Fig 1.
Global workflow overview to generate patient-specific orthopaedic implants.
Fig 2.
Femoral and tibial landmarks acquired for the morphometric analysis validation.
The condyles centers were determined from 5 points acquired on the edge of the lateral and medial plateau (blue lines).
Fig 3.
Design steps for the personalised prosthesis.
(top) Femoral implant, from left to right: defining the medial pivot sphere; defining the condyles’ curvature; defining the anterior surface; cutting the intercondylar notch; adding pins and chamfers. (bottom) Tibial implant, from left to right: tibial baseplate contouring; adding locking mechanism for the polyethylene insert; adding the keel; adding chamfers.
Fig 4.
Flattened contours used for over and under-hang computation.
The red and blue lines represent bone resection and implant contours respectively. Grey zones are ignored in the computation.
Table 1.
Segmentation accuracy.
Table 2.
Tibia and femur SSMs metrics, regarding the number of modes (N).
Table 3.
Full bone reconstruction accuracy.
Table 4.
Accuracy of the morphological parameters automatic determination.
Fig 5.
Example of personalised implants designed for two patients.
Frontal, sagittal and posterior views.
Table 5.
Bone coverage for custom design implants (over and under hang).