Do NSAIDs affect the progression of osteoarthritis?

Area of Science:

• Biomedical Science
• Pharmacology
• Orthopedics

Background:

• Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly prescribed for osteoarthritis (OA) symptom relief.
• The impact of NSAIDs on OA progression remains a subject of debate and conflicting research findings.

Purpose of the Study:

• To critically evaluate the current understanding of NSAID effects on cartilage in OA.
• To highlight the need for validated non-invasive methods to assess NSAID-induced changes in OA cartilage.

Main Methods:

• Review of in vitro studies examining NSAID effects on cartilage matrix synthesis and chondrocyte apoptosis.
• Analysis of animal model studies investigating NSAID actions on articular cartilage.
• Examination of preliminary clinical trial data on NSAID influence on joint structure and radiographic damage.

Main Results:

• In vitro studies demonstrate varied NSAID effects, with some inhibiting and others promoting cartilage matrix synthesis and chondrocyte survival.
• Animal models show conflicting results, with the same NSAIDs exhibiting both beneficial and detrimental effects on articular cartilage.
• Clinical data suggest some NSAIDs may negatively impact joint structure, while others show no acceleration of radiographic OA damage within two years.

Conclusions:

• Existing data do not provide convincing evidence that widely used NSAIDs or selective COX-2 inhibitors favorably impact cartilage in OA.
• There is a clear need for further investigation using reliable non-invasive techniques, such as MRI, to elucidate NSAID effects on cartilage in OA patients.