Knee replacement is a surgical procedure often needed when the knee joint has suffered extensive damage, leading to persistent pain, swelling, and difficulty in movement. This damage usually results from degenerative joint diseases such as osteoarthritis, rheumatoid arthritis, or post-traumatic arthritis. Let’s delve deeper into why knee replacement is necessary and what factors make it the best solution for many individuals struggling with knee-related problems.
1. Osteoarthritis: The Most Common Cause
Osteoarthritis is one of the primary reasons for knee joint damage, especially in older adults. As we age, the cartilage that cushions the knee joint gradually wears down, causing bones to rub against each other. This leads to pain, swelling, and stiffness, making it difficult to walk, climb stairs, or even perform daily activities. When the pain becomes unbearable and doesn’t respond to non-surgical treatments, knee replacement surgery becomes a necessary intervention to restore joint function and relieve pain.
2. Rheumatoid Arthritis: Inflammatory Joint Damage
Rheumatoid arthritis (RA) is an autoimmune disorder where the immune system mistakenly attacks the joint lining, causing inflammation and damage. This condition affects both knees simultaneously and leads to severe pain and swelling, limiting movement. Over time, rheumatoid arthritis can damage the cartilage and bones, necessitating a knee replacement to regain mobility and reduce pain.
3. Post-Traumatic Arthritis: Injury-Induced Damage
Sometimes, knee injuries from accidents, sports, or falls can lead to a condition known as post-traumatic arthritis. This form of arthritis occurs when the cartilage is damaged due to fractures, torn ligaments, or meniscus injuries. Even after the initial injury heals, the joint may become stiff, painful, and prone to further degeneration, eventually requiring surgery to restore normal function.
4. Deformities and Knee Malalignment
Certain individuals may have knee deformities or misalignment that lead to uneven wear and tear of the knee joint. Over time, this abnormal alignment can cause increased pressure on one side of the knee, resulting in pain and loss of function. A knee replacement can correct these deformities, helping restore alignment and reducing discomfort.
5. Failed Previous Surgeries
In some cases, patients may have undergone knee surgeries like arthroscopy, cartilage repair, or ligament reconstruction that didn’t produce the desired results or failed to address the root cause of the pain. When these procedures are unsuccessful, knee replacement surgery may be the only option left to provide long-term relief.
