Effects of Addition of Magnesium Sulfate in Spinal Anesthesia on Sensory-Motor Blocks and Postoperative Pain in Lumbar Disk Herniation Surgery

Comparison of the Effects of Three Methods of Intrathecal Bupivacaine; Bupivacaine-Fentanyl and Bupivacaine-Fentanyl-Magnesium Sulfate on Sensory-Motor Blocks and Postoperative Pain in Patients Undergoing Lumbar Disk Herniation Surgery

The purpose of this study is to Compare three methods of intrathecal bupivacaine; bupivacaine-fentanyl; bupivacaine-fentanyl-magnesium sulfate on sensory-motor blocks and postoperative pain in patients undergoing lumbar disk herniation surgery.

• Comparison three methods of intrathecal bupivacaine;bupivacaine-fentanyl;bupivacaine-fentanyl-magnesium sulfate on sensory-motor blocks in patients undergoing lumbar disk herniation surgery
• Comparison three methods of intrathecal bupivacaine;bupivacaine-fentanyl;bupivacaine-fentanyl-magnesium sulfate on postoperative pain in patients undergoing lumbar disk herniation surgery
• Comparison three methods of intrathecal bupivacaine;bupivacaine-fentanyl;bupivacaine-fentanyl-magnesium sulfate on postoperative side effects in patients undergoing lumbar disk herniation surgery

Inclusion Criteria:

• Candidate for lumbar disk herniation surgery
• No contraindication to the spinal anesthesia
• No history of allergy to opioids and magnesium sulfate
• No peripheral or central neuropathies
• No previous history of surgery on same disk level

Exclusion Criteria:

• Patients with intraoperative tearing of dural suc
• Occuring of inadvertent intraoperative complications such as bleeding