During planning of total hip arthroplasty, suitable parameters for implant size and alignment are determined based on certain criteria such as bony anatomy fit and leg length equality. More complex criteria, for instance a sufficient range of motion and adequate resulting hip forces, are not systematically planned and are only considered by the surgeon’s experience. During surgery, the parameters might need to be adapted due to intra-operative findings that might have an effect on the overall result. We develop a framework that automatically calculates an optimized set of implant and implantation parameters. This set of parameters is patient-specific and based on all relevant criteria derived from literature in order to provide an intraoperative decision support system for the analysis of effects if certain parameters are changed.