Evidence map›Paper›PMID 33996459›Full record

ArticleJournal of clinical orthopaedics and trauma2021

A short-term radiological and clinical comparison between the bi-cruciate and cruciate retaining total knee arthroplasty A retrospective case controlled study.

S Kalaai, Y F L Bemelmans, M Scholtes, B Boonen, E H van Haaren, M G M Schotanus

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical orthopaedics and trauma, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 32% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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

6 authors at 2 institutions in 1 country.

S KalaaiDept. of Orthopaedic Surgery, Zuyderland Medical Centre, Location Sittard-Geleen, the Netherlands.
Y F L BemelmansDept. of Orthopaedic Surgery, Zuyderland Medical Centre, Location Sittard-Geleen, the Netherlands.
M ScholtesDept. of Orthopaedic Surgery, Zuyderland Medical Centre, Location Sittard-Geleen, the Netherlands.
B BoonenSchool of Care and Public Health Research Institute, Faculty of Health, Medicine & Life Sciences, Maastricht University Medical Centre, P. Debyelaan 25, NL-6202, AZ, Maastricht, the Netherlands.
E H van HaarenDept. of Orthopaedic Surgery, Zuyderland Medical Centre, Location Sittard-Geleen, the Netherlands.
M G M SchotanusDept. of Orthopaedic Surgery, Zuyderland Medical Centre, Location Sittard-Geleen, the Netherlands.
Zuyderland Medisch Centrum · NLMaastricht University Medical Centre · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to provide a short term comparison in radiological and clinical outcome between Bi-Cruciate Retaining (BCR)- and Cruciate Retaining (CR) Total Knee Arthroplasty (TKA).

methodsThe cohort consists of 122 patients undergoing a TKA with PSI, equally distributed over the BCR- and CR-TKA group. Perioperative conditions were observed and radiological images were analysed pre-, 6-weeks, and 1-year postoperative to quantify alignment differences between BCR- and CR-TKA. Preoperatively predicted templates were compared with the implanted size to determine predictive value. In addition mean range of motion and revision rates were determined in both groups.

resultsNo significant difference was observed in amount of outliers in component alignment between BCR- and CR-TKA. Outliers of the Hip-Knee-Ankle-Axis (HKA-axis) occurred significantly more frequent (P = 0.009) in the BCR-group (37.7%) compared to CR-TKA (18.0%). No clinically relevant differences regarding the predictive sizing of implant components was obtained. No significant differences were observed in revision rates (P = 1.000) and ROM (p = 0.425) between the BCR-groep and CR-group at 2-years FU.

conclusionThis study illustrates that although the HKA-axis was not fully restored, bi-cruciate retaining surgical technique for BCR-TKA is safe and effective with comparable radiological and clinical outcome as CR TKA. Randomized controlled trials with longer follow up on the HKA-axis alignment and clinical parameters are needed to confirm the presented results and should focus on possible cut off values concerning leg axis in order to define in what patients a BCR-TKA can safely be used. LEVEL OF EVIDENCE IV: Retrospective Case Controlled Study.

Indexed as

AlignmentAnterior cruciate ligamentBi-cruciate retaining total knee arthroplastyKnee osteoarthritis

Identifiers

PMID33996459
PMCPMC8105293
OpenAlexW3158369935

What OpenQuestion holds

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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.