Evidence map›Paper›PMID 32002352›Full record

ReviewGlobal spine journal2020

Screw-Related Complications After Instrumentation of the Osteoporotic Spine: A Systematic Literature Review With Meta-Analysis.

Elke Rometsch, Maarten Spruit, Jack E Zigler, Venugopal K Menon, Jean A Ouellet, Christian Mazel, Roger Härtl, Kathrin Espinoza, Frank Kandziora

Open access · goldAbstract readReview
In one paragraph

Review in Global spine journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
9.1field-weighted citation impact, top 2% 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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 122 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Establishing a standardized biomechanical model for osteoporotic pincer (OF4) Fracture creation in human cadaveric spines: a novel experimental technique.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Article
  6. Article
  7. Article
  8. SBMC surgery · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. A novel UHMWPE anchor for improving the pullout resistance of pedicle screws.Frontiers in bioengineering and biotechnology · 2026
    Article
  13. Article
  14. Review
  15. Article
  16. Would Roussouly classification affect the diagnostic efficiency of vertebral bone quality score for assessing osteopenia or osteoporosis in lumbar degenerative disease?European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025
    Article
  17. Article
  18. Cervicothoracic volumetric bone mineral density assessed by opportunistic QCT may be a reliable marker for osteoporosis in adults.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Article
  19. Review
  20. Article

9 more citing papers are in PubMed but not listed here.

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

9 authors at 7 institutions in 6 countries.

Elke RometschAO Foundation, Dübendorf, Switzerland.
Maarten SpruitSt Maartenskliniek, Nijmegen, Netherlands.
Jack E ZiglerTexas Back Institute, Plano, TX, USA.
Venugopal K MenonSparsh Super Speciality Hospital, Bengaluru, Karnataka, India.
Jean A OuelletMcGill University Health Center, Montreal, Quebec, Canada.
Christian MazelInstitut Mutualiste Montsouris, Paris, France.
Roger HärtlNY Presbyterian Hospital-Weill Cornell Medical College, New York, NY, USA.
Kathrin EspinozaAO Foundation, Dübendorf, Switzerland.
Frank KandzioraCenter for Spine Surgery and Neurotraumatology, Frankfurt, Germany.
AO Foundation · CHCardiovascular Center Frankfurt · DECornell University · USInstitute Mutualiste Montsouris · FRMcGill University Health Centre · CASparsh Hospital · INTexas Back Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designSystematic literature review with meta-analysis.

objectiveOsteoporosis is common in elderly patients, who frequently suffer from spinal fractures or degenerative diseases and often require surgical treatment with spinal instrumentation. Diminished bone quality impairs primary screw purchase, which may lead to loosening and its sequelae, in the worst case, revision surgery. Information about the incidence of spinal instrumentation-related complications in osteoporotic patients is currently limited to individual reports. We conducted a systematic literature review with the aim of quantifying the incidence of screw loosening in osteoporotic spines.

methodsPublications on spinal instrumentation of osteoporotic patients reporting screw-related complications were identified in 3 databases. Data on screw loosening and other local complications was collected. Pooled risks of experiencing such complications were estimated with random effects models. Risk of bias in the individual studies was assessed with an adapted McHarm Scale.

resultsFrom 1831 initial matches, 32 were eligible and 19 reported screw loosening rates. Studies were heterogeneous concerning procedures performed and risk of bias. Screw loosening incidences were variable with a pooled risk of 22.5% (95% CI 10.8%-36.6%, 95% prediction interval [PI] 0%-81.2%) in reports on nonaugmented screws and 2.2% (95% CI 0.0%-7.2%, 95% PI 0%-25.1%) in reports on augmented screws.

conclusionsThe findings of this meta-analysis suggest that screw loosening incidences may be considerably higher in osteoporotic spines than with normal bone mineral density. Screw augmentation may reduce loosening rates; however, this requires confirmation through clinical studies. Standardized reporting of prespecified complications should be enforced by publishers.

Indexed as

adverse effectsagedcomplicationsosteoporosispedicle screwsscrew augmentationscrew looseningspinal fusion

Identifiers

PMID32002352
PMCPMC6963360
OpenAlexW2906853630

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.