operation ****
surgery ***
surgical operation
surgical procedure
surgical process

One or both of these surgical procedures may be needed.

The operation is the most common surgical procedure among Americans over 65.

As with most other surgical procedures, some cases are more difficult than others.

The new report also includes data on surgical procedures for the first time.

Despite its name, it is not considered a surgical procedure.

The doctor says a simple surgical procedure will take care of it.

How would you like to have a 14-hour surgical procedure and after 8 hours they change doctors?

After a 14-month hospital stay and 17 surgical procedures, however, she was able to return home.

There are several different surgical procedures with reported success rates between 40 to 95%.

More than one type of surgical procedure may be done at the same time.