Ultrasound Guided Obturator Nerve Block for Total Knee Replacement (TKR)

Not Applicable

• Conditions: Total Knee Replacement; Surgery
• Interventions: Other: Sciatic, femoral, obturator nerve blocks; Other: Sciatic nerve block, posterior lumbar plexus block

• Registration Number: NCT01755117
• Lead Sponsor: Larissa University Hospital

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2012-12
• Study First Submitted: 2012-12-18
• Study First Submitted QC: 2012-12-18
• Study First Posted: 2012-12-24
• Status Verified: 2014-04
• Last Update Submitted: 2014-04-27
• Last Update Posted: 2014-04-29
• Primary Completion: 2014-12
• Study Completion: 2014-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 100

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
TKR, sciatic, femoral, obturator	Sciatic, femoral, obturator nerve blocks	TKR surgery under ultrasound guided sciatic nerve block plus femoral nerve block plus obturator nerve block
TKR sciatic nerve block, posterior lumbar plexus block	Sciatic nerve block, posterior lumbar plexus block	TKR surgery under ultrasound guided sciatic nerve block plus posterior lumbar plexus block

Primary Outcome Measures

Name	Time	Method
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 Outcome Measures

Name	Time	Method
Intraoperative opioid consumption for TKR surgery under ultrasound guided sciatic nerve block plus femoral nerve block plus obturator nerve block	Intaoperatively

Trial Locations

Locations (1)

Larissa University Hospital; 🇬🇷 Larissa, Thessally, Greece