Adductor Canal Block Versus Femoral Nerve Block for Analgesia After Anterior Cruciate Ligament Reconstruction Arthroscopically

NCT ID: NCT02355093

Last Updated: 2015-02-04

Basic Information

• Recruitment Status: UNKNOWN
• Clinical Phase: PHASE4
• Total Enrollment: 40 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2014-07-31
• Study Completion Date: 2015-10-31

Brief Summary

This study aims to compare continuous femoral nerve block with adductor canal block after anterior cruciate ligament reconstruction arthroscopically，especially in the effect on quadriceps strength; and to evaluate which regional anesthesia is more ideal for the patients postoperatively.

Detailed Description

Forty patients with American Society of Anesthesiologists（ASA） Ⅰ-Ⅲ（no limitation of age and gender）are randomized to receive either a continuous adductor canal block(ACB) or a femoral nerve block(FNB) via a catheter (a continuous infusion of 0.2% ropivacaine, 5 mL/h for 48 hours)in the PACU immediately after the anterior cruciate ligament reconstruction arthroscopically. Patients were under general anesthesia during the operation and received a femoral nerve block with 0.25% ropivacaine 10ml before the surgery.Both groups will receive postoperatively IV patient controlled analgesia (PCA) with morphine (bolus 0.8mg,lock-out time 15 minutes, background infusion 2ml/h)beside the continuous nerve block. Patients are going to be visited for follow-up on the day of surgery and in the following two days. Quadriceps strength is assessed with the displacement of patella.VAS at rest time、degree of knee flexion、VAS at 45°flexion of the knee、dose of opioids、whether the patient has sleep disturbance are also recorded.

Conditions

Anesthesia; Reaction

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

adductor canal block (ACB)

We performed an ultrasound survey at the medial part of the thigh，the needle is introduced in-plane and 2 to 3 mL of saline is used to ensure correct placement of the needle in the vicinity of the saphenous nerve in the adductor canal,the catheter is introduced and advanced 1 to 2 cm beyond the tip of the needle.The study medication is administered as an infusion of 0.2% ropivacaine at a rate of 5mL/h during the next 48 hours.

Group Type: EXPERIMENTAL

adductor canal block (ACB)

Intervention Type: PROCEDURE

We performed an ultrasound survey at the medial part of the thigh，the needle is introduced in-plane and 2 to 3 mL of saline is used to ensure correct placement of the needle in the vicinity of the saphenous nerve in the adductor canal,the catheter is introduced and advanced 1 to 2 cm beyond the tip of the needle.The study medication is administered as an infusion of 0.2% ropivacaine at a rate of 5mL/h during the next 48 hours.

ropivacaine

Intervention Type: DRUG

Femoral nerve block (FNB)

the catheter is inserted in-plane with the probe parallel to the inguinal crease, to obtain a short-axis view of the nerve. The correct needle placement is confirmed by injecting 2 to 3 mL of saline to cause tissue expansion below the iliac fascia, lateral to the femoral artery, and in the vicinity of the femoral nerve. The catheter is introduced 1 to 2 cm beyond the tip of the needle，an infusion of 0.2% ropivacaine at a rate of 5mL/h is administered during the next 48 hours.

Group Type: ACTIVE_COMPARATOR

Femoral nerve block (FNB)

Intervention Type: PROCEDURE

the catheter is inserted in-plane with the probe parallel to the inguinal crease, to obtain a short-axis view of the nerve. The correct needle placement is confirmed by injecting 2 to 3 mL of saline to cause tissue expansion below the iliac fascia, lateral to the femoral artery, and in the vicinity of the femoral nerve. The catheter is introduced 1 to 2 cm beyond the tip of the needle，an infusion of 0.2% ropivacaine at a rate of 5mL/h is administered during the next 48 hours.

ropivacaine

Intervention Type: DRUG

Interventions

adductor canal block (ACB)

We performed an ultrasound survey at the medial part of the thigh，the needle is introduced in-plane and 2 to 3 mL of saline is used to ensure correct placement of the needle in the vicinity of the saphenous nerve in the adductor canal,the catheter is introduced and advanced 1 to 2 cm beyond the tip of the needle.The study medication is administered as an infusion of 0.2% ropivacaine at a rate of 5mL/h during the next 48 hours.

Intervention Type: PROCEDURE

Femoral nerve block (FNB)

the catheter is inserted in-plane with the probe parallel to the inguinal crease, to obtain a short-axis view of the nerve. The correct needle placement is confirmed by injecting 2 to 3 mL of saline to cause tissue expansion below the iliac fascia, lateral to the femoral artery, and in the vicinity of the femoral nerve. The catheter is introduced 1 to 2 cm beyond the tip of the needle，an infusion of 0.2% ropivacaine at a rate of 5mL/h is administered during the next 48 hours.

Intervention Type: PROCEDURE

ropivacaine

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• ASA Ⅰ-Ⅲ
• Anterior Cruciate Ligament Reconstruction

Exclusion Criteria

• patient refusal
• chronic use of opioids
• coagulation disorders
• infection at the puncture site
• allergic to anaesthetic
• preexisting neurological disorders
• communication difficulties

• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Shanghai Jiao Tong University Affiliated Sixth People's Hospital

OTHER

Sponsor Role: lead

Responsible Party

Daqiang Zhao

Daqiang Zhao

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Daqiang Zhao, Master

Role: PRINCIPAL_INVESTIGATOR

Shanghai Jiaotong University Affiliated Sixth People's Hospital Shanghai,China

Other Identifiers

ACB vs FNB

Identifier Type: -

Identifier Source: org_study_id