Combined Medial Patellofemoral Ligament and Medial Patellotibial Ligament Reconstruction for Recurrent Lateral Patellar Dislocation in Flexion

© 2020 Arthroscopy Association of North America Recurrent lateral patellar dislocation can be a challenging entity to manage. It results from an imbalance between the restraints to lateralization of the patella and the forces applied to the patella within the biomechanical environment of the knee. The medial patellofemoral ligament has been recognized as the most important static soft-tissue restraint. However, the medial patellotibial ligament and medial patellomeniscal ligament are important for patellar stability at higher degrees of knee flexion. Lateral patellar dislocation in flexion poses a particularly challenging clinical entity with a combination of unique characteristics that need to be addressed to achieve optimal patellar tracking and stability. In this technical note, we describe a combined medial patellofemoral ligament and medial patellotibial ligament reconstruction technique to address lateral patellar dislocation in flexion

Understanding the psychological mechanisms of return to sports readiness after anterior cruciate ligament reconstruction.

Purpose The psychological response to an Anterior Cruciate Ligament (ACL) injury is significant and can negatively impact return to sports outcomes. This study aimed to quantify the association between factors associated with return to sport using network analysis. Methods 441 participants who underwent primary ACL reconstruction. The 12-item ACL Return to Sport after Injury (ACL-RSI) scale was administered to all participants 12 months after surgery. Three network analyses were used to quantify the adjusted correlations between the 12 items of the ACL-RSI scale, and to determine the centrality indices of each item (i.e., the degree of connection with other items in the network). Further subgroup network analyses were conducted for those who had (n = 115) and had not returned (n = 326) to their pre-injury level of sport. Results The greatest adjusted correlation was between Q7 and Q9 (fear of re-injury and afraid of accidentally injuring knee) of the ACL-RSI (group 0.48 (95%CI [0.40 to 0.57])) across all three networks. The most important item in the network was Q12 (relaxed about sport) across all three networks. Individuals who did return to sport had greater Strength centrality for Q8 (confidence in knee, P = 0.014) compared to those who did not return to sport. Conclusion Fear of re-injury and being relaxed about playing sport were the two most important nodes in the network models that describe the return to sport readiness. The importance of knee confidence at influencing psychological readiness was greater in athletes who did return to sport compared to those who did not. Our findings provide candidate therapeutic targets that could inform future interventions designed to optimize return to sport rates in athletes post ACL reconstruction

Return to sport soccer after anterior cruciate ligament reconstruction: ISAKOS consensus

Many factors can affect the return to pivoting sports, after an Anterior Cruciate Ligament Reconstruction. Prehabilitation, rehabilitation, surgical and psychological aspects play an essential role in the decision to return to sports. The purpose of this study is to reach an international consensus about the best conditions for returning to sports in soccer-one of the most demanding level I pivoting sports after anterior cruciate ligament (ACL) reconstruction

Foot posture in people with medial compartment knee osteoarthritis

<p>Abstract</p> <p>Background</p> <p>Foot posture has long been considered to contribute to the development of lower limb musculoskeletal conditions as it may alter the mechanical alignment and dynamic function of the lower limb. This study compared foot posture in people with and without medial compartment knee osteoarthritis (OA) using a range of clinical foot measures. The reliability of the foot measures was also assessed.</p> <p>Methods</p> <p>The foot posture of 32 patients with clinically and radiographically-confirmed OA predominantly in the medial compartment of the knee and 28 asymptomatic age-matched healthy controls was investigated using the foot posture index (FPI), vertical navicular height and drop, and the arch index. Independent t tests and effect size (Cohen's d) were used to investigate the differences between the groups in the foot posture measurements.</p> <p>Results</p> <p>Significant differences were found between the control and the knee OA groups in relation to the FPI (1.35 ± 1.43 vs. 2.46 ± 2.18, p = 0.02; <it>d </it>= 0.61, medium effect size), navicular drop (0.02 ± 0.01 vs. 0.03 ± 0.01, p = 0.01; <it>d </it>= 1.02, large effect size) and the arch index (0.22 ± 0.04 vs. 0.26 ± 0.04, p = 0.04; <it>d </it>= 1.02, large effect size). No significant difference was found for vertical navicular height (0.24 ± 0.03 vs. 0.23 ± 0.03, p = 0.54; <it>d </it>= 0.04, negligible effect size).</p> <p>Conclusion</p> <p>People with medial compartment knee OA exhibit a more pronated foot type compared to controls. It is therefore recommended that the assessment of patients with knee OA in clinical practice should include simple foot measures, and that the potential influence of foot structure and function on the efficacy of foot orthoses in the management of medial compartment knee OA be further investigated.</p

Psycho-social factors associated with mental resilience in the Corona lockdown.

The SARS-CoV-2 pandemic is not only a threat to physical health but is also having severe impacts on mental health. Although increases in stress-related symptomatology and other adverse psycho-social outcomes, as well as their most important risk factors have been described, hardly anything is known about potential protective factors. Resilience refers to the maintenance of mental health despite adversity. To gain mechanistic insights about the relationship between described psycho-social resilience factors and resilience specifically in the current crisis, we assessed resilience factors, exposure to Corona crisis-specific and general stressors, as well as internalizing symptoms in a cross-sectional online survey conducted in 24 languages during the most intense phase of the lockdown in Europe (22 March to 19 April) in a convenience sample of N = 15,970 adults. Resilience, as an outcome, was conceptualized as good mental health despite stressor exposure and measured as the inverse residual between actual and predicted symptom total score. Preregistered hypotheses (osf.io/r6btn) were tested with multiple regression models and mediation analyses. Results confirmed our primary hypothesis that positive appraisal style (PAS) is positively associated with resilience (p < 0.0001). The resilience factor PAS also partly mediated the positive association between perceived social support and resilience, and its association with resilience was in turn partly mediated by the ability to easily recover from stress (both p < 0.0001). In comparison with other resilience factors, good stress response recovery and positive appraisal specifically of the consequences of the Corona crisis were the strongest factors. Preregistered exploratory subgroup analyses (osf.io/thka9) showed that all tested resilience factors generalize across major socio-demographic categories. This research identifies modifiable protective factors that can be targeted by public mental health efforts in this and in future pandemics

Потребительский экстремизм как правовое явление

Материалы XIII Междунар. науч. конф. студентов, магистрантов, аспирантов и молодых ученых, Гомель, 21–22 мая 2020 г

Spatial theory and human behavior

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45971/1/10110_2005_Article_BF01952731.pd

To buy or not to buy a BEV : drivers and concerning factors influencing German customers purchase intention

This thesis aims to analyse the current drivers and concerns that influence the purchase intention for electric vehicles in the German market. Based on a deductive analysis, factors were identified in the literature that are considered relevant indicators for the purchase intention of EVs internationally. These factors have not yet been analysed as drivers and concerns in this constellation in the German context, which led to the research questions about the connection with the purchase intention. In addition, demographic characteristics were considered and analysed for possible differences between the participant groups. The methods used included a sample of German residents as well as conducting semi structured interviews and an online survey to record attitudes. The statistical analysis included correlation analysis to assess the relationships between the determinants and purchase intention. The most important results show that the drivers and barriers for the purchase of EVs on the German market are in line with international findings and that there is a significant correlation between all variables and the purchase intention. Regarding demographic differences, no effects on the purchase intention can be identified. Limitations of this study include potential biases due to the sample size and the limited scope of the methods used. These findings help to deepen the understanding of purchase intention for EV and provide valuable insights for companies and research institutes to develop targeted marketing strategies. Future research could focus on validating these findings in different contexts and further investigating the impact of long-term trends on purchasing behaviour.Esta tese tem como objetivo analisar os factores e preocupações que influenciam a intenção de compra de veículos eléctricos no mercado alemão. Com base numa análise dedutiva, foram identificados na literatura factores que são considerados indicadores relevantes para a intenção de compra de veículos eléctricos a nível internacional. Estes factores não foram analisados como factores e preocupações nesta constelação no contexto alemão, o que levou a questões de investigação sobre a ligação com a intenção de compra. Para além disso, as características demográficas foram consideradas e analisadas quanto a possíveis diferenças entre os grupos de participantes. Os métodos utilizados incluíram uma amostra de residentes alemães, bem a realização de entrevistas semi-estruturadas e um inquérito em linha para registar as atitudes. A análise estatística incluiu uma análise de correlação. Os resultados importantes mostram que os factores e barreiras para a compra de veículos eléctricos no mercado alemão estão em linha com os resultados internacionais e que existe uma correlação significativa entre variáveis e a intenção de compra. Relativamente às diferenças demográficas, não se identificam efeitos na intenção de compra. As limitações deste estudo incluem potenciais enviesamentos à dimensão da amostra e ao âmbito limitado dos métodos utilizados. Estes resultados ajudam a aprofundar a compreensão da intenção de compra de VE e fornecem informações valiosas às empresas e à investigação para desenvolver estratégias de marketing direccionadas. A investigação futura poderá centrar-se na validação destes resultados em diferentes contextos e na investigação do impacto das tendências a longo prazo no comportamento de compra