Surgery, Total Knee Replacement
Conditions
Brief summary
Total Knee Replacement can be performed under the combination of posterior lumbar plexus block plus sciatic nerve block. The investigators can have the same outcome by performing instead of posterior lumbar plexus block more peripheral nerve blocks. More specifically under the combination of sciatic nerve block plus femoral nerve block plus obturator nerve block.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* Age 18 - 80 yrs * ASA I - III * TKR surgery
Exclusion criteria
* Coagulopathy disorders * Infection at the puncture site for the interscalene block * Neurologic deficit in the arm that is going to be operated * Allergy to local anesthetics * BMI \> 35 * Psychiatric disorders * Patient's refusal * Problems with patient communication
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Feasibility of TKR surgery under ultrasound guided sciatic nerve block plus femoral nerve block plus obturator nerve block measured with Pain Score on the Visual Analog Scale | Completion of surgery | If the patient complains for pain \> 4 in VAS and there is no relief with fentanyl administration the anesthesia plan converts to general anesthesia with laryngeal mask |
Secondary
| Measure | Time frame |
|---|---|
| Intraoperative opioid consumption for TKR surgery under ultrasound guided sciatic nerve block plus femoral nerve block plus obturator nerve block | Intaoperatively |
Other
| Measure | Time frame |
|---|---|
| Postoperative opioid consumption | First 24 postoperative hours |
Countries
Greece