Indications: Analgesia after hip fractures or arthroplasty (especially through anterior approach).
Goal: Local anesthetic spread in the plane between the iliopsoas muscle and pubic ramus, and anterior capsule of the hip cranially to the acetabular rim. This injection anesthetizes most of the nociceptive fibers to the hip joint capsule which emanate from the lumbar plexus. In addition, this injection may prevent or decrease the postoperative spasm of the iliacus muscle, which is a common cause of postoperative pain after anterior hip arthroplasty.
Transducer: Curved (can use linear in smaller patients)
Needle: 80-100 mm, 22 gauge
Local anesthetic volume: 10-12 mL