Evidence map›Paper›PMID 40856835›Full record

SynthesisActa neurochirurgica2025

Nerve transfer to musculocutaneous for elbow flexion restoration in brachial plexus injury (Ulnar and/or Median vs. Intercostal): A systematic review and meta-analysis of comparative studies.

Mohamed K A Genedy, Esraa Y Salama, Mohamed Ashraf Elsaadany, Mohamed A F AbdelWahab, Ahmed Fathy Amin, Ahmed A Lashin, Ahmed O Sabry

Abstract readSystematic ReviewMeta-AnalysisComparative Study
In one paragraph

Synthesis in Acta neurochirurgica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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

2 citing papers in PubMed.

  1. Review
  2. Article
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

7 authors.

Mohamed K A GenedyFaculty of Medicine, Cairo University, Cairo, Egypt.ORCID http://orcid.org/0009-0009-8234-1557
Esraa Y SalamaFaculty of Medicine, Benha University, Benha, Egypt.ORCID http://orcid.org/0000-0003-4640-4513
Mohamed Ashraf ElsaadanyFaculty of Medicine, Cairo University, Cairo, Egypt.ORCID http://orcid.org/0009-0005-2050-215X
Mohamed A F AbdelWahabFaculty of Medicine, Cairo University, Cairo, Egypt.ORCID http://orcid.org/0009-0009-5517-8205
Ahmed Fathy AminFaculty of Medicine, Benha University, Benha, Egypt.ORCID http://orcid.org/0009-0005-0433-8134
Ahmed A LashinFaculty of Medicine, Benha University, Benha, Egypt.ORCID http://orcid.org/0009-0000-9826-6664
Ahmed O SabryOrthopedic Surgery Department, Cairo University, Cairo, Egypt. ahmed.o.sabry@kasralainy.edu.eg.ORCID http://orcid.org/0000-0002-7705-0335

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNerve transfers are a cornerstone in the surgical management of traumatic brachial plexus injuries (BPIs) to restore elbow flexion. Common donor nerves include intraplexal sources like the ulnar and median nerves (fascicular transfers) and extraplexal sources like the intercostal nerves (ICNs). Despite the widespread use of both techniques, the optimal donor nerve remains a subject of debate. This systematic review and meta-analysis aims to compare these techniques for restoring elbow flexion in BPIs.

methodsA systematic search was conducted across PubMed, Embase, Cochrane Library, Scopus, and Web of Science to identify comparative studies. The quality of the studies included was assessed using the Newcastle-Ottawa Scale (NOS). Meta-analyses were performed to compare motor recovery (≥ M3), time to M3 recovery, and complication rates between the two surgical approaches.

resultsThe analysis included 13 studies with a total of 537 patients. In the overall cohort, which included mixed injury patterns, fascicular transfers showed a statistically significant advantage for achieving ≥ M3 recovery (RR = 0.84, 95% CI [0.75, 0.94]). However, when the analysis was restricted to patients with only upper-BPIs, there was no significant difference in achieving ≥ M3 strength between fascicular and ICN transfers (RR = 0.92, 95% CI [0.82, 1.04]). Fascicular transfers resulted in a significantly faster time to ≥ M3 recovery by approximately five months (MD = 5.25, 95% CI [2.87, 7.62]). Donor-site morbidity (18 sensory, 10 motor deficits) and wrist co-flexion were reported in fascicular transfer groups, whereas pneumothorax (4 cases) was the primary complication for ICN transfers.

conclusionIn patients with upper-BPIs, fascicular and ICN transfers yield comparable elbow flexion strength. The choice of procedure is a trade-off between the faster recovery offered by fascicular transfers and the better rehabilitation course of ICN transfers.

Indexed as

Brachial PlexusBrachial Plexus NeuropathiesElbow JointIntercostal NervesMedian NerveNerve TransferUlnar NerveHumansRange of Motion, ArticularRecovery of FunctionBrachial Plexus InjuryElbowIntercostalNerve TransferOberlin

Identifiers

PMID40856835
PMCPMC12380866

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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.