Non-Surgical Interventions for Knee Osteoarthritis
Non-surgical interventions for osteoarthritis of the knee focus on symptom relief, functional improvement, and delaying disease progression.
Lifestyle and Weight Management
Excess body weight increases mechanical stress on the knees, worsening pain and joint damage. Even modest weight loss of 5–10% significantly reduces symptoms and improves mobility. GPs should encourage sustainable weight management through tailored nutrition advice and structured exercise programs. Referral to dietitians or exercise physiologists can support long-term success.
Exercise and Physiotherapy
Regular exercise strengthens muscles around the knee, improving stability and reducing pain. Low-impact activities such as swimming, cycling, and walking are ideal. Physiotherapists can prescribe tailored programs, including strengthening, stretching, and balance exercises. Hydrotherapy may also benefit patients who struggle with land-based activity.
Pain Management Strategies
First-line pharmacological options include paracetamol and non-steroidal anti-inflammatory drugs (NSAIDs), taken at the lowest effective dose. Topical NSAIDs or capsaicin creams may provide localised relief with fewer systemic side effects. Heat and cold therapy, applied at home, can reduce pain and stiffness during flare-ups.
Assistive Devices and Supports
Knee braces, orthotics, and walking aids reduce joint stress and improve function. Proper footwear is also important for shock absorption and alignment. Occupational therapists can recommend practical supports, including home modifications, to make daily activities easier and safer.
Intra-Articular Injections
For patients with persistent pain, intra-articular corticosteroid injections may provide short-term relief. Hyaluronic acid injections are another option, though evidence for effectiveness varies. These interventions should be considered in combination with lifestyle changes rather than stand-alone solutions.
Psychological and Behavioural Support
Chronic pain often leads to frustration, anxiety, and reduced activity. Cognitive Behavioural Therapy (CBT) and pain management programs help patients develop coping strategies, set achievable goals, and maintain engagement in daily activities. Group-based education sessions also provide peer support.
Compliance and Monitoring
Osteoarthritis management requires long-term follow-up. AI-enabled recall systems can remind patients about exercise reviews, weight management appointments, or medication monitoring. All records must comply with the Australian Privacy Principles (APPs) and RACGP guidelines to ensure secure and audit-ready care.
Conclusion
Non-surgical management of knee osteoarthritis includes weight reduction, physiotherapy, pain relief, assistive devices, and behavioural support. In Australia, these evidence-based strategies align with RACGP standards, ensuring safe, effective, and patient-centred outcomes. Therefore, GPs can help patients maintain function, reduce pain, and delay surgical intervention through structured, holistic care.