No demographic, device specific, oncologic variables have been found to be associated with increased risk of aseptic mechanical failure. While multiple radiographic parameters are used to assess for aseptic mechanical failure, no suitable method of evaluation exists. The underlying pathology associated with aseptic mechanical failure demonstrates avascular bone necrosis. This is in comparison to the bone hypertrophy and ingrowth at the boneprosthetic interface that seals the endosteal canal, preventing aseptic loosening.Pain while sitting is the most common complaint among patients with Coccydynia. In young patients this may seriously affect their schooling which usually involves long periods of sitting. We studied if this improved after either injection therapy or surgery. During a seven-year period 32 adolescents with a mean age of 15 (range 11-17) years were treated in our department because of coccydynia. They were followed up with mailed questionnaires at a minimum of 12 months after treatment and 28 (88%) responded. Three were no longer attending school and were excluded. Of the remainder, 12 received only injection therapy while 13 were operated upon. Mean follow-up time was 36 (14-66) months. Eight reported absence from school during the month before treatment, but only one during the week before review (pÃ0.01). There was significant improvement in sitting during class and physical exercise at school and when engaging in general sports (pÃ0.01). We can not exclude that improvements would have occurred spontaneously, but this seems unlikely as symptoms had persisted for more than two years before treatment. We conclude that in juveniles, an additional benefit of treating coccydynia with corticosteroid injection or operative resection is that their ability to attend school and take part in sports improves significantly.Vascular injuries following anterior shoulder dislocations are rare, with an estimated incidence of 1-2%. The formation of an axillary artery pseudoaneurysm secondary to vascular trauma is a possible late complication and frequently underdiagnosed since it may remain asymptomatic for many years. A rupture of a pseudoaneurysm may occur either from the dislocation itself or after forceful reduction attempts. A ruptured pseudoaneurysm of the axillary artery is a medical emergency and may result in significative upper-limb morbidity or even patient mortality. Nowadays, endovascular techniques have progressively gained ground for the treatment of such lesion, especially in an emergency context. In the present article, the authors present the case of a 77-years-old male patient with a rupture of a pseudoaneurysm of the left axillary artery after repeated forceful reductions of an anterior glenohumeral dislocation and its treatment with percutaneous endovascular stenting.Total hip and knee replacements (THR, TKR) are among the most common surgeries but incidence rates vary between OECD countries. Previous studies suggested economic factors to be most influential but did not take into account health care system related factors. Hence we analysed the possible influence of healthcare system related factors on the operation rate. We used OECD data for 27 countries and calculated Age-Standardized Incidence Rates (ASIR). In order to determine possible explanatory variables on the ASIRs we performed a stepwise blockwise linear regression. The ASIR of hip and knee replacement varies widely. We identified statistically significant determinants which influence the ASIR of THR in a positive manner incidence and length of stay of coxarthrosis, ASIR of knee replacement, health expenditures, number of nurses and an etatistic social insurance. Diabetes prevalence, gross domestic product and number of doctor consultations, however, have a negative influence on the ASIR. TKR rate is positively influenced by health expenditures and incidence rate of gonarthrosis, negatively by the number of primary practitioners. We observed strong geographic disparities in the frequency of THR and THR that cannot be explained by age structure of the countries. Economic factors seem to play a secondary role while healthcare related factors have a greater influence.While physicians advise patients on healthy lifestyle habits, physicians may struggle to abide by their own recommendations. We sought to characterize resident physician participation in exercise, their barriers to exercise, and the effect of exercise on their overall wellness. We hypothesized that residents who exercised would have less depression and greater wellbeing. Trainees at a university-based institution were surveyed. Data regarding exercise habits, hours worked, barriers to exercise, and mental health were acquired. Mental health was assessed via the Patient Health Questionnaire-2. Inter-group differences were analyzed using chi-squared testing; statistical significance was set at PÃ0.05. 129 trainees responded to the survey. 84 trainees reported exercising while 45 denied. 63 exercisers reported "living a healthy lifestyle" compared to 18 nonexercisers (PÃ0.001). Exercisers were more likely to report "Time" as their greatest barrier to exercise (PÃ0.001).  https://www.selleckchem.com/products/yd23.html  Fifty-five exercisers answered "Not at all" when asked about how often they experience anhedonia compared to 23 non-exercisers. Trainees who exercise are more likely to report living a healthy lifestyle and less likely to experience anhedonia than non-exercisers, demonstrating the importance of exercise during residency.Pole sport is a relatively new athletic sport that is gaining increasing popularity and for which national and international championships are held. It evolved from pole dance and harbours the risk of falls from heights of up to three metres. Currently, no studies on pole sport injuries are available. This is the first description of a small series of five pole sport injuries. A retrospective review of the case histories and radiological findings was performed, and in addition, a follow-up interview was carried out. All the patients were female and had a mean age of 27.2 years. Most injuries were located in the head, neck or spine. The use of proper training equipment like landing mats and grip aids could probably reduce accidents.