Fig. 7From: Updated treatment guidelines for patellar instability: “un menu à la carte”Three goals of the deepening trochleoplasty: 1) Deepen the trochlea. 2) Reduce the supratrochlear spur and make the trochlea flushes with the femoral anterior cortex. 3) Proximal realignment with the new groove aligned with the anatomical femoral axisBack to article page