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Unicompartmental Knee Replacement

Common Unicompartmental Knee Replacement Questions or FAQs & Answer

What is Unicompartmental Knee Replacement?

Unicompartmental knee replacement (UKR) is a surgical procedure that is used to treat arthritis in one compartment of the knee. Unlike a total knee replacement, which replaces the entire knee joint, a UKR only replaces the damaged compartment of the knee.

  • During the procedure, the damaged cartilage and bone are removed from the knee joint and replaced with metal and plastic components.
  • These components are designed to mimic the movement and function of a healthy knee joint.
  • UKR is typically recommended for people who have arthritis in only one compartment of the knee, such as the inner or outer compartment.
  • It is also typically recommended for people who have less severe arthritis, as well as for older adults who may not be candidates for a total knee replacement.

UKR offers a number of potential benefits over a total knee replacement, such as:

  • faster recovery time
  • less pain
  • less blood loss
  • smaller incision
  • improved range of motion
  • less bone removal
  • lower risk of complications

However, it's worth noting that UKR may not be suitable for everyone and it is important to discuss with a medical professional the best option for each specific case.

How long does a unicompartmental knee replacement last?

The lifespan of a unicompartmental knee replacement (UKR) can vary depending on a number of factors, such as the patient's age, weight, activity level, and overall health. However, on average, a UKR can last for 15-20 years.

  • It's important to note that UKR is not suitable for everyone, and it is important to discuss with a medical professional the best option for each specific case.
  • Factors such as severe arthritis, high body mass index, and certain medical conditions may make a person a better candidate for a total knee replacement.
  • Like any joint replacement, UKR does have a risk of wearing out or loosening over time, and revision surgery may be necessary if this occurs.
  • Regular follow-up appointments with the orthopedic surgeon and physical therapy are important to monitor the knee and to ensure optimal function and longevity of the implant.
  • It's also important to note that a patient's compliance with post-operative guidelines, like weight management, avoiding high-impact activities, and taking medications as prescribed, can significantly impact the longevity of the implant.

What are the advantages of unicompartmental knee arthroplasty?

Unicompartmental knee arthroplasty (UKA), also known as unicompartmental knee replacement (UKR), is a surgical procedure that is used to treat arthritis in one compartment of the knee. Unlike a total knee replacement, which replaces the entire knee joint, a UKA only replaces the damaged compartment of the knee.

UKA offers a number of potential advantages over a total knee replacement, such as:

  • Less invasive: UKA is less invasive than a total knee replacement, with a smaller incision and less bone removal. This can result in less pain and a faster recovery time.
  • Improved range of motion: UKA can help improve the range of motion of the knee, as it preserves the healthy compartments of the knee.
  • Lower risk of complications: UKA has a lower risk of complications such as infection, blood clots, and knee stiffness compared to total knee replacement.
  • Better for younger and more active patients: UKA may be a better option for younger and more active patients, as it allows them to maintain more natural knee function and potentially resume high-impact activities.
  • Long lasting: UKA has a good longevity, with an average lifespan of 15-20 years.
  • Cost-effective: UKA is a cost-effective option compared to total knee replacement as it requires less surgical time and less implant material.

It's worth noting that UKA may not be suitable for everyone, and it is important to discuss with a medical professional about the best option for each specific case. Factors such as severe arthritis, high body mass index, and certain medical conditions may make a person a better candidate for a total knee replacement.




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