@annie1 yes I have just had an ALIF L4/5 . I also have osteoporosis -4.2 L3. Op went well had a stand alone cage with two screws. I am four months post op now. I am 75 and female. Small bones. I also suffer chronic fatigue do my recovery is very slow and depressing so far. My problem was always sacroiliac dysfunction either nerve pain and that has been worsened by the extra load from the stretching of the spine. It’s an individual decision so all I can say is do not go into it lightly . Try everything else first.