What's new in osteoarthritis?

Area of Science:

• Orthopedics and Musculoskeletal Diseases
• Rheumatology
• Medical Imaging

Background:

• Osteoarthritis (OA) represents a significant and escalating global health challenge.
• Recent advancements in medical imaging have substantially improved the understanding of OA pathogenesis.
• Both systemic and local factors contribute to OA, with some modifiable factors offering therapeutic targets for precision medicine.

Purpose of the Study:

• To review the current understanding of osteoarthritis pathogenesis.
• To evaluate the efficacy of recent therapeutic strategies, particularly those targeting specific patient subgroups identified by imaging.
• To identify the unmet needs in osteoarthritis treatment.

Main Methods:

• Literature review focusing on recent advances in OA pathogenesis and imaging.
• Analysis of completed clinical trials, including those stratifying patients based on imaging features.
• Synthesis of findings from basic science, human observational studies, and interventional trials.

Main Results:

• Imaging advances have enhanced comprehension of OA's underlying mechanisms.
• Clinical trials targeting subgroups of OA patients based on imaging have yielded inconsistent outcomes.
• Many interventional studies failed to replicate promising results from preclinical and observational research, with most trials reporting negative findings.

Conclusions:

• Despite progress in understanding OA pathogenesis, current therapeutic options remain limited.
• The heterogeneity of OA necessitates further research into personalized treatment approaches.
• There is a critical and urgent requirement for the development of novel and more effective therapies for osteoarthritis management.