Patellofemoral disorders can be divided into those that primarily cause pain and those that cause instability. Lateral tracking, malalignment, and a tight lateral retinaculum are anatomic factors that can increase joint reactive forces resulting in pain and chondral damage. Patella alta, trochlear dysplasia, lateral tracking vector, and MPFL deficiency can be associated with patella instability. Tibia tubercle osteotomy can be used to treat pain and instability in cases that demonstrate malalignment and a lateral tracking vector. This chapter will define indications for tibia tubercle transfer, review anatomic and biomechanical factors associated with the technique, and highlight important technical considerations.