Osteoarthritis

The grounding supports a multifactorial aetiology rather than a single cause. Osteoarthritis is associated with biochemical changes and biomechanical stress on articular cartilage, and review abstracts also describe chronic overuse or injury as common initiating factors.

The disease involves low-grade inflammation and an imbalance between catabolic and anabolic processes across the whole joint. Cytokine networks, including proinflammatory and anti-inflammatory mediators, regulate signaling pathways that drive matrix-degrading enzymes such as matrix metalloproteinases, leading to cartilage matrix breakdown and progressive tissue dysfunction. Innate and adaptive immune mechanisms, complement, and cellular senescence are also implicated in the literature as part of the joint-level degenerative process.

Older age is a major associated factor in the MeSH definition. The supplied reviews also identify chronic overuse and joint injury as risk factors or common antecedents, and the literature emphasizes biomechanical stress as a contributor.

The grounding supports therapy at the level of broad modalities rather than specific regimens. Literature in the supplied set discusses drug therapy and adjunctive regenerative approaches such as platelet-rich plasma, alongside therapeutic targeting of inflammatory and signaling pathways; however, it does not provide enough detail to define a complete standard treatment pathway.