Abstract
The anterior approach to the hip, initially described by Hueter, has been modified and used by Jean and Robert Judet since 1947 for fixing an acrylic prosthesis [1,2]. In 1993, Marc Siguier rendered this approach completely mini-invasive by avoiding any muscular desinsertion or sectioning of tendons [3]. When we learnt about the possibilities of using the navigation technique for a hip prosthesis using the Orthopilot system, we decided to combine these two innovations so as to induce a minimum of aggression and a maximum of security while fixing a hip prosthesis. A study carried out on the positioning of the acetabulum, with or without navigation, as well as a comparison between two navigation systems are mentioned in an attempt to validate the relevance of the frame of references.
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