Knee replacement is also known as knee arthoplasty. This is a surgical procedure. It is done for the replacement of weight bearing surfaces of knee joints.  The disability and pain associated with osteoarthritis is relieved to a great extent. This may also be performed for other diseases such as psoriatic arthritis as well as rheumatoid arthritis. The surgery carries a very high risk and is very complicated.  Knee pain, inflammation and deformity is typically not caused by osteoarthritis.  This is surely not the reason for performing knee replacement.

Other major things that cause debilitating pain include cartilage defects, ligament tears and meniscus tears. Debilitating pain due to osteoarthritis is very commonly seen in elder people. The surgery of knee replacement can also be performed as a total or a partial knee replacement. The surgery mainly consists of replacement of damaged or diseased joint surfaces of the knee with plastic and metal component. It is specially shaped for allowing the knee to have a continuous motion.

Substantial postoperative pain is involved in this operation. Vigorous physical rehabilitation is also included in this. The recovery period can range up to 6 weeks. Sometimes it may take a longer time as well. The use of mobility aids may also be involved. These may include crutches, canes and walking frames. These enable a patient to return to his pre-operative mobility.

The front portion of the knee is exposed in this surgery. The part of quadriceps is also detached from the patella.  The displacement of patella takes place from one side of the joint. Thus the femur and distal are allowed exposing themselves. The ends of the bones are cut very accurately for shaping them. Then there is a removal of anterior cruciate ligament as well as cartilages.