The meeting is opened by M. Jean Ple who introduces our proprietary HipPLAN software as a concept that has led to the design and manufacture of over 20,000 Custom hips since 1989. In 2017, the keenly anticipated 20 year results from Professor Jean Noel Argenson’s original 200 plus patient cohort will be published. Professor Hedi Saraiali then takes up the argument for 3D planning as a means of restoring the biomechanics of the hip by re- creating the hip rotation centre in a wide variety of patient morphotypes, with for example, femoral ante- version ranging from zero to 50 degrees, and the effect of this version on global hip offset. Is there is risk in standardising with 15 degrees of offset, inter operatively, in ones general surgical practise? Other factors such as edge loading and bone density are key factors in implant selection,  as is an appreciation that patients do not tolerate post operative leg lengthening. Professor Sariali then presents his own prospective observational series of 610 cases carried out between 2008 and 2014, for primary osteoarthritis, through a Direct Anterior Approach with traction table, all 3D CT planned using HipPLAN® Symbios pre- operative panning software. In 72 cases (12%), a Custom implant was indicated. Professor Sariali then takes us into ‘WORKSHOP’ mode and very elegantly plans with increasing complexity, 3 hips with varying anatomic/ morphological deformity, aptly demonstrating the power and scope of HipPLAN®. The take home message from the first session of the day is that 3D CT planning becomes mandatory at a certain level of reconstructive complexity.


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