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Common Types of Knee Arthritis Los Angeles, CA
woman sitting on bed with knee pain

Knee arthritis is a common condition that affects millions of people worldwide, particularly as they age. It occurs when the cartilage in the knee joint begins to deteriorate, leading to pain, stiffness, and reduced mobility. There are several types of knee arthritis, each with distinct characteristics and causes. Understanding these types is essential for proper diagnosis and treatment. Here are some common types of knee arthritis.

Osteoarthritis (OA):

Osteoarthritis is the most common type of knee arthritis. It is often referred to as “wear and tear” arthritis because it typically develops as a result of the natural aging process or excessive use of the knee joint over time. In OA, the protective cartilage that cushions the ends of bones in the knee joint breaks down, leading to pain, swelling, and reduced joint mobility. It can affect any age group, but it becomes more prevalent with age.

Rheumatoid Arthritis (RA)

Rheumatoid arthritis is an autoimmune disease that affects the entire body, including the knee joints. In RA, the body’s immune system mistakenly attacks the synovium, the lining of the membranes that surround the joints. This inflammation can lead to the destruction of the cartilage and bone within the knee joint. RA often affects both knees and is characterized by swelling, pain, and stiffness that is typically worse in the morning.

Post-Traumatic Arthritis

Post-traumatic arthritis can develop after a severe knee injury, such as a fracture or ligament tear. Even after proper treatment and healing, the knee joint can be left with residual damage, leading to the gradual deterioration of the cartilage. Symptoms may not appear immediately but can develop years after the initial injury, resulting in pain and reduced joint function.

Juvenile Arthritis

Juvenile arthritis is a type of arthritis that affects children and adolescents under the age of 16. It can manifest in various forms, including juvenile idiopathic arthritis (JIA), which often affects the knees. Symptoms include pain, swelling, and joint stiffness. Juvenile arthritis can persist into adulthood or go into remission as the child matures into adulthood.


Gout is a type of arthritis that results from the accumulation of uric acid crystals in the joints, including the knees. When uric acid levels become elevated in the bloodstream, these crystals can deposit in the knee joint, leading to sudden and severe pain, swelling, and redness. Gout attacks can be triggered by dietary choices and lifestyle factors, and they often affect one joint at a time.

Ankylosing Spondylitis

Ankylosing spondylitis is a type of inflammatory arthritis that primarily affects the spine but can also involve the knees and other joints. It is characterized by chronic inflammation, pain, and stiffness, which often worsen with rest and improve with movement. Over time, the inflammation can lead to joint fusion and limited mobility.

Understanding the type of knee arthritis is crucial for developing an appropriate treatment plan. Treatments may include medication, physical therapy, lifestyle modifications, and in some cases, surgical interventions like knee replacement surgery. Early diagnosis and intervention are essential to manage knee arthritis effectively and improve a patient’s quality of life. If you are experiencing symptoms of knee arthritis, consult our team at Robotic Hip and Knee Replacement, LA, for a proper evaluation and guidance on the best course of treatment. Call our Los Angeles, CA, office to schedule a knee arthritis treatment consultation.

Posted on behalf of Dr. Farzin Kabaei, MD

8436 West 3rd Street Suite 800
Los Angeles, CA 90048

Phone: (310) 792-9300


Mon - Fri 8AM - 5PM

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