Evidence map›Paper›PMID 40689946›Full record

Trial reportJournal of anesthesia2026

Comparison of quadro-iliac plane block and erector spinae plane block for postoperative analgesia management after single level lumbar discectomy surgery: a randomized, double-blind, controlled, prospective, multicenter study.

Engin İhsan Turan, Büşra Otlu Bıyıkoğlu, Volkan Özen, Selçuk Alver, Tarık Umutoğlu, Oğuzhan Cücü, Serdar Çevik, Bahadır Çiftçi, Ayça Sultan Şahin

Abstract readRandomized Controlled TrialMulticenter StudyComparative Study
PubMed Publisher
In one paragraph

Trial report in Journal of anesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Engin İhsan TuranDepartment of Anesthesiology and Reanimation, Istanbul Health Science University Kanuni Sultan Süleyman Hospital, Atakent Mahallesi Turgut Özal Bulvarı No:46/1, 34303, Istanbul, Turkey. enginihsan@hotmail.com.
Büşra Otlu BıyıkoğluDepartment of Anesthesiology and Reanimation, Istanbul Health Science University Kanuni Sultan Süleyman Hospital, Atakent Mahallesi Turgut Özal Bulvarı No:46/1, 34303, Istanbul, Turkey.
Volkan ÖzenDepartment of Anesthesiology and Reanimation, Cemil Taşçıoğlu City Hospital, Prof. Dr, Istanbul, Turkey.
Selçuk AlverDepartment of Anesthesiology and Reanimation, Zincirlikuyu Medicana Hospital, Istanbul, Turkey.
Tarık UmutoğluDepartment of Anesthesiology and Reanimation, Zincirlikuyu Medicana Hospital, Istanbul, Turkey.
Oğuzhan CücüDepartment of Anesthesiology and Reanimation, Zincirlikuyu Medicana Hospital, Istanbul, Turkey.
Serdar ÇevikDepartment of Neurosurgery, Istanbul Health Science University Kanuni Sultan Süleyman Education and Training Hospital, Istanbul, Turkey.
Bahadır ÇiftçiDepartment of Anesthesiology and Reanimation, Istanbul Medipol University, Istanbul, Turkey.
Ayça Sultan ŞahinDepartment of Anesthesiology and Reanimation, Istanbul Health Science University Kanuni Sultan Süleyman Hospital, Atakent Mahallesi Turgut Özal Bulvarı No:46/1, 34303, Istanbul, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEffective postoperative analgesia management is critical for optimizing recovery and patient satisfaction following lumbar discectomy. Erector Spinae Plane Block (ESPB) is an established regional anesthesia technique with proven efficacy, while the novel Quadro-Iliac Plane Block (QIPB) has shown promise as an alternative approach. This study compares the analgesic efficacy, opioid-sparing potential, and safety of ESPB and QIPB in single-level lumbar discectomies.

methodThis multicenter, prospective, randomized, double-blind study included 60 patients aged 18-65 years undergoing single-level lumbar discectomy. Patients were randomized into ESPB (n = 30) and QIPB (n = 30) groups. Both blocks were performed at the end of surgery, before the extubation under ultrasound guidance using 40 ml (0.25%) bupivacaine bilaterally. The primary outcome was postoperative pain assessed by the Numeric Rating Scale (NRS) at 12 h. Secondary outcomes included tramadol consumption, rescue analgesia requirements, hemodynamic parameters, and adverse events.

resultsThe primary outcome, 12-h NRS scores, did not differ significantly between groups (p > 0.05), indicating similar analgesic efficacy. Secondary outcomes-including total tramadol consumption (54.00 ± 49.03 mg for ESPB vs. 44.67 ± 44.16 mg for QIPB, p = 0.476), need for rescue analgesia, and incidence of nausea and vomiting-were also comparable. No motor block was observed in either group.

conclusionAlthough QIPB did not demonstrate superiority over ESPB, it was found to be not inferior in analgesic effect and safety outcomes. These findings suggest that QIPB may be a reliable alternative to ESPB in lumbar discectomy procedures.

Indexed as

DiskectomyLumbar VertebraeNerve BlockPostoperative PainAdolescentAdultAgedDouble-Blind MethodFemaleHumansMaleMiddle AgedPain MeasurementParaspinal MusclesProspective StudiesUltrasonography, InterventionalBack painPain managementPostoperative painRegional anesthesia

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.