After lumbar spinal stenosis surgery, under normal circumstances, the physical strength can return to normal after about 3~6 months, the exact time varies from person to person. Lumbar spinal stenosis surgery, more often taken to enlarge the spinal canal pedicle screw fixation surgery, the operation is mainly to enlarge the narrowed area of the spinal canal, at the same time on the pedicle screws, to be able to restore the stability of the spinal column. During the operation, bone is also implanted in the adjacent vertebral body where the internal fixation is performed to increase the stability of the spine. After the surgery, if you pay special attention to your body, your strength will return to normal about three months after the surgery. However, if you do not take care of your body after the surgery, or due to factors such as poor underlying conditions or excess weight, it will take longer to return to normal strength, perhaps six months or more. After lumbar spinal stenosis surgery, you will need to go to the hospital for regular checkups to see how your condition is recovering.