Evidence map›Paper›PMID 25300397›Full record

SynthesisInternational orthopaedics2015

Evaluation of the accuracy of patient-specific cutting blocks for total knee arthroplasty: a meta-analysis.

Etienne Cavaignac, Regis Pailhé, Gregoire Laumond, Jérôme Murgier, Nicolas Reina, Jean Michel Laffosse, Emilie Bérard, Philippe Chiron

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in International orthopaedics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 3 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

31 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  6. Rotational component alignment in patient-specific total knee arthroplasty compared with conventional cutting instrument.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Etienne CavaignacPôle Institut Locomoteur, Hôpital Pierre-Paul Riquet, Place du Docteur Baylac, TSA 40031, 31059, Toulouse, France, cavaignac.etienne@gmail.com.
Regis Pailhé
Gregoire Laumond
Jérôme Murgier
Nicolas Reina
Jean Michel Laffosse
Emilie Bérard
Philippe Chiron

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeBecause published studies on the accuracy achieved with patient-specific guides during total knee arthroplasty (TKA) contradict each other, this systematic review and meta-analysis sought to compare radiological TKA outcomes when patient-specific cutting blocks (PSCB) were used to the outcomes when standard manual instrumentation was used.

methodsThe meta-analysis was implemented according to PRISMA Statement Criteria. The primary endpoint was the hip-knee-ankle (HKA) angle, which represents the leg's mechanical axis. The accuracy of component placement in the coronal and sagittal planes, and the accuracy of femoral component rotation were also compiled. After testing for publication bias and heterogeneity across studies, data were aggregated random-effects modeling when necessary.

resultsFifteen articles were included: 916 total knee arthroplasty cases in the PSCB group and 998 in the MI group. The mechanical axis did not differ between the two groups (weighted mean difference 0.07°; 95 % CI, -0.5° to 0.65°; p = 0.8). Risk ratio analysis revealed no protective effect of using PSCB relative to the appearance of HKA angle outliers (RR = 0.88; 95 % CI, 0.68-1.13; p = 0.3). There was a trend towards a protective effect with PSCB for the risk of femoral component outliers, but the opposite was observed for the tibial component. The implantation procedure was stopped in 30 cases because the surgeon-authors found excessive discrepancies between the intra-operative observations and the pre-operative plan.

conclusionsThis meta-analysis found no evidence that using patient-specific cutting blocks provides superior accuracy to using manual instrumentation during TKA.

Indexed as

Arthroplasty, Replacement, KneeHumansKnee JointOsteoarthritis, KneeRadiographyRisk AssessmentRotationSurgery, Computer-AssistedTibiaTreatment Outcome

Identifiers

PMID25300397

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.