Fractured (broken) bones will generally heal within six weeks of injury. But that is only half of the problem. Unfortunately, when you have enough stress placed through your body to fracture a bone there’s usually a lot of other soft tissues and structures that have been damaged in the process as well.
Add to that the common use of immobilization in a plaster of paris, you’ll have joint stiffness and considerable muscle weakness. This may even affect joints that don’t seem related to break. For example, a fractured clavicle bone may result, elbow joint because you have been asked to keep your arm in a shoulder sling for 3-4 weeks.