IntroductionGlobally, knee osteoarthritis (OA) is among the top 15 causes of disability. A patient with a history of macrotrauma is more than four times as likely to develop knee OA. Macrotrauma initiates a cascade of biochemical and biomechanical changes in the joint that interact and can lead to joint failure. The purpose of this critical review is to present an overview of the early pathophysiological (i.e. biomechanical and biochemical) changes that typically occur after a knee injury and the implications of these changes for early-stage OA interventions.
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