Knee
AP IR Size: 10x12 Tbl Bky SID: 40'' Page #'s: 1:296,102	Positioning:   • Pt. Supine with Leg Extended   • No Pelvis Rotation	CR Entrance & Angle:   • 1/2'' inferior to patellar apex.   • (ASIS to TT (<19cm 3°-5° caudad, 19-24cm-0° >24cm 3°-5° cephalad) Collimation:   • leave at 12'' Respiration:   •	Anatomy to IR:   • || Femoral Condyles Eval Criteria:   • Open femerotibial joint with equal interspace on both sides if normal   • Slight SI fibular head on tibia   • Knee fully extended permitting   • SI of complete patella on femur   • NR semmetric femoral condyles and intercondylar eminence of tibia centered
Lateral (ML) IR Size: 10x12 Tbl Bky SID: 40'' Page #'s: 1:300,106	Positioning:   • Pt lateral position on affected   • Knee flexed 20°-30° (for max open joint) (Fx suspected no more than 10°)   • (leg in front of affected)	CR Entrance & Angle:   • 1'' distal to medial epicondyle   • 5°-7° cephalad Collimation:   • leave 10x12 Respiration:   •	Anatomy to IR:   • _|_ Patella & Epicondyles Eval Criteria:   • SI of femoral condyles (adductor tubercle on posterior surface of medial condyle used to determin over/under rotation)   • Slight SI fibular head on tibia (overrotation less SI, under more SI)   • Open knee joint and patellofemoral joint spaces with patella in lateral profile   • Knee flexed 20-30°
AP Oblique (Lateral Rotation) IR Size: 10x12 Tbl Bky SID: 40'' Page #'s: 1:304,108	Positioning:   • Pt. Supine with Leg Extended   • Leg rotated 45° laterally	CR Entrance & Angle:   • 1/2'' inferior to patellar apex.   • (ASIS to TT (<19cm 3°-5° caudad, 19-24cm-0° >24cm 3°-5° cephalad) Collimation:   • leave at 12'' Respiration:   •	Anatomy to IR:   • Eval Criteria:   • Fibula SI over laterale of tibia.   • Patellar margin just beyond lateral femoral condyle
AP Oblique (Medial Rotation) IR Size: 10x12 Tbl Bky SID: 40'' Page #'s: 1:305,110	Positioning:   • Pt. Supine with Leg Extended   • Leg rotated 45° Medially	CR Entrance & Angle:   • 1/2'' inferior to patellar apex.   • (ASIS to TT (<19cm 3°-5° caudad, 19-24cm-0° >24cm 3°-5° cephalad) Collimation:   • leave at 12'' Respiration:   • Best to Determine:   • Proximal Tibiofibular Joint in Profile	Anatomy to IR:   • Eval Criteria:   • Patellar margin just beyond medial femoral condyle   • Open tibiofibular joint and knee joint   • Both tibial plateaus