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Not yet recruiting NCT07702552

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

No phase Interventional Anterior Cruciate Ligament Injuries Postoperative Pain

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Ultrasound-guided Adductor Canal Block (ACB), Ultrasound-guided iPACK block, Ultrasound-guided Femoral Triangle Block (FTB), Ultrasound-guided Selective Tibial Nerve Block.
Who it may be relevant to
Registry conditions: Anterior Cruciate Ligament Injuries, Postoperative Pain. Basic parameters: from 16 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Center list to be confirmed — check the primary protocol.
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Evaluation of Postoperative Analgesic Efficacy in Anterior Cruciate Ligament Reconstruction: Ultrasound-Guided Adductor Canal Block Combined With iPACK Block Versus Femoral Triangle Block Combined With Selective Tibial and Obturator Nerve Blocks at Da Nang Hospital

Overview

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.

Interventions

  • Procedure Ultrasound-guided Adductor Canal Block (ACB)
    Ultrasound-guided administration of 10 mL levobupivacaine 0.2% into the adductor canal space to provide postoperative analgesia
  • Procedure Ultrasound-guided iPACK block
    Ultrasound-guided administration of 15 mL levobupivacaine 0.2% into the space between the popliteal artery and the posterior capsule of the knee to provide posterior knee analgesia.
  • Procedure Ultrasound-guided Femoral Triangle Block (FTB)
    Ultrasound-guided administration of 10 mL levobupivacaine 0.2% at the distal apex of the femoral triangle to provide anterior and medial knee analgesia
  • Procedure Ultrasound-guided Selective Tibial Nerve Block
    Ultrasound-guided administration of 5 mL levobupivacaine 0.2% around the tibial nerve in the popliteal fossa
  • Procedure Ultrasound-guided Obturator Nerve Block
    Ultrasound-guided administration of 10 mL levobupivacaine 0.2% targeting the anterior and posterior branches of the obturator nerve within the fascial planes between the adductor muscles.

Primary outcome measures

  • Visual Analog Scale (VAS) for Pain at Rest and Movement [Time frame: Within the first 24 hours postoperatively]
Secondary outcome measures (3)
  • Total Rescue Morphine Consumption [Time frame: Within the first 24 hours postoperatively]
  • Motor Blockade Assessment using Bromage Score [Time frame: Within the first 24 hours postoperatively]
  • Patient Satisfaction Score [Time frame: 24 hours postoperatively]

Eligibility criteria

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

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Triple blind
Primary purpose
Treatment

Study locations

Center list to be confirmed — check the primary protocol.

Publications

  • Bai S, Hu A, Li W, Chen Y, Li X, Song X, Liu D, Ba Y, Chen Q, Liu X, Li Y, Zhang H, Xie Y, Wang X. Comparing the analgesic effects of femoral triangle block and adductor canal block following total knee arthroplasty: a systematic review and meta-analysis. BMC Anesthesiol. 2025 Apr 23;25(1):202. doi: 10.1186/s12871-025-03073-3. PMID 40269716
  • Jaeger P, Nielsen ZJ, Henningsen MH, Hilsted KL, Mathiesen O, Dahl JB. Adductor canal block versus femoral nerve block and quadriceps strength: a randomized, double-blind, placebo-controlled, crossover study in healthy volunteers. Anesthesiology. 2013 Feb;118(2):409-15. doi: 10.1097/ALN.0b013e318279fa0b. PMID 23241723
  • Ghodki PS, Shalu PS, Sardesai SP. Ultrasound-guided adductor canal block versus femoral nerve block for arthroscopic anterior cruciate ligament repair under general anesthesia. J Anaesthesiol Clin Pharmacol. 2018 Apr-Jun;34(2):242-246. doi: 10.4103/joacp.JOACP_172_17. PMID 30104837

Identifiers

NCT: NCT07702552 · 2026.15.171

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗