Evidence map›Paper›PMID 30075567›Full record

ArticleMedicine2018

Risk factors for nonunion of bone fracture in pediatric patients: An inception cohort study of 237,033 fractures.

Robert Zura, Sue C Kaste, Michael J Heffernan, William K Accousti, Dominic Gargiulo, Zhe Wang, R Grant Steen

Open access · goldAbstract read
In one paragraph

Article in Medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 7% of its field
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

28 citing papers in PubMed, 2 syntheses or guidelines pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Incidence, Risk Factors, Management, and Nonunion Rates of Pediatric Scaphoid Fractures: A National Database Study.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Time to consider fracture nonunion an orphan disease? An update into pathophysiology, epidemiology and therapeutic solutions.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025
    Review
  9. Review
  10. Fracture nonunion and delayed union.Journal of the Pediatric Orthopaedic Society of North America · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Paediatric tibial shaft fractures: an instructional review for the FRCS exam.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Obesity Increases Time to Union in Surgically Treated Pediatric Fracture Patients.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2022
    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 at 4 institutions in 1 country.

Robert ZuraDepartment of Orthopedic Surgery, Louisiana State University Health Science Center, New Orleans Departments of Radiology and Oncology, St. Jude Children's Research Hospital Department of Radiology, University of Tennessee School of Health Sciences, Memphis, Tennessee Department Orthopedic Surgery, Children's Hospital, New Orleans, Louisiana Department of Statistics, North Carolina State University, Raleigh, North Carolina.
Sue C Kaste
Michael J Heffernan
William K Accousti
Dominic Gargiulo
Zhe Wang
R Grant Steen
Louisiana State University Health Sciences Center New Orleans · USChildren's Hospital of New Orleans · USNorth Carolina State University · USUniversity of Tennessee Health Science Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Adult fracture nonunion risk is related to injury severity and surgical technique, yet nonunion is not fully explained by these risk factors alone; biological risk factors are also important. We test a hypothesis that risk factors associated with pediatric fracture nonunion are similar to adult nonunion risk factors.Inception cohort study in a large payer database of pediatric fracture patients (0-17 years) in the United States in calendar year 2011. Continuous enrollment in the database was required for 12 months, to allow time to capture a nonunion diagnosis. The final database collated demographic descriptors, treatment procedures as per Current Procedural Terminology (CPT) codes, comorbidities as per International Statistical Classification of Diseases and Related Health Problems (ICD-9) codes, and drug prescriptions as per National Drug Code Directory (Red Book) codes. Logistic regression was used to calculate odds ratios (ORs) for variables associated with nonunion.Among 237,033 pediatric fractures in 18 bones, the nonunion rate was 0.85%. Increased nonunion risk was associated with increasing age, male gender, high body-mass index, severe fracture (e.g., open fracture, multiple fractures), and tobacco smoking (all, P < .0001). Nonunion rate varied with fracture location; scaphoid, neck of femur, and tibia/fibula were most likely to go to nonunion. Nonunion ORs were significantly increased for risk factors including; surgical procedure, cardiovascular disease, Vitamin D deficiency, osteoarthritis, osteoporosis, and opioid prescription (all, multivariable P < .001).Nonunion is rare in pediatric patients, but nonunion risk increases with increasing age. We confirm a hypothesis that risk factors for pediatric nonunion are similar to adult nonunion risk factors. Scaphoid fractures in adolescents have nearly the same risk of nonunion as in adults. Opioids should be used cautiously in pediatric patients, as they are associated with a significant and substantial elevation of nonunion risk. LEVEL OF EVIDENCE: Prognostic study, Retrospective, Level II.

Indexed as

AdolescentAdultAge FactorsChildChild, PreschoolCohort StudiesDatabases, FactualFemaleFractures, UnunitedHumansInfantInfant, NewbornLogistic ModelsMaleMiddle AgedOdds Ratio

Identifiers

PMID30075567
PMCPMC6081185
OpenAlexW2885571694

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.