ReviewCureus2023
Superior Trunk Block Is an Effective Phrenic-Sparing Alternative to Interscalene Block for Shoulder Arthroscopy: A Systematic Review and Meta-Analysis.
Review in Cureus, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07587203 (Effect of Liposomal Bupivacaine and Bupivacaine Hydrochloride for Superior Trunk Block of the Interscalene Brachial Plexus on Postoperative Diaphragmatic Function and Analgesia in Shoulder Surgery), which is not on this map. Cited by 10 papers.
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.
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.
Effect of Liposomal Bupivacaine and Bupivacaine Hydrochloride for Superior Trunk Block of the Interscalene Brachial Plexus on Postoperative Diaphragmatic Function and Analgesia in Shoulder Surgery: A Multicenter, Randomized Controlled Study
Who cites it
10 citing papers in PubMed, 6 citations in OpenAlex.
- Effect of different liposomal bupivacaine concentrations in ultrasound-guided superior trunk block on postoperative analgesia and mobility: a randomized double-blind controlled trial protocol for shoulder arthroscopy.Annals of medicine · 2026Trial
- A randomized controlled trial of brachial plexus block manipulation versus steroid injection in conscious patients for moderate to severe shoulder stiffness.BMC musculoskeletal disorders · 2026Trial
- The Interscalene Triangle: A Cadaveric Dissection of a Critical Neurovascular Corridor at the Root of the Neck.Cureus · 2026Article
- Sub-Omohyoid Fascial Plane Block as a Diaphragm-Sparing Approach for Shoulder Analgesia: A Narrative Review.Journal of clinical medicine · 2026Review
- The diaphragm-sparing effect of interscalene block with a low-volume of ropivacaine 0.1% vs. 0.5%: A double-blind, controlled, randomised trial.European journal of anaesthesiology and intensive care · 2026Article
- Article
- Regional Anesthesia Strategies in Orthopedic Trauma.Orthopedic reviews · 2026Article
- Considerations for regional anaesthesia for the shoulder joint - Beyond the C5-C6 nerve roots.Journal of anesthesia and translational medicine · 2025Review
- A survey of anaesthetic management of regional anaesthesia for patients undergoing arthroscopic shoulder surgery in Australia.BMC anesthesiology · 2025Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The interscalene block (ISB) is the standard regional anesthesia for shoulder arthroscopy. However, the superior trunk block (STB) is an alternative with a potentially safer profile. This meta-analysis aimed to compare the incidence and degree of hemidiaphragmatic paralysis and block efficacy of these techniques. We searched MEDLINE, EMBASE, Scopus, and Cochrane databases to identify randomized controlled trials (RCTs). The main outcome was total hemidiaphragmatic paralysis. We used the Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) framework to assess the certainty of evidence. Four RCTs and 359 patients were included. The STB group showed lower total hemidiaphragmatic paralysis (RR 0.07; 95% CI 0.04 to 0.14;
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Identifiers
What OpenQuestion holds
Registered trials
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.