Adductor Canal Block With or Without Biceps Femoris Short Head Block in Total Knee Arthroplasty

Sponsor
Cukurova University
Study ID
NCT07568106
Status
Not Yet Recruiting

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Conditions

  • Total Knee Arthroplasty

Eligibility Criteria

Sex
ALL
Age
18 Years - 80 Years
Healthy Volunteers
Not accepted

Interventions

  • Adductor Canal Block — PROCEDURE
    Ultrasound-guided adductor canal block performed with injection of local anesthetic into the adductor canal to block the saphenous nerve and provide postoperative analgesia following total knee arthroplasty.
  • Biceps Femoris Short Head Block — PROCEDURE
    Ultrasound-guided biceps femoris short head block performed with injection of local anesthetic between the biceps femoris short head and femur to target the posterolateral innervation of the knee for postoperative analgesia.
  • Sham Biceps Femoris Short Head Block — PROCEDURE
    Sham ultrasound-guided biceps femoris short head block performed with injection of normal saline at the same anatomical location to maintain blinding without providing active analgesia.

Study Details

Total knee arthroplasty is associated with moderate to severe postoperative pain, which may delay mobilization and recovery. Multimodal analgesia including regional anesthesia techniques is widely used to improve outcomes. The adductor canal block (ACB) provides anteromedial knee analgesia but may not adequately cover the posterolateral region. The biceps femoris short head (BiFeS) block is a novel motor-sparing regional anesthesia technique targeting the posterolateral capsule of the knee. This randomized controlled trial aims to compare the analgesic efficacy and functional outcomes of ACB combined with BiFeS block versus ACB alone in patients undergoing total knee arthroplasty. The primary outcome is posterior knee pain at postoperative 6 hours. Secondary outcomes include pain scores within 48 hours, opioid consumption, early and late functional recovery, and opioid-related adverse effects.

Key Dates

First listed
May 5, 2026
Start date
May 15, 2026
Status verified
Apr 2026
Primary completion
Jan 15, 2027
Completion
Feb 15, 2027

Study Design

Enrollment
132 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Experimental: ACB + BiFeS
    Participants receive spinal anesthesia followed by an ultrasound-guided adductor canal block and a biceps femoris short head block using local anesthetic for postoperative analgesia.
  • Active Comparator: ACB + sham BiFeS
    Participants receive spinal anesthesia followed by an ultrasound-guided adductor canal block and a sham biceps femoris short head block using normal saline.

Primary Outcome Measure

Posterior Knee Pain Intensity [ Time Frame: 6 hours postoperatively ]

Central Contacts

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