Evidence map›Paper›PMID 31579106›Full record

ArticleClinical medicine insights. Arthritis and musculoskeletal disorders2019

Two-Year Results of the PHANTOM High Flex Trial: A Single-Arm Study on the Atlas Unicompartmental Knee System Load Absorber in Patients With Medial Compartment Osteoarthritis of the Knee.

Konrad Slynarski, Jacek Walawski, Robert Smigielski, Willem van der Merwe

Registry-linked trialAbstract read
In one paragraph

Article in Clinical medicine insights. Arthritis and musculoskeletal disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02711254 ([Trial of device that is not approved or cleared by the U.S. FDA]), which is not on this map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–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.

NCT02711254 withheldnot on this map

[Trial of device that is not approved or cleared by the U.S. FDA]

Typen_aSponsor[Redacted]
3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Trial
  2. Review
  3. Implantable Shock Absorber: Breakthrough or Hype?Current reviews in musculoskeletal medicine · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. 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

4 authors.

Konrad SlynarskiLekmed Medical Center, Warsaw, Poland.ORCID https://orcid.org/0000-0001-8674-477X
Jacek WalawskiZagiel Med Hospital, Lublin, Poland.
Robert SmigielskiCarolina Medical Center, Warsaw, Poland.
Willem van der MerweSports Science Institute of South Africa, Cape Town, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Atlas Knee System was designed to fill the gap between no longer effective conservative treatments and more invasive surgery for young patients with medial knee osteoarthritis (OA). This article reports on the 2-year results of a single-arm study of 26 subjects who previously reported favorable clinical outcomes 1 year post implantation. Western Ontario and McMaster Universities Osteoarthritis Index pain and function scores improved by a clinically meaningful amount relative to baseline, and subjects had a return to normal range of motion. This study confirmed that the benefit of a joint unloading device in the management of young patients with medial knee OA is maintained over 2 years. This trial was registered with ClinicalTrials.gov (NCT02711254).

Indexed as

Atlasimplantkneeosteoarthritisunloading

Identifiers

PMID31579106
PMCPMC6757501

What OpenQuestion holds

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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.