shearing force will produce a fracture parallel to the direction of the applied force and can lead to angular limb deformity if left untreated. Bone is weakest under shear stress making fractures of this nature common even with minimal trauma. Example: An immature miniature breed dog is dropped from its owner's arms to a hard surface. The force transmitted up the radius and ulna, across the elbow joint and into the distal humerus will shear off the lateral humeral condyle.