Is it safe for a 70 year old woman to go under full anesthesia during knee replacement surgery?

We just had a 93 year old woman have a total knee replacement without incident. She is now in rehab& doing well. It's important to have a preop consultation by her physician and this includes an EKG and lab work,urine culture and possibly a chest x-ray. The anesthesiologist will also meet with the patient. This provides the best care for your patient.

The chronological age of a patient is not as important as the physiologic age & medical state of the patient when anesthesia is considered. Some 40-50 year olds with diabetes or heart or lung disease would be at higher risk than healthy 70-80 year olds. The operating Dr & anesthesiologist should carefully evaluate the patient’s risk prior to the surgery

In general, it is safe and common. But as previously mentioned, the safety of anesthesia is based mostly on the health of the patient. Medical optimization and discussion with the anesthesiologist is worthwhile, prior to surgery. There are also other options for anesthesia for knee replacement, like spinal or epidural, which has their own benefits and disadvantages. Perhaps worth a discussion