Evidence map›Paper›PMID 22439827›Full record

ArticleBMC musculoskeletal disorders2012

Effect of local zoledronate on implant osseointegration in a rat model.

David A Back, Stephan Pauly, Lisa Rommel, Norbert P Haas, Gerhard Schmidmaier, Britt Wildemann, Stefan H Greiner

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC musculoskeletal disorders, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 45 citations in OpenAlex.

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  10. Local delivery of zoledronate from a poly (d,l-lactide)-coating increases fixation of hydroxy-coated implants.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2017
    Article
  11. Article
  12. Local delivery of zoledronate from a poly (D,L-lactide)-Coating increases fixation of press-fit implants.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2016
    Article
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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

7 authors at 2 institutions in 1 country.

David A BackDepartment of Orthopedics and Traumatology, German Armed Forces Hospital Berlin, Berlin, Germany.
Stephan Pauly
Lisa Rommel
Norbert P Haas
Gerhard Schmidmaier
Britt Wildemann
Stefan H Greiner
Charité - Universitätsmedizin Berlin · DEHeidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAn implant coating with poly(D, L-lactide) (PDLLA) releasing incorporated zoledronic acid (ZOL) has already proven to positively effect osteoblasts, to inhibit osteoclasts and to accelerate fracture healing. Aim of this study was to investigate the release kinetics of the chosen coating and the effect of different concentrations of ZOL locally released from this coating on the osseointegration of implants.

methodsFor release kinetics the release of C14-labled ZOL out of the coating was monitored over a period of six weeks in vitro. For testing the osseointegration, titanium Kirschner wires were implanted into the medullary canal of right femurs of 100 Sprague Dawley rats. The animals were divided into five groups receiving implants either uncoated or coated with PDLLA, PDLLA/ZOL low (1.2% w/w) or PDLLA/ZOL high (2% w/w). Additionally, a group with uncoated implants received ZOL intravenously (i.v.). After 56 days animals were sacrificed, femurs dissected and either strength of fixation or histological bone/implant contacts and newly formed bone around the implants were determined.

resultsRelease kinetics revealed an initial peak in the release of C14-ZOL with a slight further progression over the following weeks. There was no significant enhancement of osseointegration for both groups who received ZOL-coated implants or ZOL i.v. compared to the controls in biomechanical or histological analyses, except for a significant raise in strength of fixation of ZOL i.v. versus PDLLA.

conclusionsEven though the investigated local ZOL application did not enhance the osseointegration of the implant, the findings might support its application in fracture treatment, since fracture stabilization devices are often explanted after consolidation.

Indexed as

Bone WiresCoated Materials, BiocompatibleAnimalsBiomechanical PhenomenaBone Density Conservation AgentsChemistry, PharmaceuticalDiphosphonatesDrug CarriersDrug ImplantsFemurImidazolesInjections, IntravenousKineticsOsseointegrationPolyestersRadiographyBone Density Conservation AgentsCoated Materials, BiocompatibleDiphosphonatesDrug CarriersDrug ImplantsImidazolesPolyesterspoly(lactide)Zoledronic Acid

Identifiers

PMID22439827
PMCPMC3323428
OpenAlexW2017309738

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.