The “à la carte” surgical strategy for treating patellar instability developed in Lyon, France, is well known. The corrective procedures are planned based on a preoperative analysis of the morphological abnormalities. Among factors responsible for patellofemoral incongruity, patellar dysplasia is among the most challenging to correct. We report a case of habitual patellar dislocation with severe patellar dysplasia that required a complex surgical strategy including patellar lateral closing-wedge osteotomy to improve patellofemoral congruity. This treatment was effective in ensuring stability and function. This complementary technical procedure can be useful in some patients with major patellofemoral instability.