For patients experiencing discomfort in both knees, the option of simultaneous bilateral knee replacement surgery is available. The primary advantage of this approach is that the patient addresses both issues with a single surgical procedure, thereby undergoing a single recovery period and experiencing less surgical stress. If simultaneous surgery is not deemed appropriate, it is generally recommended to wait at least 3 months between unilateral knee replacement surgeries.

However, specific criteria must be met for simultaneous bilateral knee replacement surgery:
* It is typically performed on patients under the age of 70.
* It is preferred for individuals with an appropriate body mass index (not experiencing weight issues) and no severe concomitant diseases.

The recovery process following bilateral knee replacement surgery does not significantly differ from that of unilateral knee replacement surgery. However, particularly for overweight patients, it may take 2-3 days to comfortably perform certain movements, such as climbing stairs. Generally, the aim is for patients to experience a comfortable and effective recovery process.