Comparison of the Analgesic Efficacy of Adductor Canal Block Versus Adductor Canal Plus Biceps Femoris Short Head Block in Patients Undergoing Knee Arthroscopy
Comparison of the Analgesic Efficacy of Adductor Canal Block Versus Adductor Canal Plus Biceps Femoris Short Head Block in Patients Undergoing Knee Arthroscopy: A Prospective Randomized Controlled Trial
Kanuni Sultan Suleyman Training and Research Hospital
50 participants
Nov 20, 2025
INTERVENTIONAL
Conditions
Summary
This prospective, randomized, controlled, and multicenter clinical study aims to compare the postoperative analgesic efficacy of two regional anesthesia techniques commonly used in knee arthroscopy: adductor canal block (ACB) and combined adductor canal block plus biceps femoris short head (ACB+BiFeS) block. The study will evaluate postoperative pain control, opioid consumption, adverse effects, hospital stay, and patient satisfaction. Findings will help determine the most effective and safe method for postoperative analgesia in knee arthroscopy patients.
Eligibility
Inclusion Criteria4
- Age ≥ 18 years
- ASA physical status I-III
- Scheduled for elective knee arthroscopy under spinal anesthesia
- Ability to provide written informed consent
Exclusion Criteria6
- Coagulopathy or bleeding diathesis
- Current use of anticoagulant therapy
- Known allergy or contraindication to local anesthetics used in the study
- History of diabetes mellitus with neuropathy or other neuropathic disorders
- Contraindications to regional anesthesia techniques
- Refusal to participate
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Interventions
Ultrasound-guided injection of 10 mL 0.25% bupivacaine into the adductor canal targeting the femoral artery region, providing motor-sparing analgesia to the medial/anterior knee.
Combination of adductor canal block (10 mL 0.25% bupivacaine) and biceps femoris short head block with 25 mL 0.25% bupivacaine, deposited at the interfascial plane between BiFeS muscle and lateral femoral cortex to extend analgesia to the posterolateral knee.
Locations(1)
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NCT07242339