Patellar shape: Wiberg classification
Loading Stack -
0 images remaining
Wiberg classification for patellar shape.
Wiberg classification is a system for describing the shape of the patella based mainly on asymmetry between the patellar medial and lateral facet on axial views of the patella.
Type I: the facets are concave, symmetrical, and of equal size.
Type II: the medial facet is smaller than the lateral facet and flat or only slightly convex. The lateral facet is concave.
Type III: the convex medial facet is markedly smaller than the concave lateral facet, and the angle between the medial and lateral facets is nearly 90°.
- Berry. Diagnostic Radiology. Jaypee Brothers Medical Publishers (P) Ltd. ISBN:8180614441.
- Barnett AJ, Gardner RO, Lankester BJ et-al. Magnetic resonance imaging of the patella: a comparison of the morphology of the patella in normal and dysplastic knees. J Bone Joint Surg Br. 2007;89 (6): 761-5.