Because of your pain and recovery period, it will take a while for you to get back in good physical condition. Physical therapy is designed to help you achieve a restoration to your original health levels before the injury, illness, or surgery.
The therapists know the right movements you need, as well as the exercises, to restore that limb and body to a functional state. They are highly trained, and they also work closely with doctors to ensure appropriate movement. This ensures safety and a faster recovery period.
In some cases, physical therapy may be one way you can avoid surgery. If therapy can be used to make you mobile and functional again, then you will likely not need any surgery. Some of the pain may be caused by muscles that need stretching and to be re-strengthened.