1. Figure 1. - Right knee joint (articulatio genus).

2. Figure 2. - The PHILIPS AURA CT tomograph

3. Figure 3. - Scanning schemes applied to the femur and tibia

4. Figure 4. - Using a known dimensions bar. Figure 5. - Images obtained in the upper area of the femur.

5. Figure 6. - Images obtained in the medial area of the femur Figure 7. - Two images obtained in the lower area of the femur

6. Figure 8. - Four main images of the upper tibia. Figure 9. - Four main images made in the medial tibia area.

7. Figure 10. - Four significant images scanned in the lower tibia area. Figure 11. - Obtained sections for the femur.

8. Figure 12. - Sections for the tibia bone. Figure 13. - Initial definition parameters for virtual femur.

9. Figure 15. - Definition scheme of tibia virtual model. Figure 14. - The Loft schemes for defining the virtual condiles.

10. Figure 16. - Three views of virtual model of virtual femur. Figure 17. - Three views of virtual model of virtual tibia. Fig.17. Three views of the virtual model of the virtual tibia.