THE CORAIL HIP SYSTEM: History.- Basic Science.- The CORAIL Hip System.- CORAIL Outcomes.- The CORAIL Familiy.- Revision. APPROACHES. BEARINGS. CUPS: Approaches (MIS).- Acetabulum (TAL).- Bearings.- Cup Options (press-fit, threaded).- Navigation. PATIENT MANAGEMENT: Post-op Management.- Medico-economic Considerations.- Case Studies. THE NEXT 25 YEARS: Results of the \"Faculty\'s Series\"(25 patients in 25 centers).- Perspective.- Conclusion.