Partial Knee Replacement

Traditional open partial knee replacement surgery similar to that introduced in the early 1970s however, this is a non-cemented system. Immediate fixation is by screws and press fit with permanent fixation provided by actual bone ingrowth to a porous metal backing of the implants. This technique is a precursor to MAKOplasty and replaces only the worn section of your knee thereby preserving normal cartilage, normal meniscus, and the normal anterior and posterior cruciate ligaments. Possible advantages over MAKOplasty includes use of a thicker polyethylene and no potential for cement failure causing loosening. This system may be more appropriate for a young, high demand knee (such as a farmer). Possible disadvantages include a longer recovery since bone ingrowth occurs more slowly over time.

Smith & Nephew Accuris

Traditional open partial knee replacement surgery similar to that introduced in the early 1970s and the precursor to MAKOplasty replaces only the worn section of your knee thereby preserving normal cartilage, normal meniscus, and the normal anterior and posterior cruciate ligaments. This system requires cement for implant fixation

Description of the Procedure

1. Exposure with 3-4 inch incision.
2. The knee joint is properly balanced.
3. The end of the femur and top of the tibia are shaped to accommodate the implants with the unique Accuris instrumentation system.
4. The trial implants are placed to ensure proper fit and alignment.
5. Once properly aligned, the trial components are removed.
6. The femoral and tibial components are implanted.
7. The incision is closed.

Smith & Nephew Journey Deuce

Even if two of the three knee compartments are damaged, there is still an option for partial knee replacement called the Deuce Bicompartmental Knee, being most similar to the Accuris above. This system is a precursor to MAKOplasty. It replaces the medial and patellofemoral compartments. (It cannot be used for the lateral compartment). This is a cemented system. It was introduced in 2006.

Description of the Procedure

The Journey Deuce procedure allows your surgeon to access only this diseased portion of the knee.

1. Exposure with 3-4 inch incision.
2. The knee joint is properly balanced.
3. The patellofemoral and medial compartments are resurfaced to accommodate the implant with the unique Journey Deuce instrumentation system.
4. The trial implants are placed to ensure proper fit and alignment.
5. Once properly aligned, the trial components are removed.
6. The new bi-compartmental device is implanted.
7. The incision is closed.