AI Article Synopsis
- The study examines the impact of Kaplan fibers (KFs) and anterolateral ligament injuries on knee stability during acute ACL injuries, particularly analyzing the pivot-shift test results in both adults and adolescents.
- It included 540 patients with ACL tears and found that while adults’ high-grade pivot shifts were mainly linked to anterolateral ligament disruption, adolescents’ were significantly associated with KF injuries.
- The findings suggest that KF injuries in adolescents serve as substantial indicators for increased knee instability post-ACL injury, contrasting with adults where other factors are more influential.
Article Abstract
Background: Studies have shown that Kaplan fibers (KFs) play a role in controlling anterolateral rotatory knee laxity in anterior cruciate ligament (ACL) injury. However, recent clinical studies have suggested that KF injuries are not associated with a higher-grade pivot shift in knees with acute ACL injuries.
Purpose: To compare the effect of KF and anterolateral ligament injury on anterolateral rotatory laxity as measured by the pivot-shift test in both adult and adolescent patients with acute ACL injury.
Study Design: Cross-sectional study; Level of evidence, 3.
Methods: This study consisted of patients who experienced primary acute ACL tears between January 2019 and December 2021. The magnetic resonance imaging examinations and pivot-shift tests for these individuals were conducted within 14 days after injury. Variables associated with concomitant injury were included in a binary logistic regression model to evaluate risk factors of a high-grade pivot shift and a KF injury.
Results: The study included 540 patients with acute ACL tears (64 adolescent patients and 476 adults). The main risk factor for a high-grade pivot shift after acute ACL injury in adults was partial or total disruption of anterolateral ligament continuity (odds ratio [OR], 2.271; 95% CI, 1.499-3.442). In adolescent patients, the main risk factor was KF injury (OR, 19.98; 95% CI, 2.367-168.669), including edema and disruption of continuity.
Conclusion: The main risk factor for a high-grade pivot shift after acute ACL injury differs between adolescent patients and adults: the KF injury sign in adolescent patients indicates a higher-grade pivot shift.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11542136 | PMC |
| http://dx.doi.org/10.1177/23259671241288250 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!