Anterior Tibial Subluxation of Lateral Compartment Is Associated With High-Grade Rotatory Instability for Acute But Not Chronic Anterior Cruciate Ligament Injuries: An Magnetic Resonance Imaging Case-Control Study
Anterior Tibial Subluxation of Lateral Compartment Is Associated With High-Grade Rotatory Instability for Acute But Not Chronic Anterior Cruciate Ligament Injuries: An Magnetic Resonance Imaging Case-Control Study
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DOI：
10.1016/j.arthro.2022.04.012
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发表时间：
2022-10-01
影响因子：
4.7
通讯作者：
Wu, Haobo
中科院分区：
文献类型：
--
作者：
Liu, An;Cui, Wushi;Wu, Haobo
Purpose: To investigate whether anterior tibial subluxation obtained from magnetic resonance imaging (MRI) could be a predictor of high-grade rotatory instability for anterior cruciate ligament (ACL) injuries, including acute and chronic cases. Methods: From September 2016 to August 2018, we retrospectively investigated 163 patients with ACL injuries who subsequently underwent primaryACL reconstruction. Among them, 30 patients with high-grade rotatory instability (grade II/ III pivot shift) were included in the high-grade group, and their age and sex were matched 1:2 to low-grade cases (.05). Moreover, high-grade anterior tibial subluxation of lateral compartment (>= 6mm) was found to be an independent predictor (odds ratio, 12.992; P 1/4 .011) associated with concomitant meniscal tears after ACL injuries. Anterior tibial subluxation of lateral compartment demonstrated statistical significance between the two groupswhen comparing subgroups within 3months but not beyond 3months. Conclusion: InACL-injured patients, high-grade anterior tibial subluxation of lateral compartment (>= 6 mm) could be a unique predictor of high-grade knee rotatory instability for acute but not chronic injuries. Prolonged time from injury to surgery and lateral meniscus tears were risk factors for high-grade rotatory laxity in chronic patients. Level of Evidence: Level III, retrospective prognostic trial.
