Surgeons use interdiscal electrothermal therapy (IDET) to treat sore discs without harming the surrounding tissues. Because the muscles and joints stay intact, you shouldn't lose strength in your spine. Scientists have done studies to see whether the spine weakens after a surgery like this. So far, the results suggest that spines have the same strength after IDET. You should still make sure to do the exercises your doctor prescribes after surgery. Your rehabilitation program is planned to maximize the health and strength of your back and help you avoid future problems.