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

Larissa University Hospital

Status: Unknown

Conditions: Surgery; Total Knee Replacement

Treatments: Other: Sciatic, femoral, obturator nerve blocks; Other: Sciatic nerve block, posterior lumbar plexus block

Study type: Interventional

Funder types: Other

Identifiers

NCT01755117

TKR obturator

Details and patient eligibility

About

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.

Enrollment: 100 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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100 participants in 2 patient groups

TKR, sciatic, femoral, obturator

Active Comparator group

Description:

TKR surgery under ultrasound guided sciatic nerve block plus femoral nerve block plus obturator nerve block

Treatment:

Other: Sciatic, femoral, obturator nerve blocks

TKR sciatic nerve block, posterior lumbar plexus block

Active Comparator group

Description:

TKR surgery under ultrasound guided sciatic nerve block plus posterior lumbar plexus block

Treatment:

Other: Sciatic nerve block, posterior lumbar plexus block