In most modern operating rooms, the technology to measure oxygenation in the blood has improved to the point where clear fingernails are no longer necessary. Finger pads, toes, and earlobes can be used for this measurement. Consult with your surgeon and anesthesiologist prior to surgery for their preferences.
Thanks for posting. You should be fine, as long as your anesthesia doctor can put the oxygen monitor on your ear lobe or your toe. Best to ask them. The monitor doesn't function when special nails are in place.