Evidence map›Paper›PMID 21311404›Full record

ArticleSpine2011

Outcomes for single-level lumbar fusion: the role of bone morphogenetic protein.

Kevin S Cahill, John H Chi, Michael W Groff, Kevin McGuire, Christopher C Afendulis, Elizabeth B Claus

Abstract read
In one paragraph

Article in Spine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

9 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. FDA-approved bone grafts and bone graft substitute devices in bone regeneration.Materials science & engineering. C, Materials for biological applications · 2021
    Review
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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

6 authors at 3 institutions in 1 country.

Kevin S CahillDepartment of Neurosurgery, Brigham and Women's Hospital, Boston, MA 02115, USA. kcahill3@partners.org
John H Chi
Michael W Groff
Kevin McGuire
Christopher C Afendulis
Elizabeth B Claus
Brigham and Women's Hospital · USHarvard University · USYale University · US

Funding

HARVARD CLINICAL AND TRANSLATIONAL SCIENCE CENTER (UL1)UL1RR025758 · NCRR · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2008 to 2011
$91.4M
NCRR NIH HHS UL1 RR025758
6 · The paper itself

Abstract

STUDY

designRetrospective analysis of a population-based insurance claims data set.

objectiveTo determine the risk of repeat fusion and total costs associated with bone morphogenetic protein (BMP) use in single-level lumbar fusion for degenerative spinal disease. SUMMARY OF BACKGROUND DATA: The use of BMP has been proposed to reduce overall costs of spinal fusion through prevention of repeat fusion procedures. Although radiographic fusion rates associated with BMP use have been examined in clinical trials, few data exist regarding outcomes associated with BMP use in the general population.

methodsUsing the MarketScan claims data set, 15,862 patients that underwent single-level lumbar fusion from 2003 to 2007 for degenerative disease were identified. Propensity scores were used to match 2372 patients who underwent fusion with BMP to patients who underwent fusion without BMP. Logistic regression models, Kaplan-Meier estimates, and Cox proportional hazards models were used to examine risk of repeat fusion, length of stay, and 30-day readmission by BMP use. Cost comparisons were evaluated with linear regression models using logarithmic transformed data.

resultsAt 1 year from surgery, BMP was associated with a 1.1% absolute decrease in the risk of repeat fusion (2.3% with BMP vs. 3.4% without BMP, P = 0.03) and an odds ratio for repeat fusion of 0.66 (95% confidence interval [CI] = 0.47-0.94) after multivariate adjustment. BMP was also associated with a decreased hazard ratio for long-term repeat fusion (adjusted hazards ratio = 0.74, 95% CI = 0.58-0.93). Cost analysis indicated that BMP was associated with initial increased costs for the surgical procedure (13.9% adjusted increase, 95% CI = 9.9%-17.9%) as well as total 1-year costs (10.1% adjusted increase, 95% CI = 6.2%-14.0%).

conclusionAt 1 year, BMP use was associated with a decreased risk of repeat fusion but also increased health care costs.

Indexed as

Bone Morphogenetic ProteinsCost-Benefit AnalysisFemaleHumansInsurance Claim ReviewKaplan-Meier EstimateLogistic ModelsLumbar VertebraeMaleMiddle AgedOutcome Assessment, Health CareProportional Hazards ModelsReoperationRetrospective StudiesSpinal DiseasesSpinal FusionBone Morphogenetic Proteins

Identifiers

PMID21311404
PMCPMC3134569
OpenAlexW2053687411

What OpenQuestion holds

Textmetadata
LicenceTDM
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.