Evidence map›Paper›PMID 17446239›Full record

ArticleAnnals of the rheumatic diseases2007

Neurovascular invasion at the osteochondral junction and in osteophytes in osteoarthritis.

Sunita Suri, Sarah E Gill, Sally Massena de Camin, Deborah Wilson, Daniel F McWilliams, David A Walsh

Open access · greenAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 214 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
214citing papers in PubMed, 2 pooled it
6.6field-weighted citation impact, top 3% 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

214 citing papers in PubMed, 2 syntheses or guidelines pooled it, 404 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Emerging therapies for knee osteoarthritis.Nature reviews. Rheumatology · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
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  12. The complexity of pain in osteoarthritis.Nature reviews. Rheumatology · 2026
    Review
  13. Review
  14. Article
  15. Article
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  17. Article
  18. Human Knee as an Organ: Joint Tissue Collection, Processing, and Scoring for Multimodal Analyses.Laboratory investigation; a journal of technical methods and pathology · 2026
    Review
  19. Transcriptomics in the Study of Bone and Cartilage.Current osteoporosis reports · 2026
    Review
  20. Review

154 more citing papers are in PubMed but not listed here.

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

6 authors at 3 institutions in 1 country.

Sunita SuriAcademic Rheumatology, University of Nottingham, City Hospital, Hucknall Road, Nottingham, Notts NG5 1PB, UK.
Sarah E Gill
Sally Massena de Camin
Deborah Wilson
Daniel F McWilliams
David A Walsh
Nottingham City Hospital · GBUniversity of Nottingham · GBKings Mill Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNormal adult articular cartilage is thought to be avascular and aneural.

objectiveTo describe neurovascular structures at the osteochondral junction and in osteophytes in tibiofemoral osteoarthritis (OA) displaying a range of severity of cartilage changes.

methodsArticular surfaces were obtained from 40 patients at total knee joint replacement surgery for tibiofemoral OA (TKR) and seven patients post mortem (PM). Antibodies directed against CD34 (vascular endothelium), protein gene product 9.5 (pan-neuronal marker), substance P and calcitonin gene-related peptide (sensory nerves) and C-flanking peptide of neuropeptide Y (sympathetic nerves) were used to localise blood vessels and nerves by immunohistochemistry. Severity of OA cartilage changes was graded histologically.

resultsTKR and PM samples displayed a range of OA cartilage changes including tidemark breaching by vascular channels. Sympathetic and sensory nerves were both present within vascular channels in the articular cartilage, in both mild and severe OA. Perivascular and free nerve fibres, and nerve trunks were observed within the subchondral bone marrow and within the marrow cavities of osteophytes. Sensory and sympathetic nerves displayed similar distributions in each region studied.

conclusionVascularisation and the associated innervation of articular cartilage may contribute to tibiofemoral pain in OA across a wide range of structural disease severity.

Indexed as

AgedAged, 80 and overCalcitonin Gene-Related PeptideCartilage, ArticularFemaleHumansKnee JointMaleNeovascularization, PathologicNerve FibersOsteoarthritis, KneePeripheral Nervous SystemSeverity of Illness IndexSubstance PUbiquitin ThiolesteraseCalcitonin Gene-Related PeptideSubstance PUbiquitin ThiolesteraseUCHL1 protein, human

Identifiers

PMID17446239
PMCPMC2111605
OpenAlexW2106478572

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.