An in-situ surgical orthopedic milling apparatus includes an instrument frame having upper and lower end portions. A plurality of templates are provided, each forming a respective virtual pattern. A cutting device supported upon the frame cuts bone tissue (e.g., within the intramedullary canal of a patient's...http://www.google.es/patents/US5534005?utm_source=gb-gplus-sharePatente US5534005 - Surgical milling system