Unicompartmental Knee Replacement
What is Unicompartmental Knee Replacement?
The knee can be divided into three compartments: patellofemoral, the compartment in front of the knee between the kneecap and thighbone, medial compartment, on the inside portion of the knee, and lateral compartment which is the area on the outside portion of the knee joint.
Indications of Unicompartmental Knee Replacement
Surgical Procedure of Unicompartmental Knee Replacement
During the surgery, a small incision is made over the knee to expose the knee joint. Your surgeon will remove only the damaged part of the meniscus and place the implant into the bone by slightly shaping the shinbone and the thighbone. The plastic component is placed into the new prepared area and is secured with bone cement. Now the damaged part of the femur or thighbone is removed to accommodate the new metal component which is fixed in place using bone cement. Once the femoral and tibial components are fixed in proper place the knee is taken through a range of movements. The muscles and tendons are then repaired and the incision is closed.
Postoperative Care Following Unicompartmental Knee Replacement
Risks and Complications Following Surgery for Unicompartmental Knee Replacement
- Knee stiffness
- Blood clots (deep vein thrombosis)
- Nerve and blood vessel damage
- Ligament injuries
- Patella (kneecap) dislocation
- Plastic liner wearing out
- Loosening of the implant
Advantages of Unicompartmental Knee Replacement
- Smaller incision
- Less blood loss
- Quick recovery
- Less post-operative pain
- Better overall range of motion
- Feels more like a natural knee