Knee Arthritis: Understanding Symptoms and Treatment Options
Knee arthritis is one of the most common joint conditions affecting New Zealanders, particularly those over the age of 50. It can significantly impact daily life, making simple activities like walking, climbing stairs, or getting up from a chair feel challenging. Understanding what causes knee arthritis, how to recognise its symptoms, and which treatment paths are available can help you take meaningful steps toward managing your joint health effectively.
Knee osteoarthritis develops when the cartilage that cushions the ends of the bones in the knee joint gradually breaks down. Over time, this leads to bones rubbing against each other, causing pain, stiffness, and swelling. While age is a primary risk factor, other contributors include previous knee injuries, excess body weight, genetics, and occupational demands that place repeated stress on the knees. In New Zealand, musculoskeletal conditions like knee arthritis represent a significant portion of GP consultations and ACC-related claims.
Recognising the Symptoms of Knee Arthritis
The symptoms of knee arthritis often develop gradually and can vary from person to person. Common signs include persistent or intermittent knee pain that worsens with activity, morning stiffness that typically eases within 30 minutes, swelling around the joint, a grinding or clicking sensation when moving the knee, and a reduced range of motion. Some people also notice that their knee feels less stable or appears slightly bowed. If you experience any of these symptoms consistently, it is worth seeking a professional assessment from your GP or a physiotherapist.
This article is for informational purposes only and should not be considered medical advice. Please consult a qualified healthcare professional for personalized guidance and treatment.
Knee Arthritis Treatment Options
There is no cure for knee osteoarthritis, but a wide range of knee arthritis treatment options can effectively reduce symptoms and improve quality of life. Treatment is usually approached in stages, starting with conservative methods before considering more invasive procedures. The goal is to relieve pain, maintain function, and slow the progression of the condition where possible.
Conservative options often include physiotherapy, exercise programmes tailored to joint health, weight management, and the use of supportive devices such as knee braces or orthotics. Anti-inflammatory medications, including over-the-counter options like ibuprofen, may be recommended for short-term pain relief. In more advanced cases, corticosteroid injections or hyaluronic acid injections may be administered by a specialist to reduce inflammation and improve lubrication in the joint.
How to Manage Knee Arthritis Day to Day
Learning how to manage knee arthritis in everyday life is just as important as formal treatment. Low-impact exercise such as swimming, cycling, and walking helps maintain muscle strength around the knee without placing excessive stress on the joint. Many New Zealanders find aquatic therapy particularly beneficial, as the buoyancy of water reduces load on the joints while still allowing effective movement.
Diet also plays a role. Maintaining a healthy weight reduces the mechanical load on the knee, and some evidence suggests that anti-inflammatory foods rich in omega-3 fatty acids, such as salmon and walnuts, may support joint health. Avoiding prolonged periods of sitting or standing, using supportive footwear, and incorporating rest breaks into your routine are all practical strategies that can make a noticeable difference.
Knee Pain Relief for Arthritis: Medical and Surgical Approaches
When conservative methods no longer provide sufficient knee pain relief for arthritis, medical and surgical options may be considered. Platelet-rich plasma (PRP) therapy is a newer approach being explored in New Zealand clinics, involving injections of concentrated growth factors derived from the patient’s own blood. While research is still evolving, some patients report meaningful improvements in pain and function.
For those with severe joint damage, knee replacement surgery, either partial or total, may be recommended. New Zealand’s public health system through Te Whatu Ora covers some surgical procedures, though wait times can vary. Private options are also available, and costs differ significantly depending on the provider and procedure complexity.
| Treatment Option | Provider Type | Cost Estimation (NZD) |
|---|---|---|
| Physiotherapy (per session) | Private clinic / ACC-subsidised | $50 – $120 per session |
| Corticosteroid Injection | GP or specialist | $150 – $400 per injection |
| Hyaluronic Acid Injection | Orthopaedic specialist | $400 – $800 per course |
| PRP Therapy | Private clinic | $800 – $2,000 per course |
| Partial Knee Replacement | Private hospital | $15,000 – $25,000 |
| Total Knee Replacement | Private hospital | $25,000 – $40,000 |
Prices, rates, or cost estimates mentioned in this article are based on the latest available information but may change over time. Independent research is advised before making financial decisions.
Accessing Support in New Zealand
New Zealanders have access to a range of public and private resources for managing knee arthritis. ACC may cover treatment costs if the condition is linked to an injury. Arthritis New Zealand is a valuable organisation offering guidance, support groups, and educational resources for those living with joint conditions. Your GP is typically the first point of contact and can refer you to rheumatologists, orthopaedic surgeons, or physiotherapists as needed.
Knee arthritis is a manageable condition when approached with the right combination of professional care, lifestyle adjustments, and informed decision-making. Whether you are in the early stages of noticing joint discomfort or are further along in your arthritis journey, understanding your options allows you to engage more confidently with your healthcare team and make choices that support your long-term wellbeing.
