Eliasberg CD, Hancock KJ, Swartwout E, et al. - This study was attempted to assess the effect of hinge axis position on the posterior tibial slope (PTS) in medial opening wedge high tibial osteotomy. Researchers included adults with medial compartment osteoarthritis who had CT scans available that were amenable to Bodycad Osteotomy software analysis. They conducted virtual osteotomies modeling a 10 mm medial opening wedge gap. They used CT scans from ten patients. The results indicated that whereas proximalization/extension and internal rotation led to decreases in PTS, distalization/flexion and external rotation of the hinge axis position led to stepwise increases in PTS.