Evidence mapPaperPMID 41668439Full record

ArticleOrthopaedic surgery2026

Perioperative Factors Associated With Allogeneic Blood Transfusion in Elective THA.

Nikolai Ramadanov, Dakota Fuchs, Maximilian Heinz, Robert Prill, Roland Becker

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In one paragraph

Article in Orthopaedic surgery, 2026. 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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0cells of the map it votes in
3citing 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

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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.

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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.

Nikolai RamadanovCenter of Orthopaedics and Traumatology, Brandenburg Medical School, University Hospital Brandenburg/Havel, Brandenburg, Germany.ORCID https://orcid.org/0000-0003-4669-8187
Dakota FuchsCenter of Orthopaedics and Traumatology, Brandenburg Medical School, University Hospital Brandenburg/Havel, Brandenburg, Germany.
Maximilian HeinzCenter of Orthopaedics and Traumatology, Brandenburg Medical School, University Hospital Brandenburg/Havel, Brandenburg, Germany.
Robert PrillCenter of Orthopaedics and Traumatology, Brandenburg Medical School, University Hospital Brandenburg/Havel, Brandenburg, Germany.
Roland BeckerCenter of Orthopaedics and Traumatology, Brandenburg Medical School, University Hospital Brandenburg/Havel, Brandenburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIdentifying predictors of perioperative blood transfusion is essential for optimizing patient safety and perioperative blood management in total hip arthroplasty (THA). This Study aimed to identify perioperative factors independently associated with transfusion.

methodsThis retrospective study included all elective primary THA procedures performed between 2016 and 2023 at a certified Endoprosthetic Center. Demographic, clinical, laboratory, and operative variables were extracted. Total and hidden blood loss were calculated using the Nadler and Gross/Sehat formulas. A multivariable logistic regression model was fitted to identify independent factors associated with transfusion. Receiver operating characteristic (ROC) analyzes were performed for cup inclination and the 48-h hematocrit. Cutoff thresholds were derived using Youden's index, and combined decision rules (AND/OR) were evaluated.

resultsAmong 39 predictors, three variables were independently associated with transfusion: cup inclination (OR = 0.89; p = 0.0003), 48-h hematocrit (OR ≈5.17 × 10

conclusionEarly postoperative hematocrit is a robust and clinically actionable marker associated with transfusion risk in primary THA. Cup inclination reflects the surgical technique rather than direct transfusion risk, and reoperation likely indicates underlying perioperative complexity. Transfusion strategies should prioritize hematocrit-based evaluation rather than inclination-based thresholds. LEVEL OF EVIDENCE: III-retrospective single-center observational cohort study.

Indexed as

Arthroplasty, Replacement, HipBlood TransfusionAgedBlood Loss, SurgicalElective Surgical ProceduresFemaleHematocritHumansMaleMiddle AgedRetrospective StudiesRisk Factorsblood transfusionhematocrithidden blood losspredictorstotal hip arthroplasty

Identifiers

PMID41668439
PMCPMC12967687

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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 Socratic graph.