Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 462

The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.

Incidence of Subsequent Injury to Either Knee within 5 Years after Anterior Cruciate Ligament Reconstruction with Patellar Tendon Autograft

Shelbourne, K. Donald, Gray, Tinker, Haro, Marc·2009·The American Journal of Sports Medicine

Abstract

Background: The risk of subsequent anterior cruciate ligament injury to either knee after surgery based on sex, age, and activity has not been extensively studied. Hypotheses: Women have a higher incidence of anterior cruciate ligament injury to the contralateral knee after surgery than men but do not have a difference in injuries to the reconstructed knee. Young, competitive athletes have a higher incidence of injury than older patients. The time to return to full activities does not affect injury rate. Study Design: Cohort study (prognosis); Level of evidence, 2. Methods: The authors prospectively followed 1820 patients after primary anterior cruciate ligament reconstruction to determine if patients suffered an injury to either knee within 5 years after surgery. Subsequent injury was evaluated based on sex, age, and activity level. Results: Minimum 5-year follow-up was obtained on 1415 patients (78%). Seventy-five patients (5.3%) had an injury to the contralateral knee, and 61 patients (4.3%) suffered an injury to the reconstructed knee (P =. 2185). Women suffered more injuries (7.8%) to the contralateral normal knee than men (3.7%; P <. 001) but not more injuries to the reconstructed knee (4.3% vs 4.1%; P =. 5543). The risk of subsequent injury to either knee was 17% for patients <18 years old, 7% for patients aged 18 to 25 years, and 4% for patients older than 25 years. There was no difference in injury rate between patients who returned before and after 6 months postoperatively. Conclusion: Women have a higher incidence of anterior cruciate ligament injury to the contralateral knee than men after reconstruction. The incidence of injury to either knee after reconstruction is associated with younger age and higher activity level, but returning to full activities before 6 months postoperatively does not increase the risk of subsequent injury.

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 · 10.1177/0363546508325665

Cites

15 of 15 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 15 references

Cited by

See all 462

Metadata

Authors
Shelbourne, K. D., Gray, T., & Haro, M.
Venue
The American Journal of Sports Medicine
Published
2008-12-24
Volume
37
Issue
2
Pages
246-251
ISSN
  • 0363-5465 (ISSN-L)
  • 1552-3365
OpenAlex
W2017633341
Cited by
462
References
15
FWCI
10.02
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: Incidence of Subsequent Injury to Either Knee within 5 Years after Anterior Cruciate Ligament Reconstruction with Patellar Tendon Autograft. https://app.cochat.ai/papers/10.1177/0363546508325665
The paper
Shelbourne, K. D., Gray, T., & Haro, M. (2009). Incidence of Subsequent Injury to Either Knee within 5 Years after Anterior Cruciate Ligament Reconstruction with Patellar Tendon Autograft. The American Journal of Sports Medicine. https://doi.org/10.1177/0363546508325665

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.