Fig. 4From: Postoperative change in patellofemoral alignment following closing-wedge distal femoral osteotomy performed for valgus osteoarthritic kneesRepresentative case of changes in total leg length and patellar congruity before and after surgery. a Preoperative in a 53-year-old female; the patient is presented with a valgus knee with mechanical lateral distal femoral angle (mLDFA) 82.5° and mechanical femoral angle (mFA)-mechanical tibial angle (mTA) 14.6°. Lateral patellar tilt (LPT) was 4.0° and lateral patellar shift (LPS) was 7.8%. b Postoperative; the mLDFA and mFA-mTA changed to 91.9° and -2.1°, respectively. LPT remained unchanged at 4.0° and the LPS was 11.1%. FSA femoral shift axis, JLCA joint line conversion angle, mLDTA mechanical lateral distal tibial angle, mLPFA mechanical lateral proximal femoral angle, mMPTA mechanical medial proximal tibial angleBack to article page