replacement surgery biologically termed as knee arthroplasty is a procedure
to remove the diseased part of the knee bone and replace it with an artificial
joint. The artificial joint used is known as prosthesis and is made up
of a combination of some metals and plastics. It is required to be done
in case of diseases like osteoarthritis, knee tumour and rheumatoid arthritis.
In this surgery, an incision is made at the front of knee. The kneecap
is positioned in such a way that the thigh bone and skin bone can be easily
cut. Now these are replaced by prosthesis. The size of prosthesis is different
for males and females depending upon the difference in their anatomy.
Special types of cements are used to fix the prosthesis with thigh bone,
shin bone and the kneecap. These days a computer navigated MITKR is used,
which determines complete alignment of the prosthesis with the surrounding
bones. It also ensures low blood loss, increased efficiency and quicker
in the field has provided a lot of help to the medical practitioners.
In majority of case there are no complications. In very few cases the
replaced joint may get loosened, dislocated or infected. Any of these
conditions may lead to removal of joint.
The knee joint replacement surgery is regarded as a major surgery. It
aims to provide smooth and painless movement to the joint.
conducted shows that this surgery has 90-95% success rate. On an average
the people who have undergone this surgery dont face any problems
related to knee joint till 10-15 years. But if a patient does laborious
or strenuous activity then he may face problems at an early stage. After
this surgery the doctors recommend light and regular exercises.
the joint movements quicker and makes the recovery faster. It is also
observed in many cases that the strength of joint increases leading to
longer joint life and better ability to perform tasks like running, jumping,
kicking, etc. If you dont do these exercises then the legs become
bent and body posture becomes deformed.
Besides the above mentioned precautions there are several things to be
taken care of when you decide to get your knee replaced. It mainly includes
your medical check-up two or three weeks before your surgery. It is purely
your responsibility to tell your doctor about any other medicines that
you are taking before the surgery. Now let your doctor decide if you have
to continue with those or not. In case of emergency you should have someone
who can donate blood to you if required. Few more tests like urinary evaluation
and blood test determine your general fitness.
After the surgery your stay in hospital depends upon your speed of recovery.
In this time a physical therapist teaches you some very basic exercises
to restore your normal joint movement. Overall, this surgery has now become
a very save methodology to treat patients suffering from joint problems
and a lot many good hospitals are available in India which provide this