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

Comparison of Postoperative Analgesic Effects of Adductor Canal Block Versus Adductor Canal Block Combined With Biceps Femoris Short Head Block in Patients Undergoing Anterior Cruciate Ligament Reconstruction Surgery

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07859397
Enrollment
110
Registered
2026-10-05
Start date
2026-10-05
Completion date
2027-10-27
Last updated
2026-10-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior Cruciate Ligament Reconstruction, Pain Management

Keywords

Anterior Cruciate Ligament Reconstruction, Adductor Canal Block, Biceps Femoris Short Head Block

Brief summary

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.

Interventions

PROCEDUREAdductor Canal Block

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

PROCEDUREBiFeS Block

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

Sponsors

Ankara Etlik City Hospital
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* 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

Exclusion criteria

* 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 * Patient refusal

Design outcomes

Primary

MeasureTime frameDescription
Pain ScoreOn the operation dayPain 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.

Secondary

MeasureTime frameDescription
Pain ScoresOn the operation dayPain 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.
Total Postoperative Morphine Consumption During the First 24 Hours AfterSurgeryOn the operation dayTotal Postoperative Morphine Consumption During the First 24 HoursAfter Surgery

Countries

Turkey (Türkiye)

Contacts

CONTACTAtakan Sezgi
kansezgi@gmail.com00905323327000
CONTACTJülide Ergil
julideergil@hotmail.com00905323469216

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Oct 9, 2026