Evidence map›Paper›PMID 30465099›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019

Minimally invasive Oxford unicompartmental knee arthroplasty ensures excellent functional outcome and high survivorship in the long term.

Tilman Walker, Pit Hetto, Thomas Bruckner, Tobias Gotterbarm, Christian Merle, Benjamin Panzram, Moritz M Innmann, Babak Moradi

Abstract read
PubMed Publisher
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 4 pooled it
6.2field-weighted citation impact, top 3% 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, 4 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. St Georg Sled medial unicompartmental arthroplasty: survivorship analysis and function at 20 years follow up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Article
  14. Article
  15. Article
  16. Prior high tibial osteotomy is not a contraindication for medial unicompartmental knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  17. Article
  18. Article
  19. Review
  20. 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

8 authors at 3 institutions in 3 countries.

Tilman WalkerCenter for Orthopaedics and Trauma Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118, Heidelberg, Germany.
Pit HettoCenter for Orthopaedics and Trauma Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118, Heidelberg, Germany.
Thomas BrucknerInstitute of Medical Biometry and Informatics, University of Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany.
Tobias GotterbarmCenter for Orthopaedics and Trauma surgery, University of Linz, Krankenhausstr. 7a, 4020, Linz, Austria.
Christian MerleCenter for Orthopaedics and Trauma Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118, Heidelberg, Germany.
Benjamin PanzramCenter for Orthopaedics and Trauma Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118, Heidelberg, Germany.
Moritz M InnmannCenter for Orthopaedics and Trauma Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118, Heidelberg, Germany.
Babak MoradiCenter for Orthopaedics and Trauma Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118, Heidelberg, Germany. babak.moradi@med.uni-heidelberg.de.ORCID http://orcid.org/0000-0003-1714-2171
Heidelberg University · DEKrankenhaus der Elisabethinen · ATZimmer Biomet (Netherlands) · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWhether unicompartimental or total knee arthroplasty is superior for treatment of anteromedial knee osteoarthritis, is still uncertain. Therefore, the purpose of this study was to evaluate clinical and radiological outcome as well as long-term survivorship of medial Oxford unicompartmental knee arthroplasty (OUKA) at an independent center with a minimum follow-up of 10 years.

methodsThis single-center retrospective cohort study reports the 10-15 years follow-up results of 113 consecutive patients (126 knees) after medial OUKA. Survivorship analysis was performed with several different endpoints and clinical outcome was measured using the Oxford Knee Score (OKS), American Knee Society Score (AKSS-O), range of motion (ROM), Tegner activity score and UCLA score. Radiological analysis was performed with focus on progression of arthritis in the lateral compartment.

resultsA total of 16 patients (16 knees) underwent revision surgery resulting in a survival rate of 92.4% at 10 years and 88.6% at 15 years with the endpoint device-related revisions. The main reason for revision surgery was progression of arthritis in five patients (31.3%) followed by persistency of pain in three patients (18.7%). Clinical outcome was good to excellent with an OKS of 39.9 at 11 years, an AKSS-O of 89.3 and a mean range of motion of 122°. The radiological analysis revealed a significant progression of degenerative changes in the lateral compartment, however without any impact on the functional outcome.

conclusionOxford UKA of the medial compartment ensures good long-term survivorship with an excellent functional outcome. Therefore, the results of this study support the continued use of OUKA in patients with anteromedial osteoarthritis. LEVEL OF EVIDENCE: Retrospective cohort study, Level III.

Indexed as

Knee ProsthesisProsthesis FailureAdultAgedAged, 80 and overArthroplasty, Replacement, KneeDisease ProgressionFemaleFollow-Up StudiesHumansKnee JointMaleMiddle AgedMinimally Invasive Surgical ProceduresOsteoarthritis, KneePainKnee arthroplastyMedial unicondylar knee arthroplastyMobile bearingOxford kneeUKA, UKR, long term survivorship

Identifiers

PMID30465099
OpenAlexW2900980830

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.