Knee Replacement: Knees carry our body weight to a great extent, and hence chances for their exhaustion are quite high. The problems might start as early as mid-30's and knee replacement is the most commonly performed replacement surgery across the world.
Knee replacement surgery involves making an incision along the center of the knee and removing the damaged parts of the thigh and calf bones i.e. the femur and tibia using a bone saw. The new components are then fixed with the help of bone cement. Flexible polyethylene cushion is added between the new joint and old tibia surface to offer some shock absorption and reduce friction.
Hip Replacement: The hip joint also has to bear a lot of friction, and even more if you are overweight. The majority of patients who suffer need hip replacement are suffering from osteoarthritis. The hip joint wears with age, with depleting calcium.
Hip replacement surgery involves replacing the ball and socket joint that form the hip joint. The prosthetic ball is added after removal of the femoral head. This ball is connected to a stem which is inserted into the marrow of the femur to fix it and form a new joint. The rest of the joint is resurfaced and lined with a prosthetic cup forming the socket. This procedure is very popular and very successful, however since running; jumping and other strenuous activity will be prohibited to an extent.
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