Evidence map›Paper›PMID 32642825›Full record

ArticleInternational orthopaedics2020

Metal on metal hip arthroplasty surveillance at a tertiary centre: design, patients' adherence, and cost analysis.

Alfredo Dell'Isola, Francesco Castagnini, Barbara Bordini, Maurizio Montalti, Maurizia Rolli, Francesco Traina

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Article in International orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

1 citing paper in PubMed.

  1. 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

6 authors.

Alfredo Dell'IsolaLaboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
Francesco CastagniniOrtopedia-Traumatologia e Chirurgia protesica e dei reimpianti d'anca e di ginocchio, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136, Bologna, Italy. francescocastagnini@hotmail.it.ORCID 0000-0002-3567-9194
Barbara BordiniLaboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
Maurizio MontaltiOrtopedia-Traumatologia e Chirurgia protesica e dei reimpianti d'anca e di ginocchio, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136, Bologna, Italy.
Maurizia RolliIRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136, Bologna, Italy.
Francesco TrainaOrtopedia-Traumatologia e Chirurgia protesica e dei reimpianti d'anca e di ginocchio, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136, Bologna, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMetal-on-metal (MOM) bearings may carry higher than expected revision rates and serious complications: an appropriate surveillance may be advocated. Aims of this paper were to (1) present the biennial experience of MOM surveillance in a tertiary centre, (2) describe the patients' adherence to monitoring, and (3) analyze the costs of the surveillance

methodsThe design of MOM surveillance was developed according to the guidelines of the Italian Society of Orthopaedics and Traumatology. The adherence to every follow-up was expressed as raw numbers and percentages. A cost analysis (direct and indirect costs) was conducted and projected in a five year time span.

resultsAbout 61.1% of patients adhered to the first step of the surveillance, and 13.5% answered to a specific questionnaire about MOM implant. About 36.2% of the patients participated for the annual follow-up, and 18.1% entered the six month follow-up program. Of the implants, 2.5% required a revision. A two year surveillance costs €45,520.30, €236,443.98 (57.7%) including revisions. Five-year projected costs will be €23.113,64 (5.6%). Hospital indirect costs, including personnel working days, were €150,392.30 (36.7%). The estimated economic burden for seven years will be €409,949.92 (direct € 259,557.62, indirect €150,392.30).

conclusionPatients' adherence to MOM surveillance is modest and the rate of dropouts seems not to stop over the time. Most of the expenses are due to revision surgeries, as well as indirect costs. Economy of scale may be suggested to reduce the costs, involving as much MOM population as possible.

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisMetal-on-Metal Joint ProsthesesCosts and Cost AnalysisHumansPolyethyleneProsthesis DesignProsthesis FailureReoperationRisk FactorsPolyethyleneExpensesFinancialFollow-upLevel of evidence: IV, clinical study. Retrospective case seriesManagementMetalProgram

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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.