Knee Arthritis: Everything to know
Insights

Knee Arthritis: Everything to know

London Cartilage Clinic

As we age, our bodies often remind us of the wear and tear they've endured over the years, and for many, knee arthritis becomes an unwelcome companion. In our latest blog, we'll delve into the intricacies of knee arthritis, exploring what it is, causes and discussing the array of treatments aimed at providing relief and improving mobility for those affected by this common yet challenging condition.

What is knee arthritis?

The knee is a complex joint that allows for smooth movement and supports the body's weight. Arthritis is a term used to describe inflammation and deterioration of the joints. Knee arthritis refers to the specific condition where the knee joints are affected. When knee arthritis sets in, it can lead to pain, swelling, and stiffness in the affected joint. This can significantly impact a person's mobility and quality of life, making everyday activities such as walking or climbing stairs challenging.

What causes knee arthritis?

The exact causes of knee arthritis are not yet fully understood. However, research suggests that a combination of genetic factors and lifestyle choices play a significant role in its development. Understanding the genetic predisposition to knee arthritis is a complex field of study. Researchers have identified specific gene variations that may predispose individuals to this condition. These genetic factors can influence the body's:

  • Inflammatory response
  • Joint structure
  • Cartilage health

All of which are crucial in the development of knee arthritis.

Genetic factors in knee arthritis

Studies have shown that certain gene variations may increase the risk of developing knee arthritis. However, having these genetic factors does not guarantee that the condition will occur. Environmental factors and lifestyle choices also play a role.

Lifestyle and environmental triggers

Obesity, repetitive stress on the knee joints, and previous knee injuries can increase the risk of developing knee arthritis. Additionally, occupations that involve kneeling or squatting for prolonged periods may contribute to its onset. Environmental factors such as diet, exercise habits, and exposure to joint-damaging activities can significantly influence the development and progression of knee arthritis. Maintaining a healthy weight, engaging in low-impact exercises, and protecting the knees from excessive strain are vital in reducing the risk of developing this debilitating condition. By addressing these lifestyle and environmental triggers, individuals can take proactive steps towards preserving the health and function of their knee joints.

Common symptoms of knee arthritis

Symptoms of knee arthritis can vary from person to person with many people experiencing:

  • Pain and stiffness in the joint
  • Swelling in the knee joint
  • Grinding sensation
  • Clicking sounds when moving
  • Joint tenderness
  • Joints appearing slightly larger
  • Limited range of movement
  • Weakness

Should osteoarthritis develop in your knees, it's common for both knees to eventually be impacted, unless it stems from a singular injury or condition affecting just one knee. You should consult with a medical professional if you are suffering from the above symptoms.

Different types of knee arthritis

There are several types of knee arthritis, including: Osteoarthritis: the most common form, typically caused by wear and tear on the joint over time. Rheumatoid arthritis: an autoimmune disease that causes inflammation in the joints. Post-traumatic arthritis: this may develop after an injury or trauma to the knee. Each type of knee arthritis has its own set of symptoms and treatment options. It is essential to consult a healthcare professional for an accurate diagnosis and personalised treatment plan tailored to individual needs.

Cartilage specialists

Headed by Professor Paul Lee, London Cartilage Clinic offers industry-leading treatments for knee arthritis, joint pain and discomfort. Our goal is to achieve long-lasting benefits for our patients and we are committed to providing our patients with the latest in orthopaedic care and regenerative medicine, helping them achieve the best possible outcomes for their knee health. Book a Consultation

Frequently Asked Questions

  • <a href="https://londoncartilage.com/mfat/">MFAT therapy</a> functions by utilising mesenchymal stem cells (MSCs) extracted from adipose tissue. These cells are pivotal in tissue regeneration and regulating inflammatory reactions, providing alleviation not just for knee osteoarthritis but also for ailments such as hip osteoarthritis and assorted musculoskeletal disorders.
  • <a href="https://londoncartilage.com/bmac-injection/">BMAC injections</a> entail harvesting bone marrow from the individual, isolating the advantageous cells, and subsequently administering them into the afflicted knee region. This method leverages the innate healing prowess of the body, fostering tissue renewal and diminishing inflammation within the knee joint. Executed with meticulous guidance, the procedure optimises therapeutic advantages while ensuring patient ease.
  • <a href="https://londoncartilage.com/prp-injection/">Platelet Rich Plasma (PRP) injections</a> represent an innovative and continually advancing approach to address injuries in cartilage, tendons, muscles, joints, and ligaments. This treatment harnesses the body's inherent healing properties found in your blood to alleviate pain and enhance joint function, enabling a seamless return to your daily activities without discomfort. The London Cartilage Clinic provides specialized PRP treatments, catering to individuals seeking the most effective solutions for their joint pain.
  • <a href="https://londoncartilage.com/nstride-therapy/">nStride therapy</a> presents a viable option for managing osteoarthritis. This therapy involves utilising a concentrated solution derived from your own blood, abundant in growth factors and anti-inflammatory proteins. Through injecting this solution into the knee joint, nStride aims to alleviate pain, enhance function, and potentially halt the advancement of osteoarthritis. This minimally invasive procedure taps into the body’s innate healing processes, providing a hopeful avenue for individuals seeking relief from joint pain without undergoing surgery.

Legal & Medical Disclaimer

This article is written by an independent contributor and reflects their own views and experience, not necessarily those of London Cartilage Clinic. It is provided for general information and education only and does not constitute medical advice, diagnosis, or treatment.

Always seek personalised advice from a qualified healthcare professional before making decisions about your health. London Cartilage Clinic accepts no responsibility for errors, omissions, third-party content, or any loss, damage, or injury arising from reliance on this material.

If you believe this article contains inaccurate or infringing content, please contact us at [email protected].

Last reviewed: 2026For urgent medical concerns, contact your local emergency services.

London Cartilage Clinic

Modern treatments, designed for lasting knee outcomes

Every treatment plan is selected to help you return to the quality of life you deserve. Our team combines up-to-date techniques with consultant-led decision making across cartilage repair, regeneration and replacement.

What your journey can look like

Step 01

Consultant-Led Assessment

Symptoms, imaging and goals reviewed in one structured appointment.

Step 02

Personalised Treatment Plan

A clear route chosen from repair, regeneration or replacement options.

Step 03

Precision Delivery

Modern techniques and specialist equipment matched to your diagnosis.

Step 04

Long-Term Knee Health

Follow-up guidance focused on durable function and quality of life.

Will the Arthrosamid work for me

PAAG-8+ Questionnaire

A bright, structured entry point for patients exploring Arthrosamid. The questionnaire helps frame suitability, expectations, and 24-month clinical benefit discussion before a fuller consultant-led review.

Designed for shared decision-making. It does not replace specialist consultation, examination, imaging review, or formal medical advice.

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