Role of Computer in Osteotomies Around the Knee M. Karimpour PhD 2D vs 3D Pre-Planned Distal Femoral Osteotomy Plate Contouring Outside the OR Complex Tibial Deformity Complex Tibial Deformity A patient specific surgical guide was designed based on a virtual osteotomy. Complex Tibial Deformity Final Words Computer assisted pre-planned osteotomies can significantly help the surgeon in finding the best correction for a given complex deformity 3D printed patient specific bone models have been proven to help the surgeon better visualise the deformity as well as the correction method prior to making the incision Patient specific surgical guides ensure that the correction is in fact performed in accordance to the planning. It can also reduce the surgery time As with any new method, patient selection is crucial, and more complex deformities, particularly those involving rotational deformities are better candidates for this method