Laser Therapy for Arthritis: Non-Drug Pain Relief That Works

Arthritis affects over 350 million people globally, often leading to debilitating joint pain and stiffness. Laser therapy provides a promising non-pharmacologic treatment route, especially for osteoarthritis (OA) and rheumatoid arthritis (RA), improving mobility and reducing inflammation without NSAIDs or steroids.

Mechanism in Arthritic Joints

• Inhibits COX-2 enzyme
• Reduces pro-inflammatory mediators (IL-6, TNF-α)
• Enhances cartilage metabolism and synovial fluid production
• Decreases joint effusion

Types of Arthritis Benefiting from Laser

• 骨关节炎: knees, hips, spine
• 类风湿性关节炎: hands, wrists, elbows
• Gouty arthritis (in early inflammatory stages)
• Psoriatic arthritis

✅ Case Study 1: Knee Osteoarthritis

病人: Male, 64, Kellgren-Lawrence Grade II OA
治疗计划: Class IV, 980nm, 8W, 8 J/cm², 3x/week for 4 weeks
成果:

• Decrease in WOMAC pain index by 42%
• Walking speed improved (TUG test: 17s → 11s)
• No medication used during the period

✅ Case Study 2: Rheumatoid Arthritis in Hands

病人: Female, 49, RA for 8 years, swollen PIP and MCP joints
规程: 810nm laser, 6 J/cm²/joint, 2x/week for 6 weeks
结果:

• Morning stiffness duration halved
• Synovial thickening on ultrasound reduced
• Reported pain decreased from VAS 6 to 1.5

Clinical Guidelines

• Should be part of a multi-modal management plan
• Combine with physical therapy (ROM exercises)
• Long-term maintenance: 1–2 sessions/month for chronic cases

禁忌症

• Active RA flares with systemic symptoms
• Over malignant lesions
• Use caution with anticoagulant medications

结论

Laser therapy is a safe, effective adjunct in managing arthritic pain and inflammation. With proper settings and clinical expertise, it can restore mobility and improve quality of life without the side effects of systemic drugs.