RT Journal Article SR Electronic T1 Intrathecal Morphine for Postoperative Pain Relief JF Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 1 OP 3 DO 10.1136/rapm-00002370-198101000-00001 VO 6 IS 1 A1 Jordan Katz A1 William Nelson YR 1981 UL http://rapm.bmj.com/content/6/1/1.abstract AB A study was performed on a group of inguinal herniorrhaphy patients comparing postoperative analgesia of spinal anesthetics with spinal anesthetics plus intrathecal morphine. Those patients receiving intrathecal morphine obtained significant pain relief as compared with the control group. Five of seven morphine patients developed urinary retention. Generalized itching resulted from the morphine use.