Biceps Femoris Short Head (BiFeS) Block and Adductor Canal Block for Postoperative Analgesia Following Total Knee Arthroplasty

Sponsor
Ömer Kayar
Study ID
NCT07577869
Status
Recruiting
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Conditions

  • Postoperative Pain Following Knee Arthroplasty
  • Total Knee Arthroplasty

Eligibility Criteria

Sex
ALL
Age
18 Years - 80 Years
Healthy Volunteers
Accepted

Interventions

  • Procedure: Biceps Femoris Short Head Block — PROCEDURE
    Patients will receive spinal anesthesia followed by ultrasound-guided Biceps Femoris Short Head (BiFeS) block using 25 mL of 0.25% bupivacaine and adductor canal block using 15 mL of 0.25% bupivacaine before surgery. Standard multimodal analgesia will be provided using intravenous paracetamol and dexketoprofen, along with postoperative patient-controlled analgesia with morphine for 24 hours.
  • Procedure: Spinal Anesthesia — PROCEDURE
    Patients will receive spinal anesthesia without peripheral nerve block. Standard multimodal analgesia will be provided using intravenous paracetamol and dexketoprofen, along with postoperative patient-controlled analgesia with morphine for 24 hours.

Study Details

This prospective randomized controlled study aims to evaluate the effect of ultrasound-guided Biceps Femoris Short Head (BiFeS) block combined with adductor canal block on postoperative opioid consumption and pain control in patients undergoing elective total knee arthroplasty under spinal anesthesia. A total of 60 patients aged 18-80 years with ASA physical status I-III scheduled for unilateral elective total knee arthroplasty will be randomized into two groups. The intervention group will receive spinal anesthesia followed by BiFeS block and adductor canal block before surgery, in addition to standard multimodal analgesia and postoperative morphine patient-controlled analgesia (PCA). The control group will receive spinal anesthesia and standard multimodal analgesia with postoperative morphine PCA without peripheral nerve block. The primary outcome is total morphine consumption during the first 24 postoperative hours. Secondary outcomes include postoperative pain scores assessed by Numeric Rating Scale (NRS), time to first analgesic requirement, time to first foot movement, and Quality of Recovery-15 (QoR-15) scores.

Key Dates

First listed
May 11, 2026
Start date
Jun 2, 2026
Status verified
Jun 2026
Primary completion
Jun 2, 2027
Completion
Jul 2, 2027

Study Design

Enrollment
60 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE

Arms

  • Experimental: Block Group
    Patients receive spinal anesthesia followed by ultrasound-guided BiFeS block and adductor canal block before surgery, plus standard multimodal analgesia and morphine PCA.
  • Active Comparator: Multimodal Analgesia Group
    Patients receive spinal anesthesia only, followed by standard multimodal analgesia and morphine PCA.

Primary Outcome Measure

Total Morphine Consumption in 24 Hours [ Time Frame: Within the first 24 hours after surgery ]

Central Contacts

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