Quality of Recovery After Dexamethasone, Ondansetron or Placebo Intrathecal Morphine Administration

Inclusion Criteria: * ASA physical status I or II, who will scheduled to undergo surgical treatment of lower limb fractures Exclusion Criteria: Patients who: (i) refused to participate in the study; (ii) were not able to communicate due to alterations in the level of consciousness, or neurologic, or psychiatric disease; (iii) presented with contraindication to any of the drugs used in the present study; (iv) had history of alcohol or drug abuse and (v) had surgery in the last 10 days were excluded. Reasons for exclusion after randomisation will be protocol violations or if the anesthesia technique was changed from a spinal to a general approach.