Comparison of Analgesic Effects of ACB Versus ACB Combined With BiFeS Block in ACL Reconstruction Surgery

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorAnkara Etlik City Hospital

About this trial

Anterior cruciate ligament (ACL) reconstruction is commonly associated with moderate to severe postoperative pain, particularly during the early postoperative period and rehabilitation. Effective postoperative analgesia is important to facilitate early mobilization, improve patient comfort, and reduce opioid consumption and opioid-related adverse effects.

Adductor canal block (ACB) is commonly used as part of multimodal analgesia for knee surgery because it provides analgesia while largely preserving quadriceps motor function. However, ACB primarily targets the anteromedial aspect of the knee and may provide limited analgesia for pain arising from the posterior and posterolateral knee.

The biceps femoris short head (BiFeS) block is a motor-sparing fascial plane block targeting sensory contributions to the posterolateral knee region. Combining BiFeS block with ACB may therefore provide more comprehensive analgesia than ACB alone.

This randomized study aims to compare the postoperative analgesic efficacy of adductor canal block alone with adductor canal block combined with BiFeS block in patients undergoing anterior cruciate ligament reconstruction surgery.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients aged 18-65 years

Patients scheduled for elective unilateral anterior cruciate ligament reconstruction surgery

American Society of Anesthesiologists physical status I-III

Patients who provide written informed consent

Disqualifiers

Age <18 or >65 years

ASA physical status IV or higher

Coagulopathy or ongoing anticoagulant therapy incompatible with peripheral nerve block

Infection at the block injection site

Trial design

Design model

Parallel

Treatments tested in this trial

  • Adductor Canal Block

    Procedure/Surgery

    Ultrasound-guided adductor canal block will be performed using 10 mL of 0.25% bupivacaine.

  • BiFeS Block

    Procedure/Surgery

    Ultrasound-guided BiFeS block will be performed using 20 mL of 0.25% bupivacaine.

Treatment groups

110 Participants
are divided into 2 treatment groups
Group A: Adductor Canal Block GroupActive comparator 1 intervention
Group B: Adductor Canal Block + BiFeS Block GroupActive comparator 2 interventions

Trial outcomes

Primary outcomes

1

Pain Score

Pain will be assessed at rest using the visual analog scale on a scale from 0 (no pain) to 100 (worst pain). Pain assessment will be done at 6th hour after surgery.

Time frame
On the operation day

Secondary outcomes

1

Pain Scores

Pain will be assessed at rest using the visual analog scale on a scale from 0 (no pain) to 100 (worst pain). Pain assessment will be done at 0st, 1st, 2nd, 12th, and 24th hours after surgery.

Time frame
On the operation day
2

Total Postoperative Morphine Consumption During the First 24 Hours AfterSurgery

Total Postoperative Morphine Consumption During the First 24 HoursAfter Surgery

Time frame
On the operation day

Other outcomes

Sponsors and contacts

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