Evidence map›Paper›PMID 22474634›Full record

ArticleWorld journal of orthopedics2011

Effectiveness of exercise for osteoarthritis of the knee: A review of the literature.

Jun Iwamoto, Yoshihiro Sato, Tsuyoshi Takeda, Hideo Matsumoto

RetractedOpen access · hybridAbstract readRetracted Publication
In one paragraph

Article in World journal of orthopedics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
3.9field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 95 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Journal of microbiology and biotechnology · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Retraction note to four articles published inWorld journal of orthopedics · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Manual physical therapy and perturbation exercises in knee osteoarthritis.The Journal of manual & manipulative therapy · 2013
    Article
  17. The pain-relieving qualities of exercise in knee osteoarthritis.Open access rheumatology : research and reviews · 2013
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Jun IwamotoJun Iwamoto, Tsuyoshi Takeda, Hideo Matsumoto, Institute for Integrated Sports Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo 160-8582, Japan.
Yoshihiro Sato
Tsuyoshi Takeda
Hideo Matsumoto
Keio University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteoarthritis (OA) of the knee is the most common type of arthritis and the major cause of chronic musculoskeletal pain and mobility disability in the elderly. The objective of this paper is to discuss the effectiveness of exercise for OA of the knee based on a review of the literature. We reviewed the relevant literature, i.e. systematic reviews and meta-analyses searched using PubMed. Muscle strengthening and aerobic exercises are effective in reducing pain and improving physical function in patients with mild to moderate OA of the knee.

Indexed as

HamstringsMuscle strengthening exerciseOsteoarthritis of the kneeQuadriceps

Identifiers

PMID22474634
PMCPMC3302040
OpenAlexW1967407439

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.