The design of an uncemented hip arthroplasty implant affects its long-term survival. Characteristics such as the form and the finish of the implant are crucial in order to achieve the best possible conditions for long-term implant survival. In this thesis we hypothesized that different shapes of stems and cups used in primary and revision total hip arthroplasty (THA), and their finish with hydroxyapatite (HA) coating affect implant stability and thus long-term survival. In 2 prospective cohort studies the clinical outcome, the stability measured with radiostereometric analysis (RSA), and the periprosthetic changes in bone mineral density (BMD) measured with dual-energy x-ray absorptiometry (DXA) were investigated in 2 uncemented THA implants – the CFP stem and the TOP cup. In 3 register studies the effect of HA coating on uncemented THA implants used in primary and revision arthroplasty was investigated. Both implants investigated in the prospective cohort studies showed an excellent short-term clinical outcome with good primary stability, but neither their novel form nor the finish with HA protected the implants from the proximal periprosthetic demineralization that usually occurs around other uncemented THA implants. The register studies revealed that HA coating on cups used in primary and revision THA is a risk factor for subsequent revision of the implant. The use of HA coating on the stem in primary THA did not affect long-term survival. Additionally, the shape of an implant plays a crucial role for implant stability and survival. In conclusion, this thesis highlights that the finish of implants with HA coating does not prevent periprosthetic proximal femoral bone loss and can even enhance the risk of revision of both primary and secondary cups. Importantly, the shape of uncemented THA implants affect their stability, showing that the implant form is a crucial factor for the long-term survival.

The initial recommendation for the postoperative regime after uncemented total hip arthroplasty (THA) was 6-12 weeks of partial weight bearing (PWB) to obtain a stable implant position during bone ingrowth. In recent years patients with uncemented THA have increasingly practiced full weight bearing (FWB) after surgery, which has largely been based on clinical experience rather than on scientific evidence. The aim of this thesis was to investigate the effects of FWB versus PWB for 3 months on the stability of the implants and on bone mineral density (BMD), as well as body composition (BC) of the lower extremities. We used radiostereometric analysis (RSA) to measure implant micromotion and dual X-ray absorptiometry (DXA) to measure BMD and BC. Forty-six patients with strictly unilateral osteoarthritis of the hip (OAH) received uncemented THA. These patients were then randomized to the FWB or PWB groups and followed for 5 years. In a preoperative cross-sectional study the BMD of the hip and heel were compared between the OAH-affected side and the healthy side. The study showed an increase of BMD at the femoral neck and a decrease at the total hip and trochanter. The results of a RSA study of cup stability showed that there might be minimal movement in medial and proximal directions during the first postoperative week. These results indicate that the RSA baseline investigation of uncemented cups should be performed as early as possible after the first postoperative day. FWB had no adverse effects on the stability of the uncemented press-fit cups or the uncemented cementless Spotorno (CLS) femoral stems after a 5-year follow-up. There was no difference in periprosthetic BMD around the CLS stem regardless of the postoperative weight bearing regime. All zones around the femoral stem indicated a recovery in BMD toward baselines, except the calcar region, which showed progressive loss in BMD to -22% at 5 years post-surgery. FWB had no effect on the changes in BC after surgery. In conclusion, FWB is safe in uncemented THA in terms of stability, BMD and BC. Furthermore, THA apparently counteracts age-related changes in BC but not in BMD.

This thesis interrogates gangsta hip-hop for the unique attention it plays to the drug trade. I read theories of hypervisibility/invisibility and Louis Althusser’s theory of interpellation alongside hip-hop feminist theory to examine the Black female criminal subjectivity that operates within hip-hop. Using methods of discourse analysis, I question the constructions of gangster femininity in rap lyrics as well as the absences of girlhood on Season 4 of HBO’s television drama The Wire. In doing so, I argue that the discursive construction of Black female subjectivity within gangsta hip-hop provides a hypervisibility that portrays Black women as violent while simultaneously erasing the broader social processes that impact the lives of Black women and girls. Hip-hop feminism allows the cultural formations of hip-hop to be read against the politics that structure the lives of women of color in order to provide a lens for analyzing how their criminality is constructed through media.

Diss. (sammanfattning) Stockholm : Karolinska institutet, 2010.

Thesis (M.S.)--West Virginia University, 2001. / Title from document title page. Document formatted into pages; contains ix, 80 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 75-80).

Between 1985 and 1997 a hip hop culture emerged in Halifax, Nova Scotia through rap music artists' live performances at various venues, and by releasing original music on commercial and non-commercial cassette tapes and compact discs. This thesis examines the evolution of this grassroots musical culture through the lenses of Halifax's geography, innovative musical and technological trends, ever-present racial politics, and a strong "do-it-yourself" ethic. This thesis argues that hip hop in Halifax during these years can be divided into two eras distinguished by dynamic racial and stylistic changes. While the 1980s saw a predominantly Black hip hop community take root around Uniacke Square and Gottingen Street, the 1990s saw a geographic and demographic shift as the rap music scene expanded and competed with the mainstream music scene of the city. In doing so, the integrated downtown hip hop community produced a significant amount of work, overcoming institutional opposition

Osteoporosis is a common condition characterized by bone fragility and fractures. Hip fracture, leads to disability, morbidity, excess mortality and growing costs to health care systems. / Antiresorptive agents are used to treat osteoporosis and fractures; it is unknown if these agents are effective in preventing recurrent fractures in individuals who have sustained a hip fracture. / Using health services administrative databases, we ascertained the incidence of hip fractures and associated-mortality rates in the elderly population in Quebec, from 1996 to 2002 and, evaluated the effectiveness of antiresorptive agents for the prevention of recurrent hip fractures. / We identified 33,243 hip fractures. Age-adjusted annual rates of hip fractures decreased in women by 11% from 1996 to 2002 while they did not change in men. Overall one-year mortality rates were higher in men than in women (37% versus 24%), and remained stable over time. Patients exposed to antiresorptives had a 26% reduction in the rate of recurrent fractures (95% CI, 0.64--0.86) compared to patients who were not exposed to these agents. / Hip fractures remain a prevalent disease with serious complications. Further research is essential to confirm our results and, to clarify the association between increasing use of antiresorptive agents and the trend reversal in the incidence of hip fractures.

Tyrimo aktualumas. Klubo sąnario endoprotezavimo operacija – tai viena iš labiausiai kliniškai sėkmingų ir veiksmingų duodanti ilgalaikius rezultatus siekiant sumažinti skausmą, pagerinti funkciją ir gyvenimo kokybę pacientams sergantiems klubo sąnario ligomis (Ferrata et al., 2011). Tyrimo objektas: kineziterapijos efektyvumas šlaunies sąnarių amplitudei, šlaunies raumenų jėgai, skausmui ir funkciniam mobilumui, pacientams po klubo sąnario endoprotezavimo. Tyrimo tikslas - įvertinti kineziterapijos poveikį klubo sąnario judesių amplitudei, šlaunies raumenų jėgai, skausmui ir savarankiškumui po klubo sąnario endoprotezavimo. Tyrimo uždaviniai: 1) įvertinti endoprotezuotos kojos šlaunies judesių amplitudės kitimą taikant kineziterapiją; 2) įvertinti endoprotezuotos kojos šlaunies raumenų jėgos kitimą taikant kineziterapiją; 3) įvertinti endoprotezuotos kojos skausmo kitimą taikant kineziterapiją; 4) įvertinti funkcinio mobilumo kitimą taikant kineziterapiją. Hipotezė: kinezitrepijos taikymas bus efektyvesnis pacientams, kuriems endoprotezavimo operacija atlikta dėl šlaunikaulio kaklelio lūžio, nei pacientams, kuriems operacija atlikta dėl koksartrozės. Išvados: 1. Po kineziterapijos procedūrų, endoprotezuotos kojos šlaunies lenkimo amplitudė statistiškai reikšmingai daugiau padidėjo pacientams, kuriems operacija buvo atlikta dėl koksartrozės. 2. Po kineziterapijos procedūrų, endoprotezuotos kojos šlaunies lekiamųjų raumenų jėga statsitiškai reikšmingai daugiau... [toliau žr. visą tekstą] / Importance of the study: Hip joint replacement – one of the most common and clinically successful procedures, which provides longterm results, in order to reduce pain, increase life quality in patients with hip joint diseases (Ferrata et al., 2011). Object of study: physiotherapy effectiveness on hip range of motion, hip muscle strength, pain and functional mobility in patients after hip replacement. Goal of the study: to assess physiotherapy influence to hip joint range of motion, hip muscle strength, pain and functional mobility after hip joint replacement. Aims of the study: 1) To assess hip range of motion after hip replacement applying physiotherapy; 2) To assess hip muscle strength after hip replacement applying physiotherapy; 3) To assess hip pain changes after hip replacement applying physiotherapy; 4) To assess functional mobility changes after hip replacement applying physiotherapy Hypothesis: physiotherapy will be more affective on patients who have had hip replacement after hip column fracture than for patients who have had hip replacement because of coxarthrosis. Conclusions: 1. After physiotherapy on patients who have had hip replacement, hip range of motion statistically significant improved on patients who have had surgery after coxarthrosis. 2. After physiotherapy on patients who have had hip replacement, hip muscle strength statistically significant improved on patients who have had surgery after hip column fracture. 3. After physiotherapy on... [to full text]

Bibliography: leaves 198-219. / xii, 219 leaves : ill. (chiefly col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Examines the effect of implant design on the femoral bone remodelling response in a sheep cemented hip arthroplasty model. The clinical section of the thesis also indicates the importance of biological factors in the femoral bone remodelling response. / Thesis (Ph.D.)--University of Adelaide, Dept. of Orthopaedics and Trauma, 1998

Tez (Tıpta Uzmanlık) - Süleyman Demirel Üniversitesi, Tıp Fakültesi, Ortopedi ve Travmatoloji Anabilim Dalı, 2004. / Bibliyografya var.