OrthoIllinois and OrthoMidwest First in the Region to Use Velys Robotic Technology for Partial Knee Replacements ROCKFORD, Ill. (March 20, 2025) – OrthoIllinois and OrthoMidwest are pleased to announce a historic milestone in orthopedic care with the introduction of a groundbreaking new procedure. Dr. Frank Bohnenkamp and Dr. Mark Oyer are the first surgeons to perform partial knee replacements using the Velys robotic-assisted technology in Illinois and Wisconsin. These procedures were completed at OrthoIllinois Surger