Postoperative Analgesic Efficacy of ACB+iPACK vs FTB+Selective Tibial+Obturator Blocks in ACL Reconstruction (ACL-Analgesia)

Da Nang Hospital

Status: Not yet enrolling

Conditions: Postoperative Pain; Anterior Cruciate Ligament Injuries

Treatments: Procedure: Ultrasound-guided Obturator Nerve Block; Procedure: Ultrasound-guided Adductor Canal Block (ACB); Procedure: Ultrasound-guided Femoral Triangle Block (FTB); Procedure: Ultrasound-guided Selective Tibial Nerve Block; Procedure: Ultrasound-guided iPACK block

Study type: Interventional

Funder types: Other

Identifiers

NCT07702552

2026.15.171

Details and patient eligibility

About

This prospective, comparative study aims to evaluate the postoperative analgesic efficacy of ultrasound-guided Adductor Canal Block (ACB) combined with iPACK block versus Femoral Triangle Block (FTB) combined with selective tibial nerve block and obturator nerve block in patients undergoing arthroscopic anterior cruciate ligament (ACL) reconstruction. The primary objective is to determine which regional anesthesia regimen provides superior pain relief at rest and during movement. The secondary objectives include assessing morphine consumption, motor blockade using the Bromage score, patient satisfaction, and potential adverse effects of these anesthesia techniques.

Enrollment: 100 estimated patients

Sex: All

Ages: 16+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age 16 years and older
• Patients undergoing elective arthroscopic anterior cruciate ligament (ACL) reconstruction
• ASA physical status I-II
• Indicated for spinal anesthesia
• Provided informed consent

Exclusion criteria

• Infection at the injection site
• Spinal cord or lower limb nerve injury
• Contraindications to regional anesthesia (Levobupivacaine)
• Known allergy to Paracetamol or Diclofenac
• Coagulopathy

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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100 participants in 2 patient groups

ACB and iPACK Block Group

Experimental group

Description:

Ultrasound-guided Adductor Canal Block (10ml levobupivacaine 0.2%) and iPACK block (15ml levobupivacaine 0.2%) combined with standard multimodal analgesia (Paracetamol + Diclofenac).

Treatment:

Procedure: Ultrasound-guided Adductor Canal Block (ACB)

Procedure: Ultrasound-guided iPACK block

FTB, Tibial and Obturator Blocks Group

Active Comparator group

Description:

Ultrasound-guided Femoral Triangle Block (10ml levobupivacaine 0.2%), selective Tibial Nerve Block (5ml levobupivacaine 0.2%), and Obturator Nerve Block (10ml levobupivacaine 0.2%) combined with standard multimodal analgesia

Treatment:

Procedure: Ultrasound-guided Obturator Nerve Block

Procedure: Ultrasound-guided Selective Tibial Nerve Block

Procedure: Ultrasound-guided Femoral Triangle Block (FTB)