Xcelerate Specialty Patella Milling System Per File K2399; Catalog Number I-K2399PR00, I-K2399PR10; Stryker Howmedica Osteonics, Howmedica Osteonics Corp., 325 Corporate Drive, Mahwah, NJ 07430 || The Xcelerate patella milling system (as detailed in surgical protocol LSPK35) was designed to prepare a patella to accept all Scorpio or Duracon patellar implants using either a resurfacing or recessed technique.