Osteoarthritis and inflammation: a serious disease with overlapping phenotypic patterns

Area of Science:

• Rheumatology
• Orthopedics
• Geriatrics

Background:

• Osteoarthritis (OA) is the most common arthritic condition in individuals over 60, significantly impacting disability and healthcare costs.
• Pain is a primary symptom and leading cause of disability in OA patients.
• OA is now recognized as a complex disease affecting the entire joint, not just cartilage, with evolving understanding of its pathophysiology.

Purpose of the Study:

• To review the current understanding of osteoarthritis (OA).
• To focus on three key OA phenotypes: post-trauma, metabolic, and aging.
• To highlight the importance of understanding OA phenotypes for improved treatment.

Main Methods:

• Literature review of osteoarthritis (OA) pathophysiology and phenotypes.
• Analysis of OA's impact on disability, comorbidity, and mortality.
• Synthesis of current research on OA disease mechanisms and patient stratification.

Main Results:

• OA is increasingly recognized as a serious disease due to its significant impact.
• The pathophysiology of OA involves multiple joint tissues and can be described by overlapping phenotypes.
• Key phenotypes include post-trauma, metabolic, and aging-related OA.

Conclusions:

• A deeper understanding of OA phenotypes, especially early in the disease, is crucial for enhancing treatment efficacy.
• Future treatments for OA may be personalized based on a patient's specific phenotype and disease pathway.
• Tailoring non-pharmacological and pharmacological interventions to individual OA phenotypes holds promise for better patient outcomes.