Fig. 2
From: Short knee radiographs can be inadequate for estimating TKA alignment in knees with bowing
Preoperative full-length (14 × 51 in. grid cassette) radiograph showing the measurement of the femoral bowing angle (FBA) and tibial bowing angle (TBA). The FBA was defined as the angle between the line connecting the points bisecting the femur at 0 cm and 5 cm below the lowest portion of the lesser trochanter and the line connecting the points bisecting the femur at 5 cm and 10 cm above the lowest portion of the lateral femoral condyle [23]. The TBA was defined as the angle between the line connecting the points bisecting the tibia at 5 cm and 10 cm from the highest portion of the lateral tibial plateau and the line connecting the points bisecting the tibia at 5 cm and 10 cm from the lowest portion of the tibial plafond [19].