Kinematic analysis computes the motion constraints imposed by bone contacts.
We are developing a fast algorithm for joints with approximately planar motion. The modeling requirements are to reconstruct the bone contours from the clinical data, to separate the bones in a joint, and to construct planar slices parallel to the motion plane. We discuss only the knee, since modeling the wrist and other joints poses analogous problems. Figure 3 shows a solid model of a knee reconstructed from CT images of the visible male. Kinematic analysis of the knee is difficult.