Evidence map›Paper›PMID 29420232›Full record

Trial reportBMJ open2018

Better outcome from arthroscopic partial meniscectomy than skin incisions only? A sham-controlled randomised trial in patients aged 35-55 years with knee pain and an MRI-verified meniscal tear.

Ewa M Roos, Kristoffer Borbjerg Hare, Sabrina Mai Nielsen, Robin Christensen, L Stefan Lohmander

Registry-linked trialOpen access · goldAbstract readMulticenter StudyRandomized Controlled TrialEquivalence Trial
In one paragraph

Trial report in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01264991 (The Benefit of Arthroscopic Partial Meniscectomy in Middle-Aged Patients - A Double-Blinded Randomized Placebo), which is not on this map. Cited by 19 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 5 pooled it
5.7field-weighted citation impact, top 4% 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.

NCT01264991 naterminatednot on this map

The Benefit of Arthroscopic Partial Meniscectomy in Middle-Aged Patients - A Double-Blinded Randomized Placebo (Sham) Controlled Multi-Centre Trial

TypeinterventionalSponsorSlagelse HospitalRan2011 to 2015Enrolled41ConditionsDegenerative Meniscus TearArmsArthroscopic partial meniscectomy, Sham procedure
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 5 syntheses or guidelines pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Surgical interventions for symptomatic mild to moderate knee osteoarthritis.The Cochrane database of systematic reviews · 2019
    Pooled it
  6. Trial
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Current Controversies in Arthroscopic Partial Meniscectomy.Current reviews in musculoskeletal medicine · 2022
    Review
  14. Article
  15. Article
  16. Knee arthroscopy: evidence for a targeted approach.British journal of sports medicine · 2020
    Article
  17. Article
  18. Article
  19. Review
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

5 authors at 3 institutions in 2 countries.

Ewa M RoosDepartment of Sport and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.ORCID 0000-0001-5425-2199
Kristoffer Borbjerg HareDepartment of Sport and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
Sabrina Mai NielsenMusculoskeletal Statistics Unit, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark.
Robin ChristensenMusculoskeletal Statistics Unit, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark.ORCID 0000-0002-6600-0631
L Stefan LohmanderDepartment of Clinical Sciences Lund, Orthopaedics, Lund University, Lund, Sweden.
Frederiksberg Hospital · DKUniversity of Southern Denmark · DKLund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveCompare arthroscopic partial meniscectomy to a true sham intervention.

methodsSham-controlled superiority trial performed in three county hospitals in Denmark comparing arthroscopic partial meniscectomy to skin incisions only in patients aged 35-55 years with persistent knee pain and an MRI-confirmed medial meniscus lesion. A computer-generated table of random numbers generated two comparison groups. Participants and outcome assessors were blinded to group allocation. Exclusions were locking knees, high-energy trauma or severe osteoarthritis. Outcomes were collected at baseline, 3 and 24 months. We hypothesised no difference between groups. The primary outcome was the between-group difference in change from baseline to 2 years in the mean score across all five normalised Knee injury and Osteoarthritis Outcome Score (KOOS) subscales (KOOS

resultsForty-four patients (of the estimated 72) underwent randomisation; 22 in each group. Sixteen participants (36%) were non-blinded and eight participants (36%) from the sham group crossed over to the surgery group prior to the 2-year follow-up. At 2 years, both groups reported clinically relevant improvements (surgery 21.8, skin incisions only 13.6), the mean difference between groups was 8.2 in favour of surgery, which is slightly less than the cut-off of 10 prespecified to represent a clinically relevant difference; judged by the 95% CI (-3.4 to 19.8), a possibility of clinically relevant difference could not be excluded. In total, nine participants experienced 11 adverse events; six in the surgery group and three in the skin-incisions-only group.

conclusionWe found greater improvement from arthroscopic partial meniscectomy compared with skin incisions only at 2 years, with the statistical uncertainty of the between-group difference including what could be considered clinically relevant. Because of the study being underpowered, nearly half in the sham group being non-blinded and one-third crossing over to surgery, the results cannot be generalised to the greater patient population. TRIAL REGISTRATION NUMBER: NCT01264991.

Indexed as

MeniscectomyAdultArthroscopyFemaleHumansKnee InjuriesMagnetic Resonance ImagingMaleMiddle AgedPainPatient Reported Outcome MeasuresPlacebosSingle-Blind MethodTibial Meniscus InjuriesTreatment OutcomePlacebosadult orthopaedicskneemusculoskeletal disordersorthopaedic sports trauma

Identifiers

PMID29420232
PMCPMC5829931
OpenAlexW2793178449

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.