Evidence map›Paper›PMID 26611902›Full record

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

Five-year experience of cementless Oxford unicompartmental knee replacement.

H G Pandit, S Campi, T W Hamilton, O D Dada, S Pollalis, C Jenkins, C A F Dodd, D W Murray

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 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Cementless fixation in medial unicompartmental knee arthroplasty: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. [Multivariate analysis of varus after Oxford unicompartmental knee arthroplasty].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2021
    Article
  11. Review
  12. Review
  13. Long-termBone & joint research · 2019
    Article
  14. Article
  15. Cementless versus cemented Oxford unicompartmental knee arthroplasty: early results of a non-designer user group.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Article
  16. 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.

H G PanditNuffield Orthopaedic Centre, Windmill Road, Oxford, UK.
S CampiNuffield Department for Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Windmill Road, Oxford, UK.
T W HamiltonNuffield Department for Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Windmill Road, Oxford, UK. thomas.hamilton@ndorms.ox.ac.uk.
O D DadaNuffield Orthopaedic Centre, Windmill Road, Oxford, UK.
S PollalisNuffield Orthopaedic Centre, Windmill Road, Oxford, UK.
C JenkinsNuffield Orthopaedic Centre, Windmill Road, Oxford, UK.
C A F DoddNuffield Orthopaedic Centre, Windmill Road, Oxford, UK.
D W MurrayNuffield Orthopaedic Centre, Windmill Road, Oxford, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCementless unicompartmental knee replacement (UKR) was introduced to address some of the problems that can occur following cemented UKR. The aim of this study was to report the 5-year experience of the first 512 medial cementless Oxford UKR implanted by two surgeons for the recommended indications.

methodsThe first consecutive 512 cementless Phase 3 Oxford UKRs implanted by two surgeons for the recommended indications between June 2004 and October 2013 were prospectively identified and followed up independently. All the procedures were carried out through a minimally invasive approach without eversion or dislocation of the patella. Patients were assessed clinically pre-operatively and at 1, 2, 5, 7 and 10 years after surgery with functional outcome scores and radiographs.

resultsThere were eight reoperations of which six were revisions giving a 5-year survival of 98 % (95 % CI 94-100 %). At a mean follow-up of 3.4 years (1.0-10.2), the mean OKS was 43 (SD 7), AKSS (objective) was 81 (SD 13), and AKSS (functional) was 86 (SD 17). The first 120 cases had a minimum follow-up of 5 years (mean 5.9; range 5-10.2). In these patients, the mean OKS was 41 (SD 8), AKSS (objective) was 81 (SD 14), and AKSS (functional) was 82 (SD 18). There were no femoral radiolucencies and no complete tibial radiolucencies. 11 % of tibial components had partial radiolucent lines; the remaining 89 % had no radiolucencies.

conclusionThe clinical results are as good as or better than those previously reported for cemented fixation. The radiographic results are better with secure bony attachment to the implants in every case. LEVEL OF EVIDENCE: IV.

Indexed as

Knee ProsthesisProsthesis DesignAdultAgedAged, 80 and overArthroplasty, Replacement, KneeBone CementsCohort StudiesFemaleFemurHumansMaleMiddle AgedOsteoarthritis, KneePatellaPostoperative ComplicationsBone CementsCementless fixationFunctional outcomeImplant survivalUnicompartmental knee replacement

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Registered trials

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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.