When knee pain doesn't respond to conservative modes of treatments like medicines, physiotherapy, etc., knee replacement surgery is the answer. There are two types of surgical options available and knee replacement surgeries done today:
Total Knee Replacement
Ideal candidate: knee arthritis with deformity.
Partial Knee Replacement.
Ideal candidate: Arthritis WITHOUT deformity. Total knee replacement are done more commonly as many patients present to the doctor very late when knee have started deforming.
Total Knee Replacement (TKR)
TKR is now among the safest and most effective of all standard orthopaedic surgeries. During a TKR , the surface of the knee bones is shaved such that the damaged portion of the knee is removed. An artificial knee is implanted using bone cement. A surgeon uses special surgical instruments to cut away the arthritic bone accurately and then shape the healthy bone underneath to fit precisely into the implant components.
Partial Knee Replacement (PKR)
As the name implies, only a part of the knee is replaced in order to preserve as much original healthy bone and soft tissue as possible. These patients generally have osteoarthritis in only one compartment of their knee.