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.
Then slide down until you're almost to the point of sitting in a chair, but not quite. Then slide back up. It is important to make sure the knee never goes past the foot. Light leg presses, hamstring curls and leg extensions are also beneficial exercises for improving bad knees.