Efficacy of topical Linum usitatissimum L. (flaxseed) oil in knee osteoarthritis: A double-blind, randomized, placebo-controlled clinical trial

- Knee osteoarthritis is the commonest form of arthritis among the elderly.
- Flaxseed oil is traditionally used for treatment of joints pain in Persian Medicine.
- Flaxseed oil is effective in pain relief of patients with knee osteoarthritis, especially in improving the severity of symptoms and functional status of patients.