Rhythmanalysing the urban runner: Pildammsparken, Malmö

In this article we discuss the development of urbanized running culture by exploring how the embodied rhythms of running interact with other urban rhythms in a park. The analysis focuses on the timings, sensations and materialities produced through running, and how the rhythms of running intersect with the materialities and rhythms of others. The investigation draws on interviews, observations and a running diary undertaken at Pildammsparken in central Malmö. Our research shows that while the runner, in endeavouring to align with the rhythms of others, may becoming a more disciplined figure, running in the park is more concerned with practising a sharing of space than moving on auto-pilot. Consequently, running is largely a mobile rhythmic practice that negotiates and adapts to co-produce eurhythmic choreographies in this particular urban location

Notes on the use and interpretation of radiostereometric analysis

ABSTRACT With increasing numbers of research groups carrying out radiostereometric analysis (RSA), it is important to reach a consensus on how the main aspects of the technique should be carried out and how the results should be presented in an appropriate and consistent way

Territorialising brand experience and consumption: negotiating a role for pop-up retailing

The evolving consumption landscape creates challenges for retailers in accommodating their modus operandi to negotiate changing consumer needs, arguably requiring a ‘new’ type of retailing to hopefully facilitate future success. We suggest that an important aspect of such negotiation will be the use of ‘pop-up’ activity, and we critically evaluate the potential of these ephemeral consumption spaces to constitute and shape consumers’ brand-oriented relations and experiences into the future. Informed by the work of Deleuze and Guattari, we take a territorological perspective. Drawing on data from eight UK-based pop-up cases, we analyse: (1) how these temporary ‘territories’ of brand experience are developed and implemented; (2) what differentiates them from other, traditionally conceived, territories of brand experience; and (3) critically evaluate pop-up’s neglected characterisation in terms of a more ‘fluid’ spatial-temporal retail territory, to better understand its role in contemporary consumer culture. We posit that the development of pop-up activities occurs through the coordination of actions of a variety of stakeholders, constituting a spatial-temporal confluence of both material and processual elements to create a ‘refrain’, through the compression and compaction of interior, intermediary, exterior and annexed milieus. In doing so, we offer a new lens through which to view the creation of retail consumption spaces

18 years of results with cemented primary hip prostheses in the Norwegian Arthroplasty Register: Concerns about some newer implants

Background and purpose Few studies have compared the long-term survival of cemented primary total hip arthroplasties (THAs), and several prostheses have been used without adequate knowledge of their endurance. We studied long-term outcome based on data in the Norwegian Arthroplasty Register

A randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 years

Background and purpose: We performed a randomized study to determine the migration patterns of the Spectron EF femoral stem and to compare them with those of the Charnley stem, which is regarded by many as the gold standard for comparison of implants due to its extensive documentation. Patients and methods: 150 patients with a mean age of 70 years were randomized, single-blinded, to receive either a cemented Charnley flanged 40 monoblock, stainless steel, vaquasheen surface femoral stem with a 22.2-mm head (n = 30) or a cemented Spectron EF modular, matte, straight, collared, cobalt-chrome femoral stem with a 28-mm femoral head and a roughened proximal third of the stem (n = 120). The patients were followed with repeated radiostereometric analysis for 2 years to assess migration. Results: At 2 years, stem retroversion was 2.3° and 0.7° (p < 0.001) and posterior translation was 0.44 mm and 0.17 mm (p = 0.002) for the Charnley group (n = 26) and the Spectron EF group (n = 74), respectively. Subsidence was 0.26 mm for the Charnley and 0.20 mm for the Spectron EF (p = 0.5). Interpretation: The Spectron EF femoral stem was more stable than the Charnley flanged 40 stem in our study when evaluated at 2 years. In a report from the Norwegian arthroplasty register, the Spectron EF stem had a higher revision rate due to aseptic loosening beyond 5 years than the Charnley. Initial stability is not invariably related to good long-term results. Our results emphasize the importance of prospective long-term follow-up of prosthetic implants in clinical trials and national registries and a stepwise introduction of implants

Die Biegestabprothese: ein experimenteller Ansatz zur metaphysären Hüftendoprothetik

The aim of our study was to develop a femoral component for total hip arthroplasty that would exclusively anchor in the metaphysis of the femoral neck. To forego trochanteric fixation, the load needs to be transferred to the metaphysis at as many points as possible. A computer simulation model suggested that an implant with a central cylinder and 16 rods aligned along a thread would be the preferable solution. To evaluate primary implantation stability, 14 fresh frozen cadaver femora were used. A special instrument set was developed to allow for centered implantation of the prosthesis without the need to dissect the greater trochanter. For our tests, we used two prototype implants: one made from titanium and the other from a CoCrMo alloy. For the measurement of micromotions at the medial proximal femur, sinusoid dynamic loading with a force between 300 N and 1700 N and a frequency of 1 Hz was employed. In a neutral position of 16 degrees adduction and 9 degrees ante-torsion, the average micronnotions measured were 119 mu m. Despite these convincing in vitro results with regards to primary stability, circular cut-out of the implant, followed by aseptic osteonecrosis, loosening might still occur in a clinical situation. Animal experiments are therefore required to further evaluate this new implant design