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Fig. 2 | Knee Surgery & Related Research

Fig. 2

From: Imaging evaluation of patellofemoral joint instability: a review

Fig. 2

Fat-saturated proton density-weighted magnetic resonance images demonstrating the measurements of the indices to assess trochlear dysplasia. a Sulcus angle (∠θ) and trochlear facet asymmetry (MF/LF). b Lateral trochlear inclination (∠θ). c Trochlear groove depth ((MF + LF)/2–TG) (An alternative method is presented by the dashed line). d Ventral trochlear prominence (length T)

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