Topical therapies for knee osteoarthritis

Area of Science:

• Rheumatology
• Pharmacology

Background:

• Knee osteoarthritis (OA) affects millions globally, necessitating effective management strategies.
• Topical therapies are increasingly explored for symptomatic knee OA relief.

Purpose of the Study:

• To evaluate the efficacy and tolerability of topical treatments for knee OA.
• To determine the current role of topical therapies in knee OA management guidelines.

Main Methods:

• Conducted a systematic literature search of Cochrane Library and PubMed (MEDLINE).
• Focused on studies investigating topical therapies for knee osteoarthritis.

Main Results:

• Topical NSAIDs like diclofenac and ketoprofen showed some pain relief, but efficacy varied.
• Evidence for other topical agents (capsaicin, glucosamine, etc.) is limited, often with low-quality studies.
• Topical NSAIDs demonstrated potential benefits with fewer gastrointestinal complications than oral NSAIDs.

Conclusions:

• Current guidelines recommend topical NSAIDs as a first-line option for knee OA, especially in elderly patients.
• Topical NSAIDs offer an alternative to oral NSAIDs with a potentially better safety profile regarding gastrointestinal issues.
• Further research is required to establish the role and efficacy of non-NSAID topical therapies for knee OA.