• Emine Aysu Salvız, Yavuz Gürkan, Murat Tekin, and Levent Buluç.
• Department of Anesthesiology and Reanimation, Şanlıurfa Training and Research Hospital, Şanlıurfa, Turkey. aysusalviz@gmail.com.
• Agri. 2014 Jan 1;26(1):34-8.

AbstractAnesthetizing the lumbar plexus at its origin facilitates a more "complete" psoas compartment block compared to peripheral approaches. It is usually performed using surface anatomical landmarks, and the site for local anesthetic injection is confirmed by observing quadriceps muscle contraction to peripheral nerve stimulation. Ultrasound may provide guidance alone or together with the aid of nerve stimulation during nerve blocks. We present a 48-year-old male patient, American Society of Anesthesiologists (ASA) physical status II, who refused spinal anesthesia, and underwent knee arthroscopy with ultrasound-guided psoas compartment block and general anesthesia. Following the standard monitoring and lateral decubitus positioning, the vertebral body, psoas, erector spinae, and quadratus lumborum muscles and hyperechoic nerve roots of the patient were visualized at the level of L4-5 with curvilinear ultrasound probe. The needle was inserted with ultrasound guidance, and correct tip position was confirmed with quadriceps contraction. Then, the mixture of 30 mL local anesthetic (10 mL 2% lidocaine and 20 ml 5% levobupivacaine) was injected at the estimated position of the lumbar plexus (junction of the posterior third and anterior two-thirds of the psoas muscle). He also received general anesthesia for the surgery. Anesthesia and surgical procedures were completed successfully without any additional anesthetic/analgesic requirement or complication. The postoperative period was pain-free both at rest and during mobilization for 24 hours. This case report shows that ultrasound-guided psoas compartment block is feasible and efficient for peri- and postoperative analgesia during knee arthroscopy.

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