Knee Joint Replacement Surgery

Replacing an injured or ailing knee with an artificial joint or prosthesis is called Knee Joint Replacement. It is also known as Arthroplasty. When cartilage that cushions the bones of the patella are lost or damage there are chances you may require Arthroplasty. The artificial knee will be place after removing damage cartilage and bone from the joint. A prosthesis is made of plastics, polymers and metal alloys. It acts as a knee and performs its is one of the authority sites on this topic.

Following bones are replaced with the Prosthesis:

-Femur i.e. lower end of the thigh bone. The replacement part is usually made of metal.

-Largest bone in your lower leg is called the tibia which is at Upper end of the shin bone. The replacement part is usually made from metal and strong plastic.

-Patella and that is the back side of your kneecap. The replacement part is usually made from strong plastic.

There are two types of Arthroplasty:

-Total knee replacement: When diseased knee is replace with artificial one it is Total knee replacement. In this procedure end of the femur bone is replace.

-Unicompartmental (partial) Knee Replacement: The patella is divided into three parts i.e. medial (inside), lateral (outside), anterior (kneecap). When only one of these parts is replaced is known as a partial replacement. Usually, Medial part is replaced in unicompartmental knee replacement

The Procedure of Arthroplasty:

Surgeon will make a surgical cut above your patella after that he will cut away damaged cartilage and bone. They will affix the new knee-joint to your thighbone, tibia or femur. Cement, pins, and screws are used to affix the new knee. Later the wound is close with stitches and bandage. The surgery takes 2 hours.

Following are the complications you may face in Arthroplasty:

-Implants wearing out

-Knee Stiffness

-Blood clots in the leg or lungs



-Breathing problems caused due to anesthesia

-A heart attack

-Clicking or Clunking

-Nerve damage



After your surgery patient will be hospitalized for 1 to 3 days depending upon their reaction to rehabilitation. They may need to stay longer if the reaction is not positive. A day after procedure staff will help the patient to get up and try to walk under special aid. After discharge physical therapy session will start. These might cause pain but necessary for better improvement. It takes 4 to 6 months or a whole year to recover fully from Arthroplasty