Friday, May 8th, 2026
An orthopedic total joint knee replacement is not a hinge.It bends, rolls, glides and rotates. It bears the force of walking, climbing stairs, rising from a chair and living an active life. It has to mimic naturally enough to restore function, but remain stable enough to last. Its materials must survive millions of cycles inside the body, where the smallest design decisions can affect wear, inflammation, bone loss, loosening and pain.That was the kind of problem Michael J. Pappas ’59, ’64 helped solve.