Navigation and Hip Surgery

  • Philippe Merloz
Part of the European Instructional Lectures book series (EICL, volume 12)


Seven main technologies are used for Computer-Aided Hip Surgery. For Total Hip Arthroplasty and Hip Resurfacing, image-free navigation systems are used in more than 90% of the cases. Total Hip Arthtroplasty navigation is used to improve acetabular component positioning and allow a reduction of outliers in anatomical axis (inclination and anteversion) of the acetabular component as compared to conventional techniques. In this domain, two concepts have been developed to achieve the objectives of accuracy: anatomical and functional navigation. Navigation for revision Total Hip Arthtroplasty is limited to positioning of the acetabulum. Nervertheless cup mal-alignment remains the great problem in Total Hip Arthtroplasty and to increase accuracy in cup positioning, we still have to define the right position of the pelvis/acetabulum in several daily living activities. Navigation is useful to increase accurate placement of the femoral component in Hip Resurfacing. Custom-made stems adapted to the femoral anatomy should be reserved for severe dysplastic cases. Peri-Acetabular Osteotomies, Peri-Acetabular Trauma and treatment of Femoro-Acetabular Impingement are complex procedures and require the use of a rather sophisticated technical environment based on 3D-CT images, 3D reconstruction, 3D planning, templating and/or 3D navigation. At the present, we have no information on long term follow-up (PE wear, longevity etc.…).


Navigation System Femoral Component Acetabular Component Pelvic Tilt Rapid Prototype Technology 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© EFORT 2012

Authors and Affiliations

  1. 1.Department of Orthopaedic and Trauma SurgeryCHU A. MichallonGrenoble Cedex 09France

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