Fig.2 Evaluation of osteophyte formation

A total of 16 sites indicated with circles were assessed for osteophyte formation through 4 directional x-rays ［ (a) anteroposterior, (b) lateral, (c) skyline, (d) tunnel view］

(a) LFC＝lateral femoral condyle; LTP＝lateral tibia plateau; MFC＝medial femoral condyle; MTP＝ medial tibia plateau; TS＝tibial spine

(b) UPP＝upper pole of patella; LPP＝lower pole of patella; PC＝posterior condyle; ATP＝anterior tibia plateau; PTP＝posterior tibia plateau

(c) LP＝lateral patella; MP＝medial patella; LPF＝ lateral facet of the patellofemoral joint; MPF＝ medial facet of the patellofemoral joint

(d) MIC＝medial intra-condylar notch of the femur; LIC＝lateral intra-condylar notch of the femur