Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 573

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

A system for grading articular cartilage lesions at arthroscopy

Noyes, Frank R., Stabler, Craig L.·1989·The American Journal of Sports Medicine

Abstract

Although there are several different classification sys tems for the description of articular cartilage damage, each has certain limitations and deficiencies which can lead to confusion. We are proposing a new system which describes articular cartilage abnormalities in sim ple terms. It is based on four separate and distinct variables: the description of the articular surface, the extent (depth) of involvement, the diameter of the le sion, and the location of the lesion. Although somewhat qualitative and subjective, the system enables the sur geon to record observed articular cartilage changes. We have used this grading as part of our overall knee rating system and have found it helpful in comparing treatment results between our different studies. For research purposes, a point scaling system facilitates computerization and statistical analysis of the data.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1177/036354658901700410

Cites

5 of 5 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 5 references

Cited by

See all 573

Metadata

Authors
Noyes, F. R., & Stabler, C. L.
Venue
The American Journal of Sports Medicine
Published
1989-07
Volume
17
Issue
4
Pages
505-513
ISSN
  • 0363-5465 (ISSN-L)
  • 1552-3365
OpenAlex
W2032391435
Cited by
573
References
5
FWCI
5.23
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: A system for grading articular cartilage lesions at arthroscopy. https://app.cochat.ai/papers/10.1177/036354658901700410
The paper
Noyes, F. R., & Stabler, C. L. (1989). A system for grading articular cartilage lesions at arthroscopy. The American Journal of Sports Medicine. https://doi.org/10.1177/036354658901700410

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.