Ultrasound-Guided Quadro-Iliac Plane Block for Pain Management After Total Hip Arthroplasty

Condition(s) studied

Investigational drug(s) / intervention(s)

Quadro-Iliac Plane (QIP) Block: An ultrasound-guided Quadro-Iliac Plane block performed in the preoperative period. At the level of the iliac crest, 40 mL of a solution containing 0.25% levobupivacaine and 5 µg/mL epinephrine is injected into the fascial plane between the erector spinae muscle and the quadratus lumborum muscle under aseptic conditions.

Sham Block: A sham block performed using the same ultrasound-guided technique in the preoperative period. At the level of the iliac crest, 40 mL of 0.9% NaCl is injected into the fascial plane between the erector spinae muscle and the quadratus lumborum muscle under aseptic conditions.

Study summary

This prospective, randomized, double-blind study evaluates the analgesic effectiveness of the ultrasound-guided Quadro-Iliac Plane (QIP) block in patients undergoing primary total hip arthroplasty. The QIP block is a recently described fascial plane block. Patients will be randomized to receive either a QIP block with local anesthetic or a sham block with saline. The primary outcome is 24-hour opioid consumption. Secondary outcomes include motor block, dermatomal sensory assessment, pain scores, rescue analgesic requirement, quality of recovery (QoR-15), and opioid-related side effects.

Eligibility

Primary outcome measure(s)

• Postoperative 24-Hour Morphine PCA Consumption — Postoperative 24 hours
  Total amount of morphine delivered by the patient-controlled analgesia (PCA) device during the first 24 hours after surgery, recorded in milligrams (mg).

Trial sites (1)

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