The doctor who performs orthopedics on patients is one of the most important people in the hospital.
But for those with a rare genetic disorder, their work could save lives.
So why should we care?
Read MoreAbout our expert: Dr. Michael KuglerDr.
Kuglar, who is in his 70s, is a world-renowned orthopedist who is one half of the family that has operated on hundreds of thousands of patients.
He has had over a dozen bone graft operations.
He was a professor of orthopedical surgery at the University of California, San Francisco, and is now a member of the American College of Surgeons.
Dr. Michael was honored in 2013 by the U.S. Senate with the Congressional Gold Medal for Outstanding Contributions to Orthopedics.
He is the director of the Medical Research Foundation at the Cleveland Clinic.
He writes the Orthopedic Anatomy column for The Huffington Post and the Mayo Clinic Journal.
Read Moreabout Dr. Kogler: