This study evaluates hyaluronic acid, PRP, and Arthrosamid injections for knee osteoarthritis, tracking pain, stiffness, function, and safety over time. It also examines which patients respond best, aiming to provide insight into the long-term effectiveness of these common injection therapies.

This randomized controlled trial evaluates the effects of an educational module on hockey culture, measuring changes in player attitudes and examining its potential to reduce hazing, bullying, and discrimination. Secondary analyses will explore differences by age, level of play, and coach endorsement to better understand factors influencing cultural change.