Hello! I was wondering if bilateral obstructing renal calculi can be an issue after lumbar fusion or if this is just a coincidence? I just had a ct myelogram because I’m one year post op from a l4 l5 fusion and laminectomy and still having problems with my incisions (lumpy, scabby, itchy), lower back pain that radiates to buttock and legs (mostly right but sometimes left) and now the ct just showed bilateral obstructing renal calculi. My esr is high at 33 and my crp is in normal range. Coincidence or do you think I may have something going on from the fusion? Thanks!