In patients with ACL injuries, a greater side-to-side variat
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The aim of this study was to look into the factors that affect the prevalence of medial and lateral meniscal injuries during anterior cruciate ligament (ACL) reconstruction in ACL injury patients.

Patients with ACL injuries at 9 institutions were enrolled in this multicentre study. Age, sex, duration between injury and surgery, pivot shift test grade, anterior knee laxity determined using the Kneelax 3 arthrometer, and other variables were assessed by logistic regression analysis. Meniscal conditions were evaluated via arthroscopy. In all, 830 patients were enrolled.

Results:
--The prevalence of medial and lateral meniscal tears was 32.0% and 26.5%, respectively.

--Significant factors that influenced the prevalence of medial meniscal injuries were age , side-to-side differences in instrumented anterior knee laxity before surgery, duration between injury and surgery (more than?12 months), and pivot shift test grade.

--Significant factors of lateral meniscal injury were side-to-side differences in anterior knee laxity before surgery (OR 1.12) and the male sex (OR 1.50).

In conclusion, medial meniscal injury was predicted by greater anterior knee laxity, age, a longer time between injury and surgery, and a higher pivot shift test grade. A lateral meniscal injury was predicted by greater anterior knee laxity and male sex. The relevance of side-to-side variations in anterior knee laxity in patients with ACL injuries should be rediscovered from the perspective of meniscal conditions.

Source: https://link.springer.com/article/10.1007/s00167-021-06601-z
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