Quantitative shape-function modeling of the forearm in medical imaging

We present a preliminary quantitative approach to analyzing how 3D shapes match in order to better evaluate how such a coupling impacts on a functional motion. Addressing long bone morphometry, we study the influence of the 3D shape of forearm bone structures on the limitation of rotational range during pronation-supination motion. On the basis of modeling at successive stages-shape, motion, and deformation-, simulation here confirms the assumption that shape parameters are naturally optimal within a given non-pathological forearm. In addition, as regards this particular bone-joint subsystem, the restriction to only bones is questioned while the need to focus on shaft portions is supported. Consequently, the suggestion to investigate on the interosseous ligament in particular is made.