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Fig. 1 | Arthritis Research & Therapy

Fig. 1

From: Associations between the morphological parameters of proximal tibiofibular joint (PTFJ) and changes in tibiofemoral joint structures in patients with knee osteoarthritis

Fig. 1

Measures of proximal tibiofibular joint (PTFJ) morphological parameters. A T1-weighted coronal MRI slices of the knee. Point c is the outermost point of the fibular articular surface, and a is the innermost point of the articular surface in PTFJ. e is the lateral vertex of the tibial plateau, and f is the medial vertex of the tibial plateau. Line oa is drawn through a, which is parallel to line ef. The length of ac and the angle oac (α) are measured in each slice of MRI. B Sagittal fat-suppressed T1-weighted 3D gradient-echo MRI. Point b is the lowest point of the fibular articular surface, and c is the highest point of the fibular articular surface in PTFJ. e and f are points that connect the anterior and posterior horns of the lateral meniscus with the tibial plateau, respectively, and line ef is parallel to the tibial plateau. Line ob is drawn through b and is parallel to ef. The length between bc and the angle of obc (β) are then measured in each slice of MRI

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Arthritis Research & Therapy

ISSN: 1478-6362

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