Osteoarthritis – Types and causes & treatments. 

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Overview

Osteoarthritis (OA) is the most common chronic joint condition, causing the breakdown of protective cartilage, primarily affecting hands, knees, hips, and spine. It leads to pain, stiffness, and reduced movement, often driven by age, obesity, and joint injury. While not curable, it is managed through exercise, weight loss, and pain relief.

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Symptoms

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The main symptoms of osteoarthritis are joint pain and stiffness, and problems moving the joint.

Some people also have symptoms such as:

• swelling

• tenderness

• grating or crackling sound when moving the affected joints

The severity of osteoarthritis symptoms can vary greatly from person to person, and between different affected joints.

For some people, the symptoms can be mild and may come and go. Other people can experience more continuous and severe problems which make it difficult to carry out everyday activities.

Almost any joint can be affected by osteoarthritis, but the condition most often causes problems in the knees, hips and small joints of the hands.

You should see your GP if you have persistent symptoms of osteoarthritis so they can confirm the diagnosis and prescribe any necessary treatment.

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Causes

Osteoarthritis is caused by the gradual breakdown of protective cartilage on the ends of bones, leading to pain, stiffness, and reduced joint mobility. While often associated with age and wear and tear, it is actually a whole-joint disease driven by factors like joint injury, obesity, genetics, and repetitive strain. 

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Key Causes and Risk Factors

• Obesity: Extra weight puts excessive, direct strain on weight-bearing joints (knees, hips) and fat tissue produces proteins causing harmful joint inflammation.

• Repetitive Use/Overuse: Jobs or sports that require constant, repetitive motion on a specific joint.

• Genetics: Family history can influence the likelihood of developing it.

• Sex: Women are more likely to develop the condition than men.

• Joint Deformities: Being born with or developing abnormal joint structures.

• Other Conditions: Secondary osteoarthritis can result from other diseases like rheumatoid arthritis or gou

• Age: Risk increases significantly as you get older, particularly over age 45.

• Joint Injury or Trauma: Past injuries from sports, accidents, or surgery can lead to faster cartilage breakdown

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Treatments ?

​Osteoarthritis (OA) treatment focuses on reducing pain, improving joint function, and slowing progression through a combination of lifestyle changes, medication, and, in severe cases, surgery. Key approaches include regular low-impact exercise, weight management, and physical therapy. While no cure exists, these methods effectively manage symptoms. 

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Non-Surgical Treatments (Primary Approach)

• Medication:

  • Topical: NSAID gels or creams (e.g., ibuprofen gel) applied directly to the joint.

  • Oral: Acetaminophen or NSAIDs (ibuprofen, naproxen) to reduce pain and inflammation.

  • Injections: Cortisone (steroid) injections or hyaluronic acid (joint lubrication) injections.

• Alternative Therapies: Acupuncture, massage, meditation, and tai chi. 

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• Lifestyle Measures: Regular exercise (swimming, cycling, walking) strengthens muscles around joints. Maintaining a healthy weight reduces pressure on knees, hips, and back.

• Physical & Occupational Therapy: Targeted exercises improve range of motion. Therapists can provide tools like braces, splints, or shoe inserts.

• Heat/Cold Therapy:

   Heat relaxes muscles and improves flexibility, while cold packs can numb nerves and reduce inflammation

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Surgical Treatments

If non-surgical options fail to relieve severe pain and dysfunction, surgery may be considered: 

• Joint Replacement (Arthroplasty): Replacing damaged joints, most commonly hips and knees, to restore mobility and eliminate pain.

• Joint Fusion (Arthrodesis): Fusing bones in a joint to provide stability and reduce pain, often used for smaller joints. 

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Managing Treatment Side Effects

• NSAIDs: Can cause stomach issues, cardiovascular risks, or renal issues if used long-term.

• Acetaminophen: Risk of liver damage if overused.

• Injections: Temporary soreness at the injection site.

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