The group of Prof E. Vignon (Lyon, France) has developed tools to evaluate standard radiographs of the osteoarthritic hip, Holy, an internationally accepted way of detailed evaluation of these radiographs. Because of their expertise in this specific field and their past performance with this method in the international literature, evaluation of hip radiographs taken in our studies is performed by our researchers in Lyon using their program. It is always a warm welcome in the typically French ambiance: On nous prépare toujours un accueil chaleureux dans une ambiance typiquement française!