Seeing your filial piety moved me. Based on my estimation, I'd like to give you a suggestion: take an X-ray of lumbar spine to see if there is hyperosteogeny. Because if there is lumbar hyperosteogeny, it may compress the sciatic nerve, causing pain in one hip joint or lower limb; If this is not the case, we should do further examination to see what "a band-shaped high-density shadow extending from the right sciatic bone to the obturator foramen" is. Take the medicine after the diagnosis is clear. Your mother is only taking anti-inflammatory painkillers, which is symptomatic medicine, taking temporary solution instead of permanent cure.