Evidence map›Paper›PMID 36324697›Full record

ArticleOrthopaedic journal of sports medicine2022

Reliability of MRI Detection of Kaplan Fiber Injury in Pediatric and Adolescent Patients with ACL Tears.

Brendan Y Shi, Benjamin Levine, Varand Ghazikhanian, Amador Bugarin, Grant Schroeder, Shannon Wu, Thomas Kremen, Kristofer Jones

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Orthopaedic journal of sports medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Association between Kaplan fiber injury and anterolateral tibial subluxation in patients with anterior cruciate ligament injury.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2026
    Article
  2. Review
  3. 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

8 authors.

Brendan Y ShiDepartment of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, California, USA.
Benjamin LevineDepartment of Diagnostic Radiology, University of California, Los Angeles, Los Angeles, California, USA.
Varand GhazikhanianDepartment of Diagnostic Radiology, University of California, Los Angeles, Los Angeles, California, USA.
Amador BugarinDepartment of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, California, USA.
Grant SchroederDepartment of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, California, USA.
Shannon WuDepartment of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, California, USA.
Thomas KremenDepartment of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, California, USA.
Kristofer JonesDepartment of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, California, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: While studies have described Kaplan fiber (KF) injury in up to 60% of adults with anterior cruciate ligament (ACL) tears, the incidence of KF injury in the pediatric and adolescent population remains unknown. Purpose: To (1) determine the reliability of using magnetic resonance imaging (MRI) to identify KF injury in the pediatric and adolescent population and (2) define the incidence of KF injury in these patients with acute ACL injuries. Study Design: Cohort study (diagnosis); Level of evidence, 3. Methods: The authors retrospectively identified patients ≤18 years of age who underwent ACL reconstruction for acute tears between 2013 and 2020. All preoperative MRI scans were reviewed independently and in a blinded fashion by 2 musculoskeletal radiologists, who noted the presence of the KF complex and any evidence of injury; interrater reliability was assessed. Patient characteristics, time from injury to MRI, laterality, and concomitant ligamentous or meniscal injuries were recorded, and associations between patient or injury characteristics and KF integrity on MRI were assessed. Results: In total, 51 patients (mean age, 14.9 years) met the inclusion criteria. Of these, 27 patients were female and 31 sustained an injury to the right knee. With respect to KF integrity, radiologist 1 visualized KF injury in 29% of patients, while radiologist 2 visualized KF injury in 35% of patients. In 12% of cases for radiologist 1 and 6% of cases for radiologist 2, KFs were unable to be visualized at all. The overall percentage agreement between the 2 radiologists was 76.5% with a kappa statistic of 0.57 (moderate agreement). There were no significant associations found between the presence of KF injury and patient age, sex, laterality, body mass index, concomitant ligamentous injury, or meniscal injury. However, visualization of KF injury on MRI was associated with a shorter time from index injury to MRI (15 days vs 23 days; P = .044). Conclusion: Approximately one-third of pediatric and adolescent patients who underwent ACL reconstruction were found to have KF injuries. Standard preoperative MRI scans can reliably be used to visualize KF injury in the majority of pediatric and adolescent patients with ACL tears, especially when the MRI is performed in the acute setting.

Indexed as

anterior cruciate ligamentiliotibial bandkaplan fibersmagnetic resonance imagingpediatric

Identifiers

PMID36324697
PMCPMC9618750

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.