Objective:To explore the methods for reconstruction and visualization of three-dimensional(3D) models of knee joint.Methods:The MRI thin layer scanning data set of a donor’s right knee joint were used;two-dimensional image data were collected.The 3D models of knee joint including the bones

meniscus

cruciate ligaments and collateral ligaments were reconstructed by using Mimics software.The meniscus and ligaments were measured cross-sectionally and tridimensionally.Results:The 3D models of knee joint were reconstructed successfully based on the MRI images by using Mimics.The model’s morph of the bones and soft tissues were vivid and the anatomy signal was limpid.The models reconstructed could be displayed by different colors and combined randomly.The models could also be viewed in any direction by zooming in

zooming out

rotating and so on.The measured data of knee joint revealed that the sectioned information was the same as the spatial ones.Conclusion:The 3D models of knee joint which look veridical and accurate can not only be reconstructed explicitly by using MRI lamellate images

but also be measured.The reconstructed 3D models of the knee joint are helpful for anatomy teaching and study

and it can also establish the basis for the finite element analysis and virtual reality surgery.