How is knee replacement surgery performed in a 70-year-old patient?

Knee replacement surgery is a common procedure used to treat knee joint diseases. For 70-year-old elderly patients, the decision to undergo knee replacement surgery should be based on an evaluation of the patient's overall health condition and preoperative assessment. This surgery consists of five main steps, detailed as follows:

1. Anesthesia and surgical preparation

Prior to surgery, local or general anesthesia is administered, and the surgical site is disinfected and covered.

2. Skin incision

The surgeon makes an incision over the patient’s knee, opening the skin to expose the knee joint.

3. Removal of damaged cartilage and bone tissue

The surgeon cuts through muscles and ligaments surrounding the joint, then uses pressurized water or other instruments to thoroughly remove damaged cartilage, old prostheses, and other affected tissues.

4. Implantation of prosthesis

The surgeon implants an artificial joint suitable for the patient into the knee to replace the damaged joint. Prostheses are typically made of plastic and metal materials and can be customized according to individual patient needs.

5. Closing the incision

The surgeon sutures the muscles and ligaments around the joint, followed by closing the skin incision and applying dressings and bandages.

In summary, knee replacement surgery in 70-year-old patients is relatively complex. Therefore, when knee joint damage occurs, it is essential to seek timely medical treatment at a hospital to prevent worsening of the condition.