Total Knee Replacement: India What we know and our Experience at KMC Hospitals Group

Total Knee Replacement: What we know and our Experience at KMC Hospitals Group
Dr S ChockalingamD.Ortho, FRCS [UK],FRCS [Tr & Ortho], Dr P R Ramasamy MS [Ortho], FRCS [UK]

This is an article I wrote for KMC News which is distributed to Referring and primary care doctors in Trichy Region on 14th December 2009

Total Knee Replacement is one of very successful and common Orthopaedic Operations we do at KMC Hospitals. The incidence of this surgery increasing in number reflects what is happening around the world.[Ref 1] The reason is why it is not more popular than it is at the moment is the cost of the surgery. This is obviously the point I would like to start of this brief about this surgery. The reason it is expensive at present to the reach of the common man is the technology that goes behind in the implant that is used.[ref 2]

The implant often made of strong Cobalt Chrome alloy, though titanium and ceramic are used in some designs. Any metal however polished, will have surface irregularities if one looks under the electron microscope. The surface finish and the material then become very important in reducing this irregularity and thus help in reducing the wear of the material with which this articulates.[Ref 3 and 4]

The material with this metal articulates is a specialized plastic called Ultra High Molecular Weight Polyethylene. Newer highly cross linked Polyethylene has come into use in hip replacement surgery.[ ref 5] However the quality of the Plastic used is controlled in the way this plastic insert is manufactured. This helps in the long term success of the knee replacement surgery.

The long term success of the knee replacement surgery is more important that looking at short term benefits of this surgery.[Ref 6] Any material placed between the end of the femur and tibia will relieve the arthritic pain. What is more important however is the durability of the material in staying without damaging the underlying bone!

The damage to the underlying bone is the worst scenario when faced with the failed knee replacement surgery. One fears this as the damage often starts without any warning such as pain. When one faces a failed knee replacement, the surgical challenges becomes daunting and more importantly becomes very expensive.
This brings me back to the opening paragraph of this brief, the cost of this joint replacement surgery.

A little bit more cost at the initial replacement surgery has been shown to reduce the chances of revision surgery in the long run. Revision surgery after total knee replacement is not something an ordinary individual can tackle not only as a patient but also financially. One cannot expect the Government to subsidize that cost as well as it will be impossible.

What we do at KMC Hospitals to ensure the long term success of this surgery are as follows.
We have a dedicated team involved in this surgery. The chances of infection developing after such surgery should be kept to absolute minimum and we do this by controlling the theatre environment and the personnel involved. We have only used prosthesis which has follow up data in the long run. Post operative protocols have now been developed to suit our working conditions. There are specific appropriate pain control and rehabilitation in place for these patients, both of which go hand in hand.

I have shown some examples of patients we have operated and what they look like and what they can do after such major surgery!

After total knee replacement this patient is able to sit cross legged! and riding a two wheeler at four weeks!, a patient works as a security at the age of 70 going to work by bicycle|!




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