Improved perioperative analgesia with ultrasound-guided ilioinguinal/iliohypogastric nerve or transversus abdominis plane block for open inguinal surgery: A systematic review and meta-analysis of randomized controlled trials

Yuexiang Wang, Tao Wu, Marisa J. Terry, Jason S. Eldrige, Qiang Tong, Patricia J. Erwin, Zhen Wang, Wenchun Qu

Research output: Contribution to journalArticle

8 Scopus citations


Purpose Ultrasound-guided ilioinguinal/iliohypogastric (II/IH) nerve and transversus abdominis plane (TAP) blocks have been increasingly utilized in patients for perioperative analgesia. We conducted this metaanalysis to evaluate the clinical efficacy of ultrasound-guided II/IH nerve or TAP blocks for perioperative analgesia in patients undergoing open inguinal surgery. Subjects and Methods A systematic search was conducted of 7 databases from the inception to March 5, 2015. Randomized controlled trials (RCTs) comparing the clinical efficacy of ultrasound-guided vs. landmark-based techniques to perform II/IH nerve and TAP blocks in patients with open inguinal surgery were included. We constructed random effects models to pool the standardized mean difference (SMD) for continuous outcomes and the odds ratio (OR) for dichotomized outcomes. Results Ultrasound-guided II/IH nerve or TAP blocks were associated with a reduced use of intraoperative additional analgesia and a significant reduction of pain scores during day-stay. The use of rescue drugs was also significantly lower in the ultrasound-guided group. Conclusion The use of ultrasound-guidance to perform an II/IH nerve or a TAP block was associated with improved perioperative analgesia in patients following open inguinal surgery compared to landmark-based methods.

Original languageEnglish (US)
Pages (from-to)1055-1060
Number of pages6
JournalJournal of Physical Therapy Science
Issue number3
StatePublished - Mar 31 2016



  • Ilioinguinal/iliohypogastric nerve
  • Inguinal surgery
  • Ultrasound

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation

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