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Femoral triangle block plus iPACK block versus local infiltration analgesia for anterior cruciate ligament reconstruction: an infographic
  1. Eric S Schwenk1 and
  2. Rajnish K Gupta2
  1. 1 Anesthesiology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
  2. 2 Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
  1. Correspondence to Dr Eric S Schwenk, Anesthesiology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; prepdrum{at}

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Anterior cruciate ligament reconstruction can be painful, and both the femoral triangle block and local infiltration analgesia have been shown to provide effective analgesia after this surgery. A relatively new block, the iPACK (infiltration between the popliteal artery and the capsule of the knee), has been reported to provide posterior knee analgesia. In this triple-blinded, randomized controlled trial of 60 patients, the combination of femoral triangle block and iPACK block reduced opioid consumption for 24 hours postoperatively compared with local infiltration analgesia.1 However, other pain and functional outcomes were the same in both groups.

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We would like to acknowledge Jim Snively, artist, of Pittsburgh, Pennsylvania, for creation of this infographic.



  • Twitter @ESchwenkMD, @dr_rajgupta

  • Collaborators Jim Snively.

  • Contributors Both authors edited the infographic and approved the final manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial, or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Commissioned; internally peer reviewed.

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