLPE liners are manufactured using different amounts of cross-linking, which may influence wear, as may articulation size and patient age. Aims: The aims of this thesis were to (1) validate radiostereometric analysis (RSA) as the most accurate radiographic method to measure wear of XLPE acetabular components, (2) undertake a scoping review of RSA studies of XLPE wear, and (3) measure bedding-in and wear rate of XLPE using RSA to investigate the influence of: i) type of XLPE, ii) articulation size, and iii) patient age. Methods: The validation study used a hip phantom to compare known two-dimensional (2D) movements of the femoral head within an acetabular component to movements measured radiographically using RSA, Hip Analysis Suite (HAS), PolyWare, Ein Bild Roentgen Analyse (EBRA) and Roentgen Monographic Analysis Tool (ROMAN). The scoping review incorporated a systematic search of PubMed, Scopus and Cochrane databases to identify studies which used RSA to measure XLPE wear. Patients in six cohorts, differing in XLPE type, articulation size or patient age, underwent regular RSA examinations to calculate XLPE wear rates between one and five years. Results: RSA was significantly more accurate to measure 2D wear and had less variability in error than all other methods. Articulation size influenced accuracy of HAS and ROMAN measurements. Use of different acetabular reference segments did not influence accuracy of RSA. The scoping review identified 14 publications by other authors that in combination reported XLPE wear at 2–10 years follow-up of 10 primary THR cohorts comprising 209 hips. Mean proximal wear rate ranged from 0.00 to 0.06 mm/yr. However, differences in how wear was determined limited comparability between studies. Recommendations were made to enhance standardization of reporting wear. RSA studies undertaken as part of this thesis found that mean proximal bedding-in within the first year and the 2D and 3D wear rates between one and five years were higher in hips with a Marathon XLPE liner, which is manufactured with a lower radiation dose. Mean proximal wear rate was low for each of the six cohorts. Articulation size and age did not influence the wear rate at five years. Conclusion: The superior accuracy of RSA wear measurements allow much smaller cohorts to be used in clinical wear studies. The scoping review and RSA studies confirmed the low early wear rates of XLPE components irrespective of articulation size and patient age. One type of XLPE liner had a higher wear rate at five years compared to other XLPE liners. Longer-term wear rates and the relationship between XLPE and periprosthetic osteolysis are yet to be determined.Thesis (Ph.D.) -- University of Adelaide, Adelaide Medical School, 201
The variation in hip stability measurements between supine and standing radiographs of dysplastic hips
No full textAIMS: The aims of this study were to compare clinically relevant measurements of hip dysplasia on radiographs taken in the supine and standing position, and to compare Hip2Norm software and Picture Archiving and Communication System (PACS)-derived digital radiological measurements. METHODS: Preoperative supine and standing radiographs of 36 consecutive patients (43 hips) who underwent periacetabular osteotomy surgery were retrospectively analyzed from a single-centre, two-surgeon cohort. Anterior coverage (AC), posterior coverage (PC), lateral centre-edge angle (LCEA), acetabular inclination (AI), sharp angle (SA), pelvic tilt (PT), retroversion index (RI), femoroepiphyseal acetabular roof (FEAR) index, femoroepiphyseal horizontal angle (FEHA), leg length discrepancy (LLD), and pelvic obliquity (PO) were analyzed using both Hip2Norm software and PACS-derived measurements where applicable. RESULTS: Analysis of supine and standing radiographs resulted in significant variation for measurements of PT (p < 0.001) and AC (p = 0.005). The variation in PT correlated with the variation in AC in a limited number of patients (R2 = 0.378; p = 0.012). CONCLUSION: The significant variation in PT and AC between supine and standing radiographs suggests that it may benefit surgeons to have both radiographs when planning surgical correction of hip dysplasia. We also recommend using PACS-derived measurements of AI and SA due to the poor interobserver error on Hip2Norm.Ameya Bhanushali, Mukai Chimutengwende-Gordon, Martin Beck, Stuart Adam Callary, Kerry Costi, Donald W. Howie, Lucian Bogdan Solomo
The effect of weight compared to BMI on patient reported outcomes at long term follow up of primary total hip arthroplasty
No full textIntroduction: Obesity has been linked to the development of osteoarthritis meaning that a large portion of arthroplasty patients are overweight or obese. Whilst the short-term complications associated with obesity are well described there is a paucity of evidence on the effect of weight compared to BMI for long term functional outcomes of total hip replacements (THR). The aim of this study was to investigate the influence of BMI and weight on long-term patient reported outcome measures following primary THR. Methods: 846 patients who underwent primary THR at the Royal Adelaide Hospital between 2000 and 2009 had a pre-operative height and weight recorded. Patient reported outcome measures (PROMs) were completed at 1, 5 and greater than 10 years follow-up. Categorical comparison of PROMs was performed for patients in weight categories of 0–65 kg, 65–80 kg, 80–95 kg, 95–110 kg and >110 kg; and BMI categories as per the WHO Classifications. Results: There was no difference in absolute or change in PROMs for any weight category. BMI did not have an effect on the change in (HHS), however there was a statistically significant decrease in absolute (HHS) values at 1 and 5 years with increasing obesity. 65 patients underwent revision within the first ten years. Conclusion: The results from this study confirm for the first time that there was no impact of weight or BMI on the change in long-term PROMs of THR. There remains a need for larger registry studies to investigate the effect of weight and BMI on long-term patient outcomes and revision rate.Thomas S. Robertson, Stuart Adam Callary, Kerry Costi, Robyn Janice Clothier, Kamalesh Venugopal, Mark Rickma
Esej o aktualność teorii Stuarta Halla w kontekście badań nad blogosferą
No full textThis essay is talking about topicality of Stuart Hall theory. Author of essay is contending that the Coding/encoding theory of Stuart Hall is still useful in works on blogosphere.In essay author explained the Coding/encoding theory and notions of blogosphere. The author is arguing that that using Coding/encoding theory in works about blogosphere. The author is pointing prospective tesis up
Beauty for the Present: Mill, Arnold, Ruskin and Aesthetic Education
No full textThe present thesis examines the idea of aesthetic education of three eminent Victorians: John Stuart Mill, Matthew Arnold and John Ruskin. By focusing on the essence of what they meant with ‘the cultivation of the beautiful’ and, more importantly, the way their ideas of beauty informed their criticism of society, my study aims to contribute to our understanding of the idea of aesthetic education in the Victorian context and, further, to participate in a recent debate about the nature of beauty and aesthetic education.
Chapter One focuses on John Stuart Mill’s concept of ‘feeling’ in a series of essays. I will demonstrate how Mill’s idea of ‘aesthetic education’ was an ‘education of feelings,’ and moreover, how this idea was integrated into his literary criticism, his later critique of democratisation, his description of an ideal liberal society and even his own style of writing. Chapter Two contains a comparative study of Matthew Arnold and Friedrich Schiller. Through a rereading of Arnold, I will argue that his idea of aesthetic education is essentially Schillerian and that their resemblance consists primarily in their stress on the importance of aesthetic unity for modern life, which was becoming increasingly fragmentary and multitudinous. Chapter Three examines John Ruskin’s idea of aesthetic education and concentrates particularly on the cultivation of perception. Perception, as I shall show, was pivotal in Ruskin’s idea of aesthetic education. Just as what happened in Mill and Arnold, the emphasis on the education of seeing continued from his early writings well into his art and social criticisms. It not only differentiated him from his fellow art critics; the conviction that people should perceive with a pure heart also enabled him to link observation of artistic details with moral criticism of contemporary society and, thereby, to turn the cultivation of the beautiful into a moral-aesthetic experience
- …
