The goal of this \[type of study: observational study\] is to \[detect concomitant KF and ALL injury in knees with ACL injury using MRI in both adult and pediatric patients and compare the effect of KF injury and multiple risk factors (concomitant injury to the ALL, medial collateral ligament \[MCL\], or anterior, central, or posterior part of the medial or lateral meniscus) on anterolateral rotatory laxity as measured by the pivot-shift test in a clinical setting.\]. The main question \[s\] it aims to answer are: \[Does the main risk factor for a high-grade pivot shift after acute ACL injury differ between pediatric patients and adults?\] \[Does Concomitant KF injury significantly affect the pivot-shift phenomenon in pediatric patients with acute ACL injury?\] Researchers will compare \[71 pediatric patients and 469 adults\] to see if \[main risk factor for a high-grade pivot shift after acute ACL injury differs between pediatric patients and adults?\].
Study Type
OBSERVATIONAL
Enrollment
540
The retrospective study included 540 patients with primary ACL tears (71 pediatric patients and 469 adults) whose MRI examination and pivot-shift test were conducted within 14 days after injury. To detect concomitant KF and ALL injury in knees with ACL injury using MRI in both adult and pediatric patients and compare the effect of KF injury and multiple risk factors on anterolateral rotatory laxity as measured by the pivot-shift test in a clinical setting.
Sichuan Provincial Orthopedic Hospital
Chengdu, Sichuan, China
KF injury
concomitant KF injury or not
Time frame: 3 years
ALL injury
concomitant ALL injury or not
Time frame: 3 years
MCL injury
concomitant MCL injury or not
Time frame: 3 years
Medial meniscus injury
concomitant anterior, central, or posterior part of medial meniscus injury or not
Time frame: 3 years
Lateral meniscus
concomitant anterior, central, or posterior part of lateral meniscus injury or not
Time frame: 3 years
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