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Fig. 1 | Insights into Imaging

Fig. 1

From: Patellar maltracking: an update on the diagnosis and treatment strategies

Fig. 1

Trochlear depth assessment. Axial PDFS left knee MR image, demonstrating the method used for the measurement of trochlear depth. First, a line is drawn paralleling the posterior femoral condyles surfaces. Perpendicular to this baseline, trochlear depth is calculated by measuring the mean of the maximum AP distance of the medial (a) and lateral (b) femoral condyles minus the distance between the deepest point of the trochlear groove and the line paralleling the posterior condylar surfaces (c). Trochlear depth = [(a + b)/2] − c

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