Evidence map›Paper›PMID 41915813›Full record

ArticleThe Journal of international medical research2026

The pericapsular nerve group (PENG) block versus placebo for postoperative analgesia in elective total hip arthroplasty: Study protocol for a multicenter blinded randomized controlled trial.

Brigid Brown, Craig Morrison, Matthew G Cehic, Jasper Prijs, Nynke Van der Gaast, Maxim Nagorny, Joseph Jang, Hidde M Kroon, Job Doornberg, Ruurd Jaarsma and 1 more

Abstract readClinical Trial Protocol
PubMed Full text at PMC Publisher
In one paragraph

Article in The Journal of international medical research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Brigid BrownCollege of Medicine and Public Health, Flinders University, Australia.
Craig MorrisonCollege of Medicine and Public Health, Flinders University, Australia.
Matthew G CehicCollege of Medicine and Public Health, Flinders University, Australia.
Jasper PrijsCollege of Medicine and Public Health, Flinders University, Australia.
Nynke Van der GaastCollege of Medicine and Public Health, Flinders University, Australia.
Maxim NagornyCollege of Medicine and Public Health, Flinders University, Australia.
Joseph JangCollege of Medicine and Public Health, Flinders University, Australia.
Hidde M KroonDepartment of Surgery, Royal Adelaide Hospital, Australia.
Job DoornbergCollege of Medicine, University of Groningen, The Netherlands.
Ruurd JaarsmaCollege of Medicine and Public Health, Flinders University, Australia.
D-Yin LinCollege of Medicine and Public Health, Flinders University, Australia.ORCID 0000-0001-9372-3686

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BackgroundThe pericapsular nerve group (PENG) block is a novel motor-sparing regional technique for hip analgesia. We hypothesized that in patients undergoing hip arthroplasty, the PENG block is more effective in reducing postoperative pain than placebo.MethodsIn this multicenter, double-blind, randomized controlled trial, patients undergoing total hip arthroplasty received spinal anesthesia and local infiltration analgesia, along with either a PENG block or a sham block. The primary outcome was dynamic pain score (numeric rating scale 0-10) measured 3 h postoperatively on day 0. Secondary outcomes included quadriceps strength, pain scores on postoperative day 1, opioid consumption, complications, length of hospital stay, and patient-reported outcome measures.DiscussionThis is the protocol of our trial in which recruitment and data collection were conducted between 28 June 2021 and 8 November 2021. The results can be found in our published work.

Indexed as

AnalgesiaArthroplasty, Replacement, HipNerve BlockPostoperative PainAnesthesia, SpinalDouble-Blind MethodElective Surgical ProceduresFemaleHumansMaleMulticenter Studies as TopicPain MeasurementRandomized Controlled Trials as Topicanalgesiapericapsular nerve group blockregional anesthesiatotal hip arthroplastyTotal hip replacement

Identifiers

PMID41915813
PMCPMC13047277

What OpenQuestion holds

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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.