How do they a poly exchange in total knee replacement?

Polyethylene exchange (PEE) is a surgical procedure in which the plastic liner (polyethylene) of a total knee replacement (TKR) is replaced. This may be necessary due to wear and tear of the liner, which can cause pain, swelling, and stiffness.

PEE is typically performed as an outpatient procedure, meaning that patients can go home the same day. The surgery is done through a small incision over the knee, and the old liner is removed and replaced with a new one. The incision is then closed with sutures or staples.

PEE is a relatively simple procedure, but it does carry some risks, including:

* Infection

* Bleeding

* Blood clots

* Nerve damage

* Failure of the new liner

The success of PEE depends on a number of factors, including the patient's overall health, the condition of the knee joint, and the skill of the surgeon. However, PEE is generally a safe and effective procedure that can relieve pain and improve function in patients who have experienced wear and tear of the polyethylene liner in their TKR.

Here are the steps involved in a poly exchange in total knee replacement:

1. The patient is given anesthesia.

2. The knee is shaved and cleaned.

3. A small incision is made over the knee.

4. The old liner is removed.

5. The new liner is inserted.

6. The incision is closed with sutures or staples.

7. The patient is taken to the recovery room.

Recovery from PEE typically takes several weeks. During this time, patients may experience some pain, swelling, and stiffness. They will also need to use crutches or a walker to assist with walking. Physical therapy will be necessary to help patients regain their range of motion and strength.

Most patients are able to return to their normal activities within a few months of PEE.