Evidence map›Paper›PMID 29713967›Full record

SynthesisClinical rheumatology2018

Effects of glucosamine in patients with osteoarthritis of the knee: a systematic review and meta-analysis.

Toru Ogata, Yuki Ideno, Masami Akai, Atsushi Seichi, Hiroshi Hagino, Tsutomu Iwaya, Toru Doi, Keiko Yamada, Ai-Zhen Chen, Yingzi Li and 1 more

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Clinical rheumatology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
7.3field-weighted citation impact, top 2% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 70 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Article
  6. Comprehensive Research Progress on Glucosamine: A Review.Applied biochemistry and biotechnology · 2026
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Geroprotectors and Skeletal Health: Beyond the Headlines.Frontiers in cell and developmental biology · 2022
    Review
  16. Review
  17. Review
  18. Review
  19. Article
  20. Experimental Therapeutics for the Treatment of Osteoarthritis.Journal of experimental pharmacology · 2021
    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

11 authors at 7 institutions in 1 country.

Toru OgataNational Rehabilitation Center for Persons with Disabilities, 4-1, Namiki, Tokorozawa, Saitama, Japan.
Yuki IdenoGunma University Initiative for Advanced Research, 39-15, Showa-cho, Maebashi, Gunma, Japan.
Masami AkaiInternational University of Health and Welfare, 1-3-3, Minamiaoyama, Minato-ku, Tokyo, Japan.
Atsushi SeichiDepartment of Orthopaedic Surgery, Mitsui Memorial Hospital, 1, Kandaizumi-cho, Chiyoda-ku, Tokyo, Japan.
Hiroshi HaginoRehabilitation Division, Tottori University Hospital, 36-1, Nishimachi, Yonagoshi, Tottori, Japan.
Tsutomu IwayaNagano University of Health & Medicine, 11-1, Imaihara, Kawanakajimacho, Naganoshi, Nagano, Japan.
Toru DoiNational Rehabilitation Center for Persons with Disabilities, 4-1, Namiki, Tokorozawa, Saitama, Japan.
Keiko YamadaDepartment of Orthopaedic Surgery, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan.
Ai-Zhen ChenSchool of Health Sciences, Gunma University, 39-15, Showa-cho, Maebashi, Gunma, Japan.
Yingzi LiNPO International Eco-Health Research Group, 133-4, Horiguchicho, Isesakishi, Gunma, Japan.
Kunihiko HayashiSchool of Health Sciences, Gunma University, 39-15, Showa-cho, Maebashi, Gunma, Japan. khayashi@gunma-u.ac.jp.
Gunma University · JPThe University of Tokyo · JPInternational University of Health and Welfare · JPMitsui Memorial Hospital · JPNagano University of Health and Medicine · JPNational Rehabilitation Center for Persons with Disabilities · JPTottori University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteoarthritis (OA) of the knee is one of the main causes of mobility decline in the elderly. Non-surgical treatments such as administration of supplements to strengthen the joint cartilage matrix have become popular not only for pain relief but also for joint preservation. Glucosamine has been used in many countries based on the increasing evidence of its effectiveness for OA. Although there are many previous studies and systematic reviews, the findings vary and different conclusions have been drawn. We aimed to review recent randomized controlled trials on glucosamine for knee OA to reveal up-to-date findings about this supplement. We also performed a meta-analysis of some of the outcomes to overcome the unsolved bias in each study. Eighteen articles written between 2003 and 2016 were analyzed. Many used visual analogue scale (VAS) pain scores and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), which were assessed in our meta-analysis. We found a marginally favorable effect of glucosamine on VAS pain scores. The effect on knee function, as measured by the WOMAC, was small and not significant. A newly established knee OA scale, the Japanese Knee Osteoarthritis Measure (JKOM), is commonly used in Japan. Although the number of subjects was small, the JKOM meta-analysis indicated that glucosamine is superior to a placebo in alleviating knee OA symptoms. Given this, we concluded that glucosamine has the potential to alleviate knee OA pain. Further studies are needed to evaluate the effect of glucosamine on knee function and joint preservation, as well as to evaluate the combined effect with other components, such as chondroitin.

Indexed as

ArthralgiaGlucosamineHumansJapanKnee JointOsteoarthritis, KneePain MeasurementRandomized Controlled Trials as TopicTreatment OutcomeGlucosamineGlucosamineKnee OAOsteoarthritisWOMAC

Identifiers

PMID29713967
PMCPMC6097075
OpenAlexW2802366526

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.