A bone scan is a nuclear imaging procedure. In nuclear imaging, tiny amounts of radioactive materials (tracers) are injected into a vein and taken up in varying amounts at different sites in the body.Areas of the body where cells and tissues are repairing themselves most actively take up the largest amounts of tracer. bone scan is a nuclear imaging procedure. In nuclear imaging, tiny amounts of radioactive materials (tracers) are injected into a vein and taken up in varying amounts at different sites in the body.
Leg Lift Exercise For Stiff Knee. 1  Lie On Your Back: Keep one knee raised with heel on the floor. Keep the other leg straight and raise it to a comfortable level. 2  Sit on a chair: Raise your leg to straighten the knee, hold and bring it down.
Experts agree: Exercise is good for your knees, especially if you have bad ones. The best way to avoid and recover from knee injury is to keep the muscles and ligaments surrounding your body's largest joint strong and flexible. Some exercises, however, do more harm than good. If you have bad knees, be careful about the exercises you choose.