Evidence map›Paper›PMID 23942938›Full record

Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2013

Rotation in total knee arthroplasty: no difference between patient-specific and conventional instrumentation.

Sébastien Parratte, Guillaume Blanc, Thomas Boussemart, Matthieu Ollivier, Thomas Le Corroller, Jean-Noël Argenson

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 13 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 13 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

63 citing papers in PubMed, 13 syntheses or guidelines pooled it.

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  6. Favourable alignment outcomes with MRI-based patient-specific instruments in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
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  15. 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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  16. No improvement in reducing outliers in coronal axis alignment with patient-specific instrumentation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
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3 more citing papers are in PubMed but not listed here.

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.

Sébastien ParratteDepartment of Orthopaedic Surgery, Institute for Locomotion, Aix-Marseille University, Marseille, France, sebastien@parratte.fr.
Guillaume Blanc
Thomas Boussemart
Matthieu Ollivier
Thomas Le Corroller
Jean-Noël Argenson

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIt was our hypothesis that patient-specific instrumentation (PSI) can improve the accuracy of the rotational alignment in TKA based on the concept of the system and on the potential to clearly identify pre-operatively during planning the classical anatomical landmarks that serve as references to set-up the rotation both for the femur and tibia. MATERIALS AND

methodsIn this prospective comparative randomized study, 40 patients (20 in each group) operated in our institution between September 2012 and January 2013 by the 2 senior authors were included. Randomization of patients into one of the two groups was done by the Hospital Informatics Department with the use of a systematic sampling method. All patients received the same cemented high-flex mobile bearing TKA. In the PSI group, implant position was compared to the planed position using previously validated dedicated software. The position of the implants (frontal and sagittal) was compared in the 2 groups on standard X-rays, and the rotational position was analysed on post-operative CT-scan.

results90 % of the patients add <2° or mm of difference between the planned position of the implants and the obtained position, except for the tibial rotation where the variations were much higher. Mean HKA was 179° (171-185) in the PSI group with 4 outliers (2 varus: 171° and 172°:184° and 185°) and 178.3° with 2 outliers (171° and 176°) in the control group. No difference was observed between the two groups concerning the frontal and sagittal position of the implants on the ML and AP X-rays. No significant difference of femoral rotation was observed between the two groups with a mean of 0.4° in the PSI group and 0.2° in the control group (p: n.s). Mean tibial rotation was 8° of internal rotation in the PSI group and 15° of internal rotation in the standard group (p: n.s).

conclusionBased on our results, we were unable to confirm our hypothesis as PSI cannot improve rotation in TKA. More work needs to be done to more clearly define the place of PSI in TKA, to keep on improving the accuracy of the system and to better define the individual targets in TKA in terms of frontal, sagittal and rotational positioning of the implant for each patient. LEVEL OF EVIDENCE: Prospective comparative randomized study, Level II.

Indexed as

Magnetic Resonance ImagingAgedAged, 80 and overAnatomic LandmarksArthroplasty, Replacement, KneeBone MalalignmentFemaleFemurHumansImage Interpretation, Computer-AssistedImaging, Three-DimensionalKnee ProsthesisMaleMiddle AgedOsteoarthritis, KneePostoperative Complications

Identifiers

PMID23942938

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.