Knee Osteoarthritis and Joint Replacement
Worn knee cartilage causes pain and stiffness that limits daily life. Modern treatment ranges from simple measures to a highly successful replacement.
July 4th, 2026
What happens in the knee?
Osteoarthritis is “wear and tear” of the smooth cartilage that cushions the knee joint. As it thins, bone rubs on bone, causing pain, swelling and stiffness — especially while walking, climbing stairs or standing up.
Common symptoms
- Deep knee pain that worsens with activity
- Morning stiffness that eases as you move
- Swelling, a grinding sensation or reduced bending
- Difficulty walking longer distances or using stairs
Non-surgical care comes first
Many people improve without surgery. Weight management reduces load on the joint, and targeted physiotherapy strengthens the muscles that support the knee.
Pain-relieving medicines, activity modification and sometimes injections can control symptoms for years.
When is replacement needed?
If pain persists despite these measures and quality of life suffers, a total or partial knee replacement can help. Worn surfaces are replaced with smooth, durable implants.
It is one of the most successful and satisfying operations in medicine — most patients walk within a day or two and return to normal activities over a few weeks with guided physiotherapy.
Disclaimer: This article is for general awareness only and is not a substitute for professional medical advice, diagnosis or treatment. Always consult a qualified doctor about your health.