Understanding Knee Osteoarthritis: Definition and Mechanisms
Knee osteoarthritis, or gonarthrosis, is a chronic condition characterized by the progressive wear of the cartilage that protects the knee joint. This wear reduces the ability to glide smoothly between the bone surfaces, primarily the femur, tibia, and sometimes the patella, thus causing painful friction and bone deformities. Although this condition mainly affects people aged 50 and over, it can also appear in younger individuals, particularly after trauma or in the presence of aggravating factors.Cartilage plays an essential protective role, ensuring the fluidity and cushioning of movements. In gonarthrosis,the cartilage gradually deteriorates,
reducing the joint space. This deterioration leads to local inflammation and, over time, increasing pain and decreased joint mobility. The joints primarily affected are the patellofemoral, tibiofemoral, and tibiofibular joints. It is important to note that the progression of osteoarthritis is generally slow and that symptoms may appear gradually. However, with appropriate management, it is possible to slow the progression of the disease, relieve pain, and improve patients’ quality of life. Factors that promote the development of knee osteoarthritis
Knee osteoarthritis does not result from a single cause, but from a combination of factors that often act together: Age: The risk naturally increases with age, due to a decrease in cartilage quality.
Sex:
Women are more frequently affected, especially after menopause.
- Genetics: Certain hereditary predispositions can promote rapid cartilage wear.
- Overweight and obesity: Excess weight increases the load on the knee and can worsen local inflammation.
- History of trauma: A fracture, sprain, or meniscal tear can precipitate osteoarthritis.
- Joint malformations: Poor knee alignment or malformed cartilage facilitates wear and tear.
- Chronic inflammatory diseases: Diabetes or other metabolic diseases can maintain joint inflammation.
- Gonarthrosis is therefore a multifactorial disease whose development results from a progressive imbalance between cartilage destruction and repair. Its close link with local chronic inflammation is a key target of current treatments. Discover how to recognize the first signs of knee osteoarthritis: symptoms, early diagnosis, and tips for taking care of your joints.
- Identifying the first signs of knee osteoarthritis: how to recognize the progression Early detection of knee osteoarthritis symptoms is crucial for effective management. The first signs are often subtle and can be mistaken for temporary pain related to overexertion or unusual exertion.
Diffuse knee pain

Furthermore, the knee may show visible or tender swelling, a sign of local inflammation. A grinding or cracking sensation
when bending or straightening the knee, due to bone-on-bone friction, is also a symptom to watch for. What symptoms should prompt a consultation with a healthcare professional?
Persistent knee pain that gradually increases. Joint stiffness, especially felt in the morning or after a period of inactivity. Swelling or localized heat around the joint. Frequent clicking or popping sounds with limited range of motion. A feeling of instability or locking of the knee when moving.
It is essential not to ignore these signs, as an early diagnosis often allows for better pain management and adjustments to treatments to slow the progression of knee osteoarthritis.
- Medical examinations to confirm knee osteoarthritis
- When a patient presents with symptoms suggestive of osteoarthritis, the general practitioner or a specialist (rheumatologist or orthopedist) conducts a thorough clinical examination and then prescribes further tests to confirm the diagnosis.
- Standard knee X-rays
- are the first-line investigation. X-rays allow observation of the condition of the bones and cartilage thanks to the visible joint space between the bones. A reduction in this space, as well as the presence of bone spurs (osteophytes), are typical signs of knee osteoarthritis. X-rays also allow monitoring of the disease’s progression and classification of osteoarthritis into four stages:
Stage 1:
Early signs of wear and tear, often asymptomatic.
Stage 2:
Onset of mild pain and the first visible changes. Stage 3: Worsening pain and progressive loss of mobility.
- Stage 4: Advanced osteoarthritis with significant deformities and functional limitations.
- Sometimes, more sophisticated examinations such as MRI may be prescribed to assess the condition of the soft tissues and rule out other pathologies such as a meniscal or ligament tear. Importance of a medical consultation for a reliable diagnosis.
- Only a medical consultation can establish a precise diagnosis. Self-diagnosis is not recommended, as other knee conditions can present similar symptoms. Furthermore, a professional will be able to guide you toward the appropriate treatment, sometimes including the use of recognized therapeutic devices such as Gibaud brand knee braces
- or Donjoy and Thuasne orthotics, which stabilize the joint and reduce pain during movement.
Principles and methods for relieving knee osteoarthritis
The treatment of knee osteoarthritis primarily aims to improve quality of life by reducing pain, limiting stiffness, and maintaining joint function. There is no definitive cure, but many options can slow its progression and alleviate symptoms.
Conservative treatments include: Pain-relieving and anti-inflammatory medications: often prescribed in the acute phase. For example,
Voltaren
is frequently used to reduce inflammation and pain. Dietary supplements:
- Chondrosulf and Genacol , rich in chondroitin and glucosamine, help protect cartilage and soothe inflammation. Physiotherapy:
- essential for strengthening the muscles around the knee and improving mobility. Adapting physical activity: walking, swimming, or cycling to maintain muscle tone without overloading the joint. Weight management: essential for reducing the mechanical load on the knees.Local application of heat and cold:
- to relieve pain and inflammation. Use of orthopedic devices:
- such as the Gibaud knee brace or Thuasne and Donjoy supports to stabilize the knee.
- In addition, an anti-inflammatory diet
- This helps limit the progression of the disease. Favor green vegetables, oily fish rich in omega-3 fatty acids, and nuts. Conversely, reduce your intake of processed foods, foods high in refined sugars, or unhealthy fats. In advanced cases where pain becomes unmanageable and mobility is severely reduced, surgery may be considered, particularly knee replacement. This option should always be discussed thoroughly with a specialist.
- Current advances and resources for living better with knee osteoarthritis In 2025, advances in the treatment of knee osteoarthritis continue to offer encouraging avenues. Several complementary solutions are now available to better support patients both clinically and in their daily lives.
Among them,
natural anti-inflammatory remedies
are gaining popularity due to their adjuvant effects. For example, turmeric, thanks to its curcumin content, is widely studied for its potential to reduce joint inflammation. Another natural therapy used is supplements rich in omega-3 EPA-DHA, which support the regulation of chronic inflammation.
In terms of equipment, recognized brands such as Lafuma Medical and
Coloplast SantĂ© offer innovative devices combining comfort and mechanical support, thus promoting the prevention of repetitive strain injuries. Furthermore, cutting-edge technologies now allow for personalized remote monitoring, facilitating the adaptation of exercises and treatments. The patient’s role is also central. Adherence to a healthy lifestyle, with a balanced diet and regular physical activity, is one of the most effective keys to minimizing symptoms. In addition, some products such as Arthrum or
Serelys These are recommended in conjunction with medical care for their protective and regulatory action on joint tissues. Adopt an anti-inflammatory lifestyle. Use appropriate orthopedic devices.
- Adhere to the prescribed exercise and strengthening program.
- Consult a healthcare professional regularly to adjust your treatment.
- Choose scientifically validated dietary supplements.
- Knee osteoarthritis is not inevitable, and thanks to the many resources available today, it is possible to manage it effectively on a daily basis and maintain independence. However, it is essential to always remember the importance of personalized medical monitoring and vigilance regarding any signs of worsening.


