RESUMEN
Adequate postoperative pain control is in highlight because it has been known that uncontrolled pain has adverse effects on postoperative cardiopulmonary, immunologic functions and in turn, possibly prolongs patient's recovery. One hundred and two patients who underwent spine surgery including laminectomy, fusion and fixation were given 10mg of morphine into operative field (exposed epidural area) just prior to wound closure for relief of postoperative pain. These patients were compaired with 51 patients who did not received epidural morphine. The median of the numerical rating scale of epidural morphine spray group (Group A) at 4, 12, 24 hours after operation revealed 2, 3, 5 respectively and no epidural morhine group (Grade B) revealed 4, 5 and 5. In conclusion, postoperative pain relief of group A is superior to that of group B.