Evidence map›Paper›PMID 23851969›Full record

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

No difference between computer-assisted and conventional total knee arthroplasty: five-year results of a prospective randomised study.

Jörg Lützner, Julian Dexel, Stephan Kirschner

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 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. No differences in mid- to long-term outcomes of computer-assisted navigation versus conventional total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Computer-Assisted Orthopedic and Trauma Surgery.Deutsches Arzteblatt international · 2020
    Trial
  7. Trial
  8. Trial
  9. Trial
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Clinical outcome of increased flexion gap after total knee arthroplasty. Can controlled gap imbalance improve knee flexion?Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Article
  19. No differences in functional results and quality of life after single-radius or multiradius TKA.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    Article
  20. Computer-assisted navigation is beneficial both in primary and revision surgery with modular rotating-hinge knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    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

3 authors.

Jörg LütznerDepartment of Orthopaedic Surgery, University Hospital Carl Gustav Carus, Medical Faculty of the Technical University of Dresden, Fetscherstr. 74, 01307, Dresden, Germany, Joerg.Luetzner@uniklinikum-dresden.de.
Julian Dexel
Stephan Kirschner

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe use of computer-assisted surgery (CAS) in total knee arthroplasty (TKA) results in better limb and implant alignment compared to conventional TKA; however, it is unclear whether this translates to better mid- to long-term clinical outcome. This prospective randomised study comparing CAS and conventional TKA reports the functional and patient perceived outcomes at a follow-up of 5 years. The hypothesis was that there would be a difference in functional outcome or quality of life after mid-term follow-up.

methodsSixty-seven patients were available for physical and radiological examination at 5 years. The Knee Society Score (KSS) was used to describe functional outcome and the Euroquol questionnaire for quality of life.

resultsThe mean total KSS for the CAS group improved from 91.1 (SD 22.3) points preoperatively to 157.4 (SD 21.9) and 150.2 (SD 30.4) points at 2 and 5 years, respectively. In the conventional group, the mean total KSS was 99.6 (SD 18.6) points preoperatively and 151.1 (SD 26.0) and 149.0 (SD 28.0) points at 2 and 5 years, respectively. The mean quality of life score improved from 48.2 (SD 16.5) points preoperatively to 67.4 (SD 16.3) and 66.8 (SD 22.2) points at 2 and 5 years in the CAS group, and from 52.2 (SD 17.1) points preoperatively to 65.6 (SD 14.6) and 61.7 (SD 19.3) points at 2 and 5 years, respectively, in the conventional TKA group. These differences were not statistically significant. There were radiolucent lines up to 2 mm in 11 knees (four CAS, seven conventional), but there were no changes in implant position.

conclusionsThere were no significant differences in functional or patient perceived outcome after mid-term follow-up in this study. LEVEL OF EVIDENCE: I.

Indexed as

Quality of LifeRecovery of FunctionAgedArthroplasty, Replacement, KneeBone MalalignmentFemaleFollow-Up StudiesHealth Status IndicatorsHumansMaleMiddle AgedPostoperative ComplicationsPreoperative CareProspective StudiesSurgery, Computer-AssistedSurveys and Questionnaires

Identifiers

PMID23851969

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.