Patellaosteotomie kombiniert mit modifizierter Trochleaplastik und Tuberositasmedialisierung als Therapie der permanenten Patellaluxation in Beugung

Patellar dislocations in flexion, which occurs permanently with every movement, is the most serious manifestation of patellofemoral malalignment. Surgical approaches to correct this problem have been mostly unsuccessful. In a new therapeutic approach, the concave posterior surface of the patella, which slides on the hypoplastic lateral condyle as if guided by splints, is seen as the main pathology. The appropriate surgical strategy is trochleoplasty, combined with closed wedge patellar osteotomy, tuberosity medialisation, procedure for lengthening lateral retinaculum and MPFL plasty with the quadriceps tendon. In the case of a 13-year-old female patient presented here, this procedure leads to permanent stability in a symptom-free knee joint on both sides.