Evidence map›Paper›PMID 41810841›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2026

Large language models are comparable with commonly used statistical software: A validation of GPT 5.1 for frequentist meta-analysis in orthopaedics.

Mikhail Salzmann, Nikolai Ramadanov, Robert Prill, Robert Hable, Roland Becker

Abstract readValidation StudyComparative Study
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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

  1. Pooled it
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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

5 authors.

Mikhail SalzmannCentre of Orthopaedics, Traumatology and Plastic Surgery, Brandenburg Medical School, University Hospital Brandenburg an der Havel, Brandenburg an der Havel, Germany.ORCID https://orcid.org/0009-0006-0957-2285
Nikolai RamadanovCentre of Orthopaedics, Traumatology and Plastic Surgery, Brandenburg Medical School, University Hospital Brandenburg an der Havel, Brandenburg an der Havel, Germany.
Robert PrillCentre of Orthopaedics, Traumatology and Plastic Surgery, Brandenburg Medical School, University Hospital Brandenburg an der Havel, Brandenburg an der Havel, Germany.
Robert HableFaculty of Applied Computer Science, Deggendorf Institute of Technology, Deggendorf, Germany.
Roland BeckerCentre of Orthopaedics, Traumatology and Plastic Surgery, Brandenburg Medical School, University Hospital Brandenburg an der Havel, Brandenburg an der Havel, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to evaluate whether Chat Generative Pre-trained Transformer (ChatGPT; Version 5.1) can reproduce frequentist meta-analytic calculations with an accuracy comparable to established statistical software in orthopaedic research.

methodsIn this methodological comparison study, data from two previously published orthopaedic meta-analyses with identical statistical architectures as reference standards were used. Between-study variance (τ

resultsAcross seven evaluated outcomes, ChatGPT-5.1 reproduced the direction of effects in all cases. Deviations compared with reference meta-analyses were classified as minor in three outcomes (43%), moderate in one outcome (14%) and major in three outcomes (43%). Agreement was highest in low-heterogeneity settings, whereas substantial deviations occurred in outcomes with pronounced between-study heterogeneity, particularly under random-effects models.

conclusionChatGPT-5.1 demonstrates emerging capability to approximate frequentist meta-analytic calculations, particularly in low-heterogeneity settings. However, its tendency to underestimate between-study variability and to deviate in complex random-effects scenarios limits its reliability as a standalone tool. At present, large language models may support exploratory analyses but cannot fully replace dedicated statistical software for meta-analyses in orthopaedic research. LEVEL OF EVIDENCE: Level III.

Indexed as

Large Language ModelsMeta-Analysis as TopicOrthopedicsSoftwareGenerative Artificial IntelligenceHumansReproducibility of Resultsartificial intelligenceheterogeneitymeta‐researchorthopaedic researchstatistical validation

Identifiers

PMID41810841
PMCPMC13418392

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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.