Postoperative analgesia with pericapsular nerve group (PENG) block for primary total hip arthroplasty: a retrospective study

Excerpt

The pericapsular nerve group (PENG) block, which targets sensory branches of the obturator, accessory obturator, and femoral nerves in the anterior capsule of the hip, has been proposed as an effective method to treat pain associated with hip fractures and total hip arthroplasty (THA).1 The PENG block provides coverage of the sensory nerves supplying the anterior hip2 while sparing motor blockade of the quadriceps; a known complication of fascia iliaca and femoral blocks.3 We began an Enhanced Recovery After Surgery program for joint arthroplasty in September 2018 and the PENG block was introduced in an attempt to improve quality of recovery. A survey of the American Association of Hip and Knee Surgeons showed periarticular local infiltration anesthesia (LIA) is used in 80.3% of THA patients.4 We anticipated that adding a PENG block to LIA, rather than replacing it, would gain easier acceptance from both surgeons and anesthesiologists. We present the findings of our retrospective review that compares the analgesic benefit of adding PENG block to LIA and multimodal analgesia in THA. …