Postoperative backache.
D000758:Anesthesia; D000768:Anesthesia, General / Q000150:complications*; D000775:Anesthesia, Spinal / Q000150:complications*; D000776:Anesthesiology; D001416:Back Pain / Q000209:etiology*; D006801:Humans
ANESTHESIA, GENERAL/complications; ANESTHESIA, SPINAL/complications; BACKACHE/etiology