While lower back pain is very common, delayed pain from complications of epidural or spinal anesthesia is quite rare, especially after years without any problems.

CNN: Can C-section anesthetic lead to low back pain?

They came up with a plan for anesthesia based on research studies including giving certain pain medications before the patient entered the operating room and using spinal anesthesia plus an injection of local anesthetic to block the main nerve to the knee.

NEWYORKER: Big Med

Sudden lower back pain years after epidural or spinal anesthesia is more likely to be caused by a recent injury, heavy lifting, poor posture or positioning (such as during sleep or while carrying a backpack), or stress on the bones or muscles.

CNN: Can C-section anesthetic lead to low back pain?