Evidence map›Paper›PMID 19622791›Full record

ArticleThe American journal of sports medicine2009

In vivo kinematics of the tibiotalar joint after lateral ankle instability.

Adam M Caputo, Jun Y Lee, Chuck E Spritzer, Mark E Easley, James K DeOrio, James A Nunley, Louis E DeFrate

Open access · greenAbstract readValidation Study
In one paragraph

Article in The American journal of sports medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 4% 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

72 citing papers in PubMed, 1 synthesis or guideline pooled it, 183 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Mechanical Contribution of the Anterior Talofibular Ligament to Ankle Stability: 3D Anatomical Finite Element Analysis.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. New insights into chronic ankle instability: anFrontiers in bioengineering and biotechnology · 2025
    Article
  14. Ankle osteoarthritis: Toward new understanding and opportunities for prevention and intervention.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2024
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Observational

12 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

7 authors at 1 institution in 1 country.

Adam M CaputoDivision of Orthopaedic Surgery, Department of Radiology, Duke University, Durham, NC 27710, USA.
Jun Y Lee
Chuck E Spritzer
Mark E Easley
James K DeOrio
James A Nunley
Louis E DeFrate
Duke University Hospital · US

Funding

The In Vivo Biomechanics of Lateral Ankle Ligament Injury and ReconstructionR03AR055659 · NIAMS · DUKE UNIVERSITY · PI DEFRATE, LOUIS E. · 2008 to 2010
$233k
NIAMS NIH HHS R03 AR055659
6 · The paper itself

Abstract

backgroundPrevious studies have suggested that injury to the anterior talofibular ligament (ATFL) may be linked to altered kinematics and the development of osteoarthritis of the ankle joint. However, the effects of ATFL injury on the in vivo kinematics of the ankle joint are unclear. HYPOTHESIS: Based on the orientation of the ATFL fibers, ATFL deficiency leads to increased anterior translation and increased internal rotation of the talus relative to the tibia. STUDY

designDescriptive laboratory study.

methodsThe ankles of 9 patients with unilateral ATFL injuries were compared as they stepped onto a level surface. Kinematic measurements were made as a function of increasing load. With use of magnetic resonance imaging and orthogonal fluoroscopy, the in vivo kinematics of the tibiotalar joint were measured in the ATFL-deficient and intact ankles of the same individuals.

resultsA statistically significant increase in internal rotation, anterior translation, and superior translation of the talus was measured in ATFL-deficient ankles, as compared with the intact contralateral controls. For example, at 100% body weight, ATFL-deficient ankles demonstrated an increase of 0.9 +/- 0.5 mm in anterior translation (P = .008), an increase of 5.7 degrees +/- 3.6 degrees in internal rotation (P = .008), and a slight increase of 0.2 +/- 0.2 mm in the superior translation (P = .02) relative to the intact contralateral ankles.

conclusionDeficiency of the ATFL increases anterior translation, internal rotation, and superior translation of the talus. CLINICAL RELEVANCE: Altered kinematics may contribute to the degenerative changes observed with chronic lateral ankle instability. These findings might help to explain the degenerative changes frequently observed on the medial talus in patients with chronic ATFL insufficiency and so provide a baseline for improving ankle ligament reconstructions aimed at restoring normal joint motion.

Indexed as

AdultAnkle InjuriesAnkle JointBiomechanical PhenomenaFemaleFluoroscopyHumansJoint InstabilityLigaments, ArticularMagnetic Resonance ImagingMaleMiddle AgedRotationTalusYoung Adult

Identifiers

PMID19622791
PMCPMC2891039
OpenAlexW2119766390

What OpenQuestion holds

Textmetadata
LicenceTDM
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.