Partial knee replacement is a viable option when osteoarthritis has primarily affected a single compartment of the knee, allowing for the replacement of only the damaged portion while preserving the healthy parts. The procedure may improve the knee’s functionality and reduce pain. Damaged bone and cartilage are replaced during surgery with plastic and metal prosthetic.
In the past, partial knee replacement was typically limited to older patients with limited physical activity levels. Younger patients are now frequently treated with partial knee replacement, as their recovery is quicker and typically less painful. The predicted eligibility rate for partial knee replacement is between 5% and 6% of individuals with arthritic knees.
Osteoarthritis of the medial or lateral knee can be taken into consideration for partial knee replacement. The term “lateral” refers to the joint’s outside compartment, which is the compartment farthest from the opposing knee, while the term “medial” refers to the joint’s inside compartment, which is the compartment closest to the opposing knee. The most typical arthritic deformity is medial knee joint degeneration.
The following factors may include:
Similar to every surgical procedure, knee replacement surgery has risks. They include the following:
An operation to partially replace the knee removes bone and diseased tissue from the knee joint. It is performed when only a little portion of the knee is affected by arthritis. An artificial implant, or prosthesis, is used to replace the missing tissue. There is a shorter recovery period for partial knee replacements because they are often performed with smaller incisions.
All medications, including herbal remedies, dietary supplements, and over-the-counter medications should be disclosed to the healthcare provider.
The following should be prepared prior to the surgery.
The patient will get anesthesia, or pain-blocking medication, prior to surgery. One of two anesthetic kinds will be used:
The day after surgery, the patient can begin moving their knee. Compared to total knee replacement, their knee function should return quickly and with less discomfort. While they are in the hospital and for two to four weeks after discharge, they will work with a physical therapist to mobilize the knee. No later than one or two days following surgery, the patient is typically discharged.
In around six to eight weeks, the patient should be able to resume all activities. Due of the replacement’s possible deteriorating bearing surface, impact exercises or jogging/running may not be advised. Sports like skiing, tennis, and other athletic pursuits are acceptable. To enable them to resume their favorite pastimes, of course, partial knee replacement is even being thought about.
Some people may experience positive outcomes after a partial knee replacement. The patient might eventually require a full knee replacement since the irreplaceable portion of the knee can still deteriorate. Up to ten years following surgery, partial inside or outside replacement offers good results.
As opposed to partial inside or outside replacements, partial patella or patellofemoral replacements do not have as favorable long-term outcomes. The patient should inquire with their doctor about their success rate for their disease as well as whether they are a candidate for a partial knee replacement.
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