Technical Feasibility and Sensory Distribution of the Quadro-Iliac Plane Block in Morbid Obesity: A Case Report
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Sarikaya Ozel Elif1, Rabia Bayar1, Mehmet Gokhan Taflan2
1From the Department of Anesthesiology and Reanimation, Karabuk Training and Research Hospital, Karabuk, Türkiye.
The quadro-iliac plane block (QIPB) is a recently described interfascial plane block used for postoperative analgesia after lumbar spine surgery. We report a case of a 52-year-old morbidly obese woman (body mass index [BMI] 42.3 kg/m2) who received bilateral ultrasound-guided QIPB using 30 mL of 0.25% bupivacaine per side. The iliac crest provided a consistent sonographic landmark despite increased soft tissue depth. Numeric rating scale scores at rest and during activity remained ≤2 throughout the postoperative assessments, with a total 24-hour intravenous morphine consumption of 2 mg. No motor block and complications were observed. Serial sensory assessments demonstrated region-specific, time-dependent dermatomal blockade.
The quadro-iliac plane block (QIPB) is a recently described interfascial plane block used for postoperative analgesia after lumbar spine surgery. We report a case of a 52-year-old morbidly obese woman (body mass index [BMI] 42.3 kg/m2) who received bilateral ultrasound-guided QIPB using 30 mL of 0.25% bupivacaine per side. The iliac crest provided a consistent sonographic landmark despite increased soft tissue depth. Numeric rating scale scores at rest and during activity remained ≤2 throughout the postoperative assessments, with a total 24-hour intravenous morphine consumption of 2 mg. No motor block and complications were observed. Serial sensory assessments demonstrated region-specific, time-dependent dermatomal blockade.
