Sensory and motor nerve blocks.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Weight less than 100 kg Patient undergoing lower extremity orthopedic surgery
Exclusion criteria
Exclusion criteria: Pregnancy History of addiction or smoking, drugs and alcohol liver disease cardiovascular disease Chronic pain report lasting more than 6 months Drug sensitivity or ropivacaine, fentanyl and dexmedetomidine contraindication of spinal anesthesia Long-term drug history or opioid and NSAIDs
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time to start sensory block. Timepoint: After the intrathecal injection of the anesthetic drug. Method of measurement: Sensory testing with no sensation of tingling with Nidel No. 23 is evaluated as subcutaneous stimulation. | — |
Secondary
| Measure | Time frame |
|---|---|
| Postoperative pain. Timepoint: Every 15 minutes in recovery and every 2 hour in ward. Method of measurement: With using visual Analog Scale. The criterion is a line between zero to ten and zero in the sense of no pain and ten being the most severe equivalent of the pain experienced by the patient. With this concept, the patient is asked to indicate their current pain intensity on line.;Blood pressure. Timepoint: Every 15 minutes during surgery and recovery. Method of measurement: Pulse Oximeter.;Heart rate. Timepoint: Every 15 minutes during surgery and recovery. Method of measurement: Pulse Oximeter. | — |
Countries
Iran (Islamic Republic of)
Contacts
Esfahan University of Medical Sciences