https://www.selleckchem.com/products/ldn193189.html t visit within 90 days. III, retrospective matched cohort. III, retrospective matched cohort. To assess statewide prevalence of medical access, concussion reporting, and concussion clearance rates of high school athletic departments in Massachusetts after the implementation of state-wide concussion legislation. A random sample of 50 athletic directors (ADs) from Massachusetts high schools with an enrollment of >150 students was selected. A 10-minute electronic survey about access to athletic trainers and physicians, and concussion reporting and clearance practices was administered. Responses were anonymous. The response rate was 80% (n= 40). In total, 90% of respondents were male. Median age and experience of respondents was 52 years old and 10 years, respectively. The median school size was 637 students, represented from all Massachusetts geographic athletic districts. ADs disclosed that on average, 12% (95% confidence interval 7%-20%) of concussions go unreported at their schools. In total, 16% of respondents reported that at least 1 in 4 of concussed athletes at their school returned to pl safer in situations where a concussion may have occurred. To evaluate clinical and biomechanical outcomes after knee extensor mechanism reconstruction (KEMR). Patients who underwent KEMR at our institution from 2011 to 2018 were identified. Patient-reported outcomes (Kujala, Lysholm, Tegner Activity Scale) were compiled at clinical follow-up. Isokinetic testing was conducted using the BioDex system 4 pro dynamometer at slow (60°/s), intermediate (180°/s), and fast (300°/s) speeds in a 9-patient subset. From 2011 to 2018, 12 patients (12 knees, 10 male, 5 right, mean age 54.3 ± standard deviation 15.2 years) with KEM injuries requiring tendon reconstruction with a 1-year minimum follow up were identified. Postoperative follow-up was 42.6 months (range 12.0-93.0 months). Procedures included patellar (7) and quadriceps tendon rec