283 research outputs found
The poverty of place : a comparative study of five rural counties in the Missouri Ozark
Ph. D. University of Missouri--Columbia 1999.Research on nonmetro poverty indicates that it tends to be both geographically discrete and persistent over time. Low income counties have been shown to have a negative effect on the income of bordering counties, increasing their poverty rates. These characteristics of rural poverty are evidenced throughout the U.S.A. by the existence of clusters of persistent low income counties. Although the existence of regions of poor rural counties have been noted since 1974, little county-level research has been done to further the understanding of the dynamics driving this phenomenon or to discover what types of public policies are likely to be successful at breaking up these areas of persistent poverty. The existence of a five county group in the south central Missouri Ozarks which contains four persistent low income counties clustered around a fifth county which has never been designated persistently poor creates an anomaly which invites study. This dissertation examines this cluster of counties in an attempt to discover why, contrary to what is expected, the county at the center of this group has been notably more prosperous over time than her persistently poor neighbors. When Lyson's concept of economic distance is applied to the five county region a relationship between the degree of county remoteness/isolation and low income appears to emerge. The counties with the highest remoteness value are found to have the lowest per capita income. Furthermore, the relationship between degree of remoteness/isolation and per capita income is found to be persistent over time, and indicates that the relationship between remoteness and income is ongoing. Research shows that the advantaged county developed transportation routes out of the region early in its history, reducing its isolation. The four persistent low income counties remain relatively isolated to date. Research conducted in this dissertation indicates that the relative isolation of the four counties is an important contributory factor to their persistent low income over time. The findings underscore the importance of the reduction of isolation to economic development. Further, they indicate that state investment in efficient transportation and technology routes in and out of persistent low income counties may be an important step towards breaking up clusters of persistent nonmetro poverty.Includes bibliographical references (leaves 251-271)
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Arthrogenic muscle inhibition after ACL reconstruction: a scoping review of the efficacy of interventions
Objective: To determine whether reported therapeutic interventions for arthrogenic muscle inhibition (AMI) in patients with ACL injuries, following ACL reconstruction, or in laboratory studies of AMI, are effective in improving quadriceps activation failure when compared with standard therapy in control groups.
Design: A scoping review of the efficacy of interventions was conducted in accordance with the methodological framework of Arksey and O'Malley and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Search terms included 'arthrogenic muscle inhibition', 'quadriceps activation following knee injuries', 'anterior cruciate' or 'kneeâ combined with 'quadriceps activation', 'quadriceps inhibition', 'corticomotor', 'arthrogenic', 'brain activation' and 'neuroplasticity'. Articles were evaluated for risk of bias using the PEDro (Physiotherapy Evidence Database) criteria. The overall quality of evidence for each intervention was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE).
Data sources: PubMed, EMBASE and Cumulative Index to Nursing and Allied Health Literature databases.
Eligibility criteria for selecting studies: Isolated case reports and articles reporting outcomes in patients with chronic disease or major trauma were excluded. All other original research articles were included.
Results: 780 potential articles were identified. 20 met the inclusion criteria. These studies provided a moderate quality of evidence to support the efficacy of cryotherapy and physical exercises in the management of AMI. There was low-quality evidence for efficacy of neuromuscular electrical stimulation and transcutaneous electrical nerve stimulation, and very low-quality evidence for efficacy of ultrasound and vibration.
Conclusions: This scoping review demonstrated moderate-quality evidence for the efficacy of cryotherapy and physical exercises in improving quadriceps activation failure after ACL injury and reconstruction. These therapeutic modalities are therefore recommended in the management of AMI
Anterolateral ligament reconstruction protects the repaired medial meniscus: a comparative study of 383 anterior cruciate ligament reconstructions from the SANTI study group with a minimum follow-up of 2 years
Background: The prevalence of osteoarthritis after successful meniscal repair is significantly less than that after failed meniscal repair.
Study Design: Cohort study; Level of evidence, 3.
Purpose: The aim of this study was to determine whether the addition of anterolateral ligament reconstruction (ALLR) confers a protective effect on medial meniscal repair performed at the time of anterior cruciate ligament reconstruction (ACLR).
Methods: Retrospective analysis of prospectively collected data was performed to include all patients who had undergone primary ACLR with concomitant posterior horn medial meniscal repair through a posteromedial portal between January 2013 and August 2015. ACLR autograft choice was boneâpatellar tendonâbone, hamstring tendons (or quadrupled hamstring tendons), or quadrupled semitendinosus tendon graft with or without ALLR. At the end of the study period, all patients were contacted to determine if they had undergone reoperation. A Kaplan-Meier survival curve was plotted, and a Cox proportional hazards regression model was used to perform multivariate analysis.
Results: 383 patients (mean ± SD age, 27.4 ± 9.2 years) were included with a mean follow-up of 37.4 months (range, 24-54.9 months): 194 patients underwent an isolated ACLR, and 189 underwent a combined ACLR + ALLR. At final follow-up, there was no significant difference between groups in postoperative side-to-side laxity (isolated ACLR group, 0.9 ± 0.9 mm [min to max, â1 to 3]; ACLR + ALLR group, 0.8 ± 1.0 mm [min to max, â2 to 3]; P = .2120) or Lysholm score (isolated ACLR group, 93.0 [95% CI, 91.3-94.7]; ACLR + ALLR group, 93.7 [95% CI, 92.3-95.1]; P = .556). Forty-three patients (11.2%) underwent reoperation for failure of the medial meniscal repair or a new tear. The survival rates of meniscal repair at 36 months were 91.2% (95% CI, 85.4%-94.8) in the ACLR + ALLR group and 83.8% (95% CI, 77.1%-88.7%; P = .033) in the ACLR group. The probability of failure of medial meniscal repair was >2 times lower in patients with ACLR + ALLR as compared with patients with isolated ACLR (hazard ratio, 0.443; 95% CI, 0.218-0.866). No other prognosticators of meniscal repair failure were identified.
Conclusion: Combined ACLR and ALLR is associated with a significantly lower rate of failure of medial meniscal repairs when compared with those performed at the time of isolated ACLR
Offene Latarjet-Patte-Operation nach Walch : Tipps, Tricks und Komplikationsvermeidung
Walch hat die Latarjet-Patte-Operation in offener Technik unter Anwendung eines Subskapularis-Splits in den 1980er-Jahren modifiziert, standardisiert und ĂŒber Jahrzehnte mit groĂem Erfolg bei ĂŒber 3500 Patienten angewandt. In Langzeitnachuntersuchungen wurden Rezidivraten von 1â5âŻ% bei hoher Patientenzufriedenheit im Subjective Shoulder Value (SSV >âŻ90âŻ%) dokumentiert [1, 2]. Diese Ergebnisse konnten in ZĂŒrich durch Gerber reproduziert werden [3].
Die Methode hat in mehreren Langzeitstudien den Beweis des Erreichens dauerhafter StabilitĂ€t (LangzeitstabilitĂ€t nach mehr als 6 bis 10 Jahren) bei Risikopatienten erbracht [2, 3], besonders fĂŒr Wettkampfsportler [4,5,6], junge Patienten [7, 8] und Patienten mit glenoidalem Knochenverlust [1, 9]. Bei korrekter Operationstechnik entsteht kein klinisch relevanter Beweglichkeitsverlust, und es besteht kein Zusammenhang mit der Entstehung oder Progression einer InstabilitĂ€tsarthrose [10]. In einer randomisierten kontrollierten Studie (RCT) zeigte sich eine signifikant niedrigere Reluxationsrate fĂŒr die Latarjet-Stabilisierung bei jungen MĂ€nnern unter 25 Jahren im Vergleich zur arthroskopischen Bankart-Operation [8]
Chronische posttraumatische SchulterinstabilitÀt
Chronic posttraumatic shoulder instability is characterized by trauma-associated, recurrent dislocations. Surgical treatment is indicated in most cases but it remains controversial how risk factors should be weighted to decide between arthroscopic Bankart repair (ABR), Latarjet or alternative procedures. Known risk factors for recurrence are patient age, hyperlaxity, sports profile and bone loss. Surgical techniques are discussed in detail. The ABR leads to high patient satisfaction and return to sports; however, in association with risk factors, recurrent dislocations are seen even several years later. Latarjet or bone block procedures lead to high patient satisfaction, sustainable stability as a revision procedure, but can also be primarily indicated for chronic instability depending on risk factors. Early complications are more frequent but of a minor nature in most cases. All techniques are known for a serious learning curve. If performed well, they do not seem to increase the risk of arthritis, which is most affected by the number of lifetime dislocations and higher energy trauma
Is copyright blind to the visual?
This article argues that, with respect to the copyright protection of works of visual art, the general uneasiness that has always pervaded the relationship between copyright law and concepts of creativity produces three anomalous results. One of these is that copyright lacks much in the way of a central concept of 'visual art' and, to the extent that it embraces any concept of the 'visual', it is rooted in the rhetorical discourse of the Renaissance. This means that copyright is poorly equipped to deal with modern developments in the visual arts. Secondly, the pervasive effect of rhetorical discourse appears to have made it particularly difficult for copyright law to strike a meaningful balance between protecting creativity and permitting its use in further creative works. Thirdly, just when rhetorical discourse might have been useful in identifying the significance and materiality of the unique one-off work of visual art, copyright law chooses to ignore its implications
Rethinking the social impacts of the arts
The paper presents a critical discussion of the current debate over the social impacts of the arts in the UK. It argues that the accepted understanding of the terms of the debate is rooted in a number of assumptions and beliefs that are rarely questioned. The paper goes on to present the interim findings of a threeâyear research project, which aims to rethink the social impact of the arts, with a view to determining how these impacts might be better understood. The desirability of a historical approach is articulated, and a classification of the claims made within the Western intellectual tradition for what the arts âdoâ to people is presented and discussed
Identification of capacity development indicators for faculty development programs: A nominal group technique study.
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