Understanding Osteoarthritis: Causes, Symptoms and Treatment Options

Osteoarthritis is the most common form of arthritis, and one of the leading reasons people consult an orthopedic surgeon about joint pain. Despite how common it is, there's a lot of confusion about what it actually is and what treatment involves. This article covers the basics in plain language.

What Is Osteoarthritis?

Osteoarthritis develops when the cartilage that cushions the ends of bones within a joint gradually wears down over time. As this cushioning thins, bones can move less smoothly against each other, which leads to pain, stiffness and, in some cases, changes in the shape of the joint. It most commonly affects weight-bearing joints such as the knee and hip, as well as the hands and spine.

What Causes It?

Osteoarthritis is generally the result of cumulative wear on a joint over time, and several factors can contribute to this, including age, previous joint injuries, repetitive joint stress, joint alignment, and family history. It's rarely caused by a single factor alone.

Common Symptoms

• Joint pain that worsens with activity and improves with rest
• Stiffness, particularly after periods of inactivity or first thing in the morning
• Reduced range of movement in the affected joint
• A grating or crackling sensation during movement
• Swelling around the joint in some cases

How Is It Diagnosed?

Diagnosis typically involves a physical examination of the joint's movement, stability and areas of tenderness, along with X-rays to assess the extent of cartilage loss and any changes to the bone. Your symptoms and how they affect your daily activities are just as important to this assessment as the imaging findings.

Treatment Options

Most cases of osteoarthritis are initially managed without surgery. Common approaches include pain-relief medicines, physiotherapy and targeted strengthening exercises, weight management where relevant, activity modification, and in some cases joint injections. These measures aim to reduce pain and maintain function, and many people manage their symptoms this way for a long time.

When osteoarthritis is advanced and non-surgical treatment is no longer providing meaningful relief, joint replacement surgery may be discussed. This involves replacing the damaged joint surfaces with an implant designed to reduce pain and help restore smoother movement. As with any surgical decision, this is only recommended after a detailed evaluation of your specific joint and circumstances.

Osteoarthritis is a gradual, individual condition, and treatment is not one-size-fits-all. If joint pain is affecting your daily life, an orthopedic evaluation can help clarify what stage your joint is at and which treatment options are appropriate for you.