The use of truncal nerve blocks has been described since 2001. Since then, there have been many studies trying to understand the ideal clinical scenarios for its use. Since 2001, the transversus abdominis plane block has evolved in many ways including from landmark based technique to ultrasound guided and more recently, into the quadratus lumborum (QL) block. Its anatomical placement, concentration of local anesthetic, volume of local anesthetic, and anatomic placement have all been raised as clinical questions. This article will discuss the literature of the QL block in an effort to understand how it is best used in a variety of clinical scenarios.

SažetakBlokovi trbušnog zida su uvedeni u kliničku praksu pre če-trdeset godina. Njihova popularnost dobija na značaju u poslednjoj dekadi, zahvaljujući uvođenju jednostavne, efikasne, ultrazvučno , koji su svoje glavno mesto imali u pedijatrijskoj anesteziji. Prvih godina XXI veka na scenu stupa transversus abdominis plane (TAP) blok, sa znatno širim poljem analgezije 6,7 . Isprva su izvođeni slepom metodom. Međutim, ove tehnike se vremenom razvijaju i svoju ekspanziju dostižu

Introduction: Interfascial plane blocks (IPB) are truncal blocks with local anesthetic injected into space between two muscle layers. IPBs are easy to learn, simple to perform, provide satisfactory analgesia up to 24 hours, having a minimal risk of complications.Methods: We present a retrospective analysis of the patients who had IPB as a part of postoperative pain management plan following either CD or hysterectomy in Leskovac General Hospital, Serbia during the period April 2017 -February 2022.Results: We had 131 patients who had IPB perioperatively. Bilateral QLB type 1 was performed in 53 patients after CD and in 68 patients after hysterectomy. Bilateral ESPB T10-11 was done following one CD case and in 9 patients before hysterectomy. Patients had both acetaminophen and nonsteroidal anti-inflammatory drug for postoperative pain control. Decreased usage of fentanyl and sevoflurane was noticed in the cases where IPB was performed preoperatively. Almost all patients had well-controlled pain, and were very satisfied with pain score of 0-4/10 at numeric rating scale during 24 hours after surgery, with no opioid use. There were no complications regarding block performance.Conclusion: QLB and ESPB have great potential to improve and facilitate postoperative pain management in obstetric and gynecologic surgery.

Introduction. The quadratus lumborum block (QLB) was the first interfascial plane block introduced in Leskovac General Hospital thanks to the international teaching Kybele Inc. program in April 2017. Outline of cases. During the period from April 2017 to December 2019, 22 pediatric patients underwent various surgical procedures and had the QLB type 1 block as a part of a multimodal perioperative pain management plan. Unilateral QLB was provided for unilateral inguinal hernia repair, orchidopexy, testicular torsion repair, and open appendectomy. Bilateral QLB was provided for laparoscopic appendectomy and cholecystectomy. Decreased use of fentanyl and sevoflurane was noticed in the cases when QLB was performed preoperatively. All patients had well-controlled pain. Conclusion. QLB is a simple and safe technique. Clear sonographic landmarks allow it to be easily performed. QLB has great potential to improve and facilitate postoperative pain management.