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Figure 3 | BMC Musculoskeletal Disorders

Figure 3

From: Tibiofemoral and patellofemoral joint 3D-kinematics in patients with posterior cruciate ligament deficiency compared to healthy volunteers

Figure 3

Patella-based coordinate system. a) (Sagittal view): C: Center of Patella; Py: y-axis of patella; T: x-axis of tibia plateau; F: longitudinal axis of the femur; IPP inferior patella pole. Patellar height: distance between IPP and T. Patello-femoral angle: Angle between Py and F. b) (Transversal view) Pmin1 and Pmin2: Shortest distances of the sulcus to the y-z-plane (x=0); Pmax: Largest distance of the patella sulcus to the y-z-plane (x=0). Tilt angle: Angle between line Pmin1 - Pmin2 and Px (x-axis of patella). Patellar shift: Displacement between C and Pmax, projected on T.

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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