Partial Knee Replacement, also known as Unicondylar Knee Replacement or Unicompartmental Knee Replacement is a surgical procedure performed to alleviate pain and mobility issues in patients who have limited damage to knee joints. The damage could be due to arthritis, rheumatoid arthritis or trauma.

Before going into details of partial knee replacements, we must understand the anatomy of a knee joint.

Knee is the largest joint in our body, where bones of the upper and lower leg meet. It is one of the most complex and extensively used joints which moves like a hinge and facilitates movements like sitting, squatting, walking, and jumping. The knee joint comprises of the following bones:

• Lower end of thigh bone (femur).
• Upper ends of shin bone (tibia) and the smaller shin bone next to tibia (fibula).
• Kneecap, a bone at the front of the knee (patella).