ArticleBMC anesthesiology2024
Sensory assessment of intramuscular quadratus lumborum block at the L2 level in open inguinal hernia repair patients.
Article in BMC anesthesiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Effects of intramuscular quadratus lumborum block on post-cesarean pain: a randomized controlled trial.Scientific reports · 2026Trial
- Anterior Quadratus lumborum block versus modified perichondrial thoracoabdominal nerve block (m-TAPA) for postoperative analgesia following laparoscopic cholecystectomy: a randomized controlled trial.BMC anesthesiology · 2025Trial
- The association between the cutaneous sensory block area, the surgical incision's location, and the block's analgesic efficacy: a post hoc sensitivity analysis of data from a controlled randomised multicentre trial.Surgical endoscopy · 2025Trial
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe effectiveness of the quadratus lumborum block (QLB) for postoperative pain management depends on the injection pathway used. There is limited research on the block area produced by intramuscular injection of local anesthesia in the quadratus lumborum muscle. This study aimed to determine the cutaneous sensory blockade area produced by an intramuscular quadratus lumborum block (QLBi) at the L2 level.
methodsTwenty patients aged 18-60 years with ASA grade I-II and a BMI of 18-30 kg/m
resultsAll 20 patients had reduced or lost cold sensation areas. The greatest extent of cold sensation reduction occurred at T7 (10%), and the least amount of cold sensation reduction occurred at L3 (10%). The block level covered T8 (20%), T9 (30%), T10 (45%), T11 (90%), T12 (95%), L1 (100%), and L2 (15%). Eighteen patients experienced areas of sensory loss, with the highest range at T11 and the lowest at L2. The duration of the blockade was 8.9 ± 3.8 h, with a maximum of 24 h and a minimum of 5 h. One patient experienced quadriceps weakness after surgery.
conclusionQuadratus lumborum block of intramuscular pathway can produce effective cutaneous sensory blockade, which can be used for postoperative analgesia of indirect inguinal hernia operation, and may also be beneficial to analgesia of other lower abdominal operations. However, the best method needs further confirmation to determine specific anesthesia methods for various operations. CHINESE CLINICAL TRIAL REGISTRY: June 2, 2018; ChiCTR1800016457.
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