Evidence map›Paper›PMID 27709239›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2017

Patient-specific instruments for total knee arthroplasty can accurately predict the component size as used peroperative.

Martijn G M Schotanus, Daphne A L Schoenmakers, Rob Sollie, Nanne P Kort

Abstract read
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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. 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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  13. Knee Prosthesis in the Computer Era.Orthopaedic surgery · 2021
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  18. [Short-term effectiveness of total knee arthroplasty assisted by three-dimensional printing osteotomy navigation template].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2018
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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

4 authors at 2 institutions in 1 country.

Martijn G M SchotanusDepartment of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H vd Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands. martijnschotanus@hotmail.com.ORCID http://orcid.org/0000-0002-3975-6337
Daphne A L SchoenmakersDepartment of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H vd Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands.
Rob SollieDepartment of Orthopaedic Surgery, Sint Maartenskliniek, Nijmegen, The Netherlands.
Nanne P KortDepartment of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H vd Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands.
Zuyderland Medisch Centrum · NLSint Maartenskliniek · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePatients-specific instruments (PSI) for implantation of total knee arthroplasty (TKA) can be used to predict the implant size for both the femur and the tibia component. This study aims to determine the impact of approval of the PSI planning for TKA on the frequency of, and reason for intraoperative changes of implant sizes.

methodsThe clinical records of 293 patients operated with MRI- (90.4 %) and CT-based (9.6 %) PSI were reviewed for actual used implant size. Preoperative default planning from the technician and approved planning by the operating surgeon were compared with the intraoperative implanted component size for both the femur and tibia. Intraoperative reason for not following the default sizes was outdated. Furthermore, MRI- and CT-based PSI were compared for these outcomes.

resultsIn 93.9 and 91.1 % for, respectively, the femur and tibia (n.s.), the surgeon planned size was implanted during surgery. The predicted size of the femur (p < 0.00) and the tibia (p < 0.00) component planned by a technician differed from the implanted component sizes in 62 (21.2 %) and 51 (17.4 %) patients, respectively. In 17 cases, the femoral component size was adapted intraoperative based on the expert opinion of the operating surgeon. In 26 cases, the tibia component was changed during the surgery because of a mediolateral overhang, sclerotic bone, medial or lateral release, limited extension and/or fixed varus deformity. The results between the MRI- and CT-based PSI did not differ (n.s.).

conclusionsPSI is a tool to help the surgeon to achieve the best possible results during TKA. The planning made by a technician should always be validated and approved by the operating surgeon who has the ultimate responsibility regarding the operation. With PSI, the operating surgeon is able to minimize intraoperative implant size errors in advance to improve operating room efficiency with possible lowering hospital costs per procedure. LEVELS OF EVIDENCE: III.

Indexed as

Knee ProsthesisAdultAgedAged, 80 and overArthroplasty, Replacement, KneeCohort StudiesFemaleFemurHumansMagnetic Resonance ImagingMaleMiddle AgedReproducibility of ResultsRetrospective StudiesTibiaTomography, X-Ray ComputedCustom-fitGuidesImplant sizePatient-specific guidesPatient specific instrumentsPatient-specific matched instrumentsPreoperative planningTemplatingTotal knee arthroplasty

Identifiers

PMID27709239
OpenAlexW2529171842

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.