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Background: The prevalence of total joint arthroplasty (TJA) in the United States has drawn the attention of health care stakeholders. The payers have also used a variety of strategies to regulate the medical necessity of these procedures. The purpose of this study was to examine the level of evidence of the coverage policies being used by commercial payers in the United States.
Methods: The references of the coverage policies of four commercial insurance companies were reviewed for type of document, level of evidence, applicability to a TJA population, and success of nonoperative treatment in patients with severe degenerative joint disease.
Results: 282 documents were reviewed. 45.8% were primary journal articles, 14.2% were level I or II, 41.2% were applicable to patients who were candidates for TJA, and 9.9% discussed the success of nonoperative treatment in patients who would be candidates for TJA.
Conclusion: Most of the references cited by commercial payers are of a lower level of scientific evidence and not applicable to patients considered to be candidates for TJA. This is relatively uniform across the reviewed payers. The dearth of high-quality literature cited by commercial payers reflects the lack of evidence and difficulty in conducting high level studies on the outcomes of nonoperative versus operative treatment for patients with severe, symptomatic osteoarthritis. Patients, surgeons, and payers would all benefit from such studies and we encourage professional societies to strive toward that end through multicenter collaboration.
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http://dx.doi.org/10.1016/j.arth.2021.03.036 | DOI Listing |
Driven by eutrophication and global warming, the occurrence and frequency of harmful cyanobacteria blooms (CyanoHABs) are increasing worldwide, posing a serious threat to human health and biodiversity. Early warning enables precautional control measures of CyanoHABs within water bodies and in water works, and it becomes operational with high frequency in situ data (HFISD) of water quality and forecasting models by machine learning (ML). However, the acceptance of early warning systems by end-users relies significantly on the interpretability and generalizability of underlying models, and their operability.
View Article and Find Full Text PDFJ Bone Joint Surg Am
September 2025
Orthopaedic Department, EpiCURA Hospital, Hainaut, Belgium.
Background: Several studies have investigated the risk of complex regional pain syndrome (CRPS) and its prevention with vitamin C. However, evidence regarding the effectiveness of vitamin C for prevention of CRPS development or recurrence after total knee arthroplasty (TKA) is lacking.
Methods: This retrospective single-center observational cohort study, which utilized propensity-score matching (PSM), was conducted from January 2017 to December 2021.
PLoS One
September 2025
Biaoxin Science & Technology (Beijing) Co., Ltd, Beijing, China.
This study examines China's national standard development from 2001 to 2023. Using machine splitting and location assignment technology, the Dagum Gini coefficient and its decomposition methods, and traditional and spatial Markov chain estimation methods, we identify the spatiotemporal disparities and dynamic transition characteristics of the contribution levels to national standard development across China's eight comprehensive economic zones. The findings provide a reference for promoting regional coordinated sustainable development and high-quality economic transformation.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Sports Medicine, Health Sciences University Gulhane Medical Faculty, Ankara, Türkiye.
Para-athletes may experience psychological challenges such as mobbing and burnout, which can impair their performance, motivation, and well-being. Despite the inclusive goals of the Paralympic Movement, recent evidence suggests that para-athletes are not immune to negative psychosocial experiences. This study aimed to examine the relationship between mobbing exposure and burnout among para-athletes and to identify demographic and psychological predictors of mobbing.
View Article and Find Full Text PDFJCI Insight
September 2025
Department of Physiology and Neurobiology, University of Connecticut, Storrs, United States of America.
Dravet syndrome (DS) is an early-onset epilepsy caused by loss of function mutations in the SCN1A gene, which encodes Nav1.1 channels that preferentially regulate activity of inhibitory neurons early in development. DS is associated with a high incidence of sudden unexpected death in epilepsy (SUDEP) by a mechanism that may involve respiratory failure.
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