- Secondary force component is the horizontal, or nonrotary component and is either a stabilizing component or a dislocating component, depending on whether the angle of pull is less than or greater than 90 degrees.
• If angle is less than 90 degrees, the force is a stabilizing force because its pull directs the bone toward the joint axis.
• If angle is greater than 90 degrees, the force is dislocating due to its pull directing the bone away from the joint axis.