Evidence map›Paper›PMID 31420688›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020

Effect of additional distal femoral resection on flexion deformity in posterior-stabilized total knee arthroplasty.

Georg Matziolis, Manuela Loos, Sabrina Böhle, Christiane Schwerdt, Eric Roehner, Markus Heinecke

Abstract read
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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

11 citing papers in PubMed, 14 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Georg MatziolisOrthopaedic Department, Campus Eisenberg, University Hospital Jena, Klosterlausnitzer Str. 81, 07607, Eisenberg, Germany. g.matziolis@waldkliniken-eisenberg.de.ORCID http://orcid.org/0000-0002-5105-5875
Manuela LoosOrthopaedic Department, Campus Eisenberg, University Hospital Jena, Klosterlausnitzer Str. 81, 07607, Eisenberg, Germany.
Sabrina BöhleOrthopaedic Department, Campus Eisenberg, University Hospital Jena, Klosterlausnitzer Str. 81, 07607, Eisenberg, Germany.
Christiane SchwerdtOrthopaedic Department, Campus Eisenberg, University Hospital Jena, Klosterlausnitzer Str. 81, 07607, Eisenberg, Germany.
Eric RoehnerOrthopaedic Department, Campus Eisenberg, University Hospital Jena, Klosterlausnitzer Str. 81, 07607, Eisenberg, Germany.
Markus HeineckeOrthopaedic Department, Campus Eisenberg, University Hospital Jena, Klosterlausnitzer Str. 81, 07607, Eisenberg, Germany.
Waldkrankenhaus Rudolf Elle · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeFlexion deformity after total knee arthroplasty (TKA) is associated with poor function and dissatisfaction and should, therefore, be avoided. In the case of preoperative flexion deformity, an increased distal resection of the femur may be necessary. The degree of resection required has only been determined for cruciate-retaining (CR) prostheses to date and varies considerably from study to study. Although, for many surgeons, the algorithm for the treatment of a flexion deformity includes the resection of the posterior cruciate ligament (PCL) before additional distal resection, the degree of resection necessary for posterior-stabilized (PS)-type prostheses is not known.

methodsFifty consecutive patients (50 knees) who were due to undergo navigated TKA were included in this prospective study. At the end of the operation, the flexion deformity resulting from different sizes of distal femoral augmentations on the trial implants (0-8.5 mm) was determined using the navigation system.

resultsA linear relationship of 2.2° ± 0.3° flexion deformity per mm distal femoral augmentation was found. This was not dependent on age, sex, the preoperative coronal alignment, or the preoperative flexion deformity.

conclusionsIn conclusion, after the removal of posterior osteophytes and posterior capsule release, around 5 mm of the distal femur must be further resected in the case of 10° flexion deformity and 9 mm in the case of 20° flexion deformity. LEVEL OF EVIDENCE: II (Prospective cohort study).

Indexed as

AgedAged, 80 and overArthroplasty, Replacement, KneeContractureFemaleFemurHumansKnee JointKnee ProsthesisMaleMiddle AgedOsteoarthritis, KneePosterior Cruciate LigamentProspective StudiesRange of Motion, ArticularDistal femoral resectionFlexion deformityJoint linePosterior stabilizedTotal knee arthroplastyTotal knee replacement

Identifiers

PMID31420688
OpenAlexW2968320182

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.