Partial knee replacement is a surgery that may be done to treat severe knee arthritis that affects only one part of the knee. A knee surgeon may suggest knee joint replacement if someone has:
Knee replacement surgery aims to decrease pain and restore function.
Total knee replacement is done when osteoarthritis affects the whole knee and the whole knee is replaced. Sometimes, osteoarthritis is limited to just one part (compartment) of the knee and may be corrected with ‘partial’ knee replacement.
In a partial knee replacement surgery, only the damaged portion is replaced with new metal and plastic surface. The healthy cartilage and bone in the rest of the knee are preserved. Generally, partial knee replacement uses implants placed between the end of the thigh bone and the top of the shin bone. Sometimes, partial knee replacements may also replace the part of the joint under the kneecap.
Partial knee replacement surgery includes a smaller surgical cut than traditional total knee replacement surgery. The advantages of this surgery over total knee replacement include:
Since the bone, cartilage, and ligaments in the healthy portion of the knee are kept, the majority of people find that a partial knee replacement feels more natural than a total knee replacement, and it typically bends much better.
The possible disadvantages of partial knee replacement may include somewhat less predictable pain relief and the possibility for more surgery. Like, a total knee replacement may be required in the future if arthritis develops in the parts of the knee that have not been replaced.
A partial knee replacement operation generally takes one to two hours. As it is a surgery, it also involves some risks. Very rare, but the risks may include
Since a partial knee replacement is performed through a smaller, less invasive incision, the stay in hospital is shorter, and recovery is faster. You may go home 1 to 3 day after surgery and resume your normal daily activities after 6 weeks of the surgery.
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