Evidence map›Paper›PMID 24042965›Full record

Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2014

Patient-specific instrumentation for total knee arthroplasty does not match the pre-operative plan as assessed by intra-operative computer-assisted navigation.

Corey Scholes, Varun Sahni, Sebastien Lustig, David A Parker, Myles R J Coolican

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 4 pooled it
7.3field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 4 syntheses or guidelines pooled it, 49 citations in OpenAlex.

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  18. Case-related factors affecting cutting errors of the proximal tibia in total knee arthroplasty assessed by computer navigation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
    Article
  19. Comparison between cylindrical axis-reference and articular surface-reference femoral bone cut for total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Article
  20. Assessment of patient-specific instrumentation precision through bone resection measurements.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    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

5 authors at 2 institutions in 2 countries.

Corey ScholesSydney Orthopaedic Research Institute, Suite 13, Level 1, 445 Victoria Avenue, Chatswood, NSW, 2067, Australia, cscholes@sori.com.au.
Varun Sahni
Sebastien Lustig
David A Parker
Myles R J Coolican
Sydney Orthopaedic Research Institute · AULyon Genou Centre Albert Trillat · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe introduction of patient-specific instruments (PSI) for guiding bone cuts could increase the incidence of malalignment in primary total knee arthroplasty. The purpose of this study was to assess the agreement between one type of patient-specific instrumentation (Zimmer PSI) and the pre-operative plan with respect to bone cuts and component alignment during TKR using imageless computer navigation.

methodsA consecutive series of 30 femoral and tibial guides were assessed in-theatre by the same surgeon using computer navigation. Following surgical exposure, the PSI cutting guides were placed on the joint surface and alignment assessed using the navigation tracker. The difference between in-theatre data and the pre-operative plan was recorded and analysed.

resultsThe error between in-theatre measurements and pre-operative plan for the femoral and tibial components exceeded 3° for 3 and 17% of the sample, respectively, while the error for total coronal alignment exceeded 3° for 27% of the sample.

conclusionThe present results indicate that alignment with Zimmer PSI cutting blocks, assessed by imageless navigation, does not match the pre-operative plan in a proportion of cases. To prevent unnecessary increases in the incidence of malalignment in primary TKR, it is recommended that these devices should not be used without objective verification of alignment, either in real-time or with post-operative imaging. Further work is required to identify the source of discrepancies and validate these devices prior to routine use. LEVEL OF EVIDENCE: II.

Indexed as

AgedAged, 80 and overArthroplasty, Replacement, KneeBone MalalignmentFemaleFemurHumansIntraoperative PeriodKnee ProsthesisMaleMedical ErrorsMiddle AgedOsteoarthritis, KneePreoperative PeriodSurgery, Computer-AssistedTibia

Identifiers

PMID24042965
OpenAlexW1977490766

What OpenQuestion holds

Textmetadata
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.