Evidence map›Paper›PMID 25649197›Full record

ArticleClinical orthopaedics and related research2015

Antimicrobial Release From Prefabricated Spacers Is Variable and the Dose Is Low.

Oren Goltzer, Alex McLaren, Derek Overstreet, Christopher Galli, Ryan McLemore

Abstract readComparative Study
In one paragraph

Article in Clinical orthopaedics and related research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Oren GoltzerBanner Good Samaritan Medical Center, Banner Orthopaedic Residency, 1320 North 10th Street, Suite A, Phoenix, AZ, 85006, USA.
Alex McLaren
Derek Overstreet
Christopher Galli
Ryan McLemore

Funding

Arizona State University PREP for Biomedical ResearchR25GM071798 · NIGMS · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI HOGUE, BRENDA G. · 2004 to 2014
$2.4M
NIGMS NIH HHS R25 GM071798
6 · The paper itself

Abstract

backgroundHigh-dose antimicrobial-loaded bone cement (ALBC) is recommended to treat orthopaedic infections. Elution characteristics from prefabricated ALBC spacers and how they compare with hand-mixed ALBC are not well described. QUESTIONS/PURPOSES: (1) How does antimicrobial release from prefabricated spacers compare with release from hand-mixed ALBC over time? (2) Is antimicrobial release uniform across the surface of prefabricated ALBC spacers? (3) Do variations exist between different prefabricated spacer components? (4) Do textured surfaces release more antimicrobial than smooth surfaces?

methodsSix prefabricated ALBC spacer components, two hip and four knee, and three hand-mixed ALBC formulations were studied in this comparative laboratory study. Gentamicin was eluted from 41 discrete sites over the surfaces of six spacer components and compared with elution from 15 ALBC specimens, five from each of three hand-mixed formulations. Elution was compared between spacer sites, components, and surface texture. Statistical analysis was performed by analysis of variance and Tukey's multiple-comparison test or t-test.

resultsGentamicin release was highest in the first 24 hours for both prefabricated ALBC spacers and hand-mixed ALBC. Elution decreased over 7 days similarly for both. At Day 7, prefabricated ALBC spacers eluted more than hand-mixed 1 g ALBC (1 g ALBC: 1.49 ± 0.34, prefabricated: 3.59 ± 1.48, mean difference = 2.1 [0.2-4.0], p = 0.04) but eluted less than 5 g ALBC (9.21 ± 1.31, mean difference = -5.6 [-3.5 to -7.7], p < 0.001) and less than 10 g ALBC (35.8 ± 1.69, mean difference = -32.2 [-29.8 to -34.6], p < 0.001). Release varied from 2.7 to 9.9 µg/mm(2) over the surface of the spacers and from 3.5 to 5.5 µg/mm(2) between components with no component different than the others (Tukey). Release from textured surfaces was inconsistent.

conclusionsAntimicrobial release from prefabricated ALBC spacers is consistent with low-dose ALBC. Variation across the surface and between components is small compared with changes in antimicrobial load. CLINICAL RELEVANCE: Antimicrobial release from prefabricated ALBC spacers is consistent with local antimicrobial delivered from other low-dose ALBC formulations.

Indexed as

Bone CementsDrug CarriersAnti-Bacterial AgentsGentamicinsProsthesis DesignProsthesis-Related InfectionsAnti-Bacterial AgentsBone CementsDrug CarriersGentamicins

Identifiers

PMID25649197
PMCPMC4457736

What OpenQuestion holds

Textmetadata
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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.