femur polar moment of inertia femur midshaft polar moment of inertia 2013-06-27T18:08:04Z A calculated geometric property of a cross section of the femoral midshaft, a point midway between the two ends of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds. It is a measure of the distribution of material around a given axis and is related to the inherent rotational stiffness of the bone around that axis. Bone is the hard, rigid form of connective tissue constituting most of the skeleton of vertebrates and composed chiefly of calcium salts. CMO:0001669 JSmith clinical_measurement_ontology femoral midshaft polar moment of inertia femur midshaft Ip femur midshaft area moment of inertia femur midshaft cross-sectional moment of inertia calculated femur midshaft cross-sectional area