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Views: 0 Author: Site Editor Publish Time: 2026-04-16 Origin: Site
Knee arthroplasty, commonly known as knee replacement, is a surgical procedure to resurface a knee damaged by arthritis. Metal and plastic parts are used to cap the ends of the bones that form the knee joint, along with the kneecap.
Depending on the extent of the damage, your surgeon may recommend one of the following:
Total Knee Arthroplasty, commonly referred to as total knee replacement, is the most widely performed knee replacement surgery.
In this procedure, the surgeon replaces the entire knee joint with prosthetic components.
The surgery usually involves:
Removing damaged cartilage and bone from the femur and tibia
Resurfacing the patella if necessary
Implanting metal and polyethylene prosthetic components
These components work together to restore knee alignment and smooth movement.
Unicompartmental Knee Arthroplasty (UKA), also known as partial knee replacement, is a less invasive procedure performed when damage occurs in only one compartment of the knee.
The knee joint consists of three compartments:
Medial compartment
Lateral compartment
Patellofemoral compartment
If arthritis affects only one area, surgeons can replace only that compartment while preserving the rest of the natural knee.
Unlike general UKA, PFA specifically treats the patellofemoral compartment. It replaces only the under-surface of the kneecap and the groove of the femur. It is ideal for patients whose arthritis is strictly limited to the front of the knee.
Doctors usually recommend knee arthroplasty when conservative treatments are no longer effective.
Common indications include:
Osteoarthritis
Rheumatoid arthritis
Post-traumatic arthritis
Knee deformity
Chronic pain that limits daily activities
Patients who have difficulty walking, climbing stairs, or performing normal daily movements may benefit significantly from knee replacement surgery.
Recovery after knee arthroplasty varies depending on the procedure and the patient's health condition.
Typical recovery stages include:
Standing and walking with assistance within 1–2 days
Physical therapy starting shortly after surgery
Resuming daily activities within 4–6 weeks
Full recovery within several months
Rehabilitation and strengthening exercises are essential for achieving the best results after surgery.
Knee arthroplasty, whether it is Total Knee Arthroplasty (TKA), Unicompartmental Knee Arthroplasty (UKA), or Patellofemoral Arthroplasty (PFA), remains one of the most successful interventions in modern orthopedics. By selecting the right procedure for the specific degree of joint damage, patients can effectively eliminate chronic pain and regain an active lifestyle.
