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. 2019 Feb 7;20:53. doi: 10.1186/s12891-019-2439-x

Fig. 4.

Fig. 4

A representative computed tomography image showing the three medial patellofemoral ligament femoral tunnel entry points established using different localization methods. The grey circle represents the center of the native medial patellofemoral ligament attachment in a cadaveric knee. The black, red, green circles represent the centers of the femoral tunnel entry points established by the sulcus, fluoroscopic, and midpoint localization methods, respectively