Infiltration Techniques for Local Infiltration Analgesia With Liposomal Bupivacaine in Extracapsular and Intracapsular Hip Fracture Surgery: Expert Panel Opinion

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Background:Liposomal bupivacaine (LB) has demonstrated efficacy in improving pain scores and reducing opioid consumption across a variety of surgical settings, including orthopaedic surgery. However, meticulous infiltration techniques combined with a multimodal approach are important to optimizing outcomes.Methods:A panel of 4 orthopaedic surgeons and 3 anesthesiologists convened on April 1, 2017, to discuss current practices and develop a consensus statement regarding local infiltration analgesia with LB for extracapsular and intracapsular hip fracture surgery, including LB infiltration techniques.Results:Optimizing surgical outcomes with LB in hip fracture surgery requires an understanding of the neuroanatomy of the surgical site and the pharmacology of the drug. Meticulous infiltration technique is critical to achieve optimal results with LB given its viscosity and reduced diffusion compared with bupivacaine HCl. For extracapsular procedures, a total injection volume of 120 mL is recommended, whereas intracapsular procedures typically require a lower volume (∼80 mL). In both cases, infiltration is best achieved using a 22-gauge needle and applying a tracking and/or fanning technique. To ensure optimal placement, LB should be infiltrated using multiple, small-volume (1- to 5-mL) injections spaced at 1.0-cm intervals.Conclusions:These consensus recommendations regarding LB infiltration techniques can serve as a resource for designing clinical studies to evaluate outcomes using periarticular infiltration of LB in extracapsular and intracapsular hip fracture surgery as part of a multimodal pain management approach.Level of Evidence:Level V.

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