Evidence map›Paper›PMID 16284767›Full record

Trial reportSkeletal radiology2006

MR appearance of autologous chondrocyte implantation in the knee: correlation with the knee features and clinical outcome.

Tomoki Takahashi, Bernhard Tins, Iain W McCall, James B Richardson, Katsumasa Takagi, Karen Ashton

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Skeletal radiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–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.

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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. We do not have evidence based methods for the treatment of cartilage defects in the knee.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2011
    Pooled it
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Bone marrow lesions and subchondral bone pathology of the knee.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    Review
  10. Article
  11. Bone marrow edema and results after cartilage repair.Annals of translational medicine · 2015
    Article
  12. Is the clinical outcome after cartilage treatment affected by subchondral bone edema?Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014
    Article
  13. Review
  14. Article
  15. Article
  16. Clinical application of scaffolds for cartilage tissue engineering.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2009
    Review
  17. 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

6 authors.

Tomoki TakahashiDepartment of Radiology & Institute of Orthopaedics, Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Trust, Oswestry, Shropshire, UK.
Bernhard Tins
Iain W McCall
James B Richardson
Katsumasa Takagi
Karen Ashton

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo relate the magnetic resonance imaging (MRI) appearance of autologous chondrocyte implantation (ACI) in the knee in the 1st postoperative year with other knee features on MRI and with clinical outcome. DESIGN AND

methodsForty-nine examinations were performed in 49 patients at 1 year after ACI in the knee. Forty-one preoperative magnetic resonance (MR) examinations were also available. The grafts were assessed for smoothness, thickness in comparison with that of adjacent cartilage, signal intensity, integration to underlying bone and adjacent cartilage, and congruity of subchondral bone. Presence of overgrowth and bone marrow appearance beneath the graft were also assessed. Presence of osteophyte formation, further cartilage defects, appearance of the cruciate ligaments and the menisci were also recorded. An overall graft score was constructed, using the graft appearances. This was correlated with the knee features and the Lysholm score, a clinical self-assessment score. The data were analysed by a Kruskal-Wallis H test followed by a Mann-Whitney U test with Bonferroni correction as post-hoc test.

resultsOf 49 grafts, 32 (65%) demonstrated complete defect filling 1 year postoperatively. General overgrowth was seen in eight grafts (16%), and partial overgrowth in 13 grafts (26%). Bone marrow change underneath the graft was seen; oedema was seen in 23 grafts (47%), cysts in six grafts (12%) and sclerosis in two grafts (4%). Mean graft score was 8.7 (of maximal 12) (95% CI 8.0-9.5). Knees without osteophyte formation or additional other cartilage defects (other than the graft site) had a significantly higher graft score than knees with multiple osteophytes (P=0.0057) or multiple further cartilage defects (P=0.014). At 1 year follow-up improvement in the clinical scores was not significantly different for any subgroup. Knees with a graft score of 8 points or greater had a better improvement of the clinical score than those of 7 points or fewer.

conclusionsAt 1 year follow-up after ACI, higher graft scores are associated with an overall better preserved knee joint. ACI improves the clinical outcome, but there is no statistically significant correlation of graft score and clinical outcome.

Indexed as

AdolescentAdultChondrocytesFemaleHumansKnee JointMagnetic Resonance ImagingMaleMiddle AgedPrognosisReproducibility of ResultsSensitivity and SpecificityStatistics as TopicTransplantation, AutologousTreatment Outcome

Identifiers

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Registered trials

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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.