Comparing the Safety and Effectiveness of Different Doses of Morphine Administered in Spinal Anethesia for Pain Relief After Hip Replacement Surgery

Patients were positioned in sitting position on operating table, interspinous space was identified using anatomical landmarks (intercristal line) and palpation. Entire procedure was conducted with aseptic technique, puncture site was prepared with izopropyl alcohol solution. Skin was anesthetized with subcutaneous injection of 1% lidocaine. Spinal puncture was achieved using median or paramedian technique with 27G pencil-point spinal needle. After confirmation of free flow of cerebrospinal fluid 15 mg of 0,5% bupivacaine was administered intrathecaly. Block level was assessed by lack of sensation to alcohol swab in periumbilical area and complete motor block (Bromage 3).

Postoperatively patients received 1,0g of paracetamol every 6 hours,

All patients were equipped with PCA capable syringe pump (Perfusor Space, B. Braun) with 40 milligrams of oxycodone. Care provider explained thoroughly how to operate the device and educated about possible adverse effects.

Postoperatively patients received 50mg of dexketoprofen intravenously every 8 hours.

Postoperatively patients received 1,0g of metamizole intravenously every 6 hours.

After securing intravenous line each patient received preemptive analgesia with 1,0g paracetamol and 1,0g metamizole.

Postoperatively each patient's vital signs were monitored continuously using patient monitor for 48 hours.