Patellar height and posterior tibial slope after open- and closed-wedge high tibial osteotomy: a radiological study on 100 patients.

Background: Valgus high tibial osteotomy (HTO) may be associated with changes in the patellar height and posterior tibial slope.

Hypothesis: Patellar height increases and posterior tibial slope decreases after closed-wedge HTO, whereas patellar height decreases and tibial slope increases after open-wedge osteotomy.

Study Design: Cohort study; Level of evidence, 3.