Risk Factors for New Meniscal Tears following Anterior Cruciate Ligament Reconstruction

 

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Abstract

This study aims to compare the rate of meniscal tears after anterior cruciate ligament (ACL) reconstruction in patients who have undergone concomitant meniscal repair during the index procedure with that in patients who have not undergone such surgery. It also evaluates other risk factors, such as age, gender, race, body mass index (BMI), site of concomitant meniscal surgery, and ACL graft failure. This is a retrospective study conducted at a large tertiary public hospital. Patients who underwent primary anterior cruciate ligament reconstruction (ACLR) surgery with or without concomitant meniscal repair from 2011 to 2016 were identified. Patients with old meniscal tears and previous meniscal surgeries were excluded. The aforementioned demographical, injury, and surgical details were obtained and analyzed using univariate and multivariate logistic regression analysis. Our study cohort included 754 patients. Primary ACLR surgery was performed with meniscal repair in 172 (22.8%) of the patients, with meniscectomy in 202 (26.8%) of the patients, and without concomitant meniscal surgery in 380 (50.4%) of the patients. A total of 81 (10.7%) patients developed meniscal tears after the index procedure. Such tears occurred in 12.2% (21 of 172) of the patients who had undergone concomitant meniscal repair during the index ACLR, and in 10.3% (60 of 582) of the patients who had not undergone concomitant meniscal repair (p = 0.30). On multivariate analysis, only ACL graft failure was significantly associated with new meniscal tears (p < 0.001, odds ratio 18.69, 95% confidence interval 9.18–38.05). ACL graft failure is the only independent risk factor for meniscal tears after ACLR surgery in our large cohort of patients. Concomitant meniscal repair was not an associated risk factor.

Publication History

Received: 08 February 2020

Accepted: 21 July 2020

Article published online:
08 September 2020

© 2020. Thieme. All rights reserved.

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