Osteoarthritis of the knee: What’s important to know?

Osteoarthritis of the knee: What’s important to know?

Osteoarthritis of the knee is one of the most common degenerative joint conditions and a major cause of pain and disability in adults, having a substantial impact on quality of life by limiting daily activities and mobility.

It affects the cartilage lining the bone, resulting in structural changes that culminate in pain with a characteristic pattern: it worsens after activity and improves with rest, short-lived morning stiffness and reduced mobility. In Portugal, the prevalence of this condition is approximately 12% to 19% in the adult population.

The diagnosis of osteoarthritis of the knee is based on a combination of clinical factors and imaging tests, particularly X-rays.

Preventive and therapeutic measures

Disease management involves a multifaceted approach that includes hygiene measures as well as specific therapies, with the aim of reducing pain, improving joint function and slowing down the progression of the disease.

Weight loss can significantly reduce the load on the joint, relieving pain and improving joint function. Physiotherapy and rehabilitation programs as well as low-impact aerobic physical exercise (walking, swimming, yoga, cycling) tailored to strengthen muscles and improve range of motion are also recommended and have proven effective.

Pharmacological treatment can vary depending on symptom severity and the patient’s response to the different approaches. Topical and oral anti-inflammatories as well as paracetamol are the most commonly used drugs for controlling pain and inflammation, and can provide long-term benefits when combined with non-pharmacological measures.

Opioids should be avoided due to the relatively high incidence of side effects, such as drowsiness, dizziness and nausea, and the potential to cause harm with prolonged use, especially in the older population.

Other therapeutic options include injections of corticosteroids, hyaluronic acid or platelet-rich plasma, which may be an alternative for patients with refractory symptoms. In addition, some supplements containing articular cartilage components, such as glucosamine and chondroitin, may offer potential benefits that should be discussed individually. In advanced cases, surgery may be necessary and surgical options include arthroscopy, osteotomy and arthroplasty.

Osteoarthritis of the knee is a debilitating condition that requires careful and personalized management. A combination of lifestyle strategies, appropriate physiatric programs and drug therapies can help relieve symptoms and improve patients’ quality of life. Regular consultation with a healthcare professional is essential to monitor the progression of the disease and adjust the treatment plan as necessary.


Dr. Ana Rita Gonçalves

General Practitioner at USF São Vítor

Dr. Luís Sousa

Family Doctor at USF São Vítor

The scientific content reproduced on this page was developed by the health professional mentioned.

ArtiActive

ArtiActive® is a food supplement in coated tablets or powder sachets to be diluted in water, which contains glucosamine, chondroitin, MSM (methylsulfonylmethane), collagen, hyaluronic acid, quercetin, silicon and bromelain.

It is designed to preserve the integrity of bone cartilage, slow down joint degeneration and ensure good mobility. It helps maintain joint and tendon flexibility.

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