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Feasibility study of early prediction of postoperative MRI findings for knee stability after anterior cruciate ligament reconstruction.

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机构： [1]Medical Imaging Department, First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, China. [2]Medical Imaging Department, Yunnan Cancer Hospital &, The Third Affiliated Hospital of Kunming Medical University, Kunming, China

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At present, the most effective and mature treatment after ACL injury and tear is ACL reconstruction, but the rehabilitation process after ACL reconstruction that is very long, so it is very important to find early MRI positive findings of knee instability.We retrospectively collected the clinical and imaging data of 70 patients who underwent ACL reconstruction from January 2016 to December 2019; Based on clinical criteria, the patients were divided into a stable group (n = 57) and an unstable group (n = 13); We measured the MRI imaging evaluation indexes, including the position of the bone tunnel, graft status, and the anatomical factors; Statistical methods were used to compare the differences of imaging evaluation indexes between the two groups; The prediction equation was constructed and ROC curve was used to compare the prediction efficiency of independent prediction factors and prediction equation.There were significant differences in the abnormal position of tibial tunnel entrance, percentage of the position of tibial tunnel entrance, position of tibial tunnel exit, lateral tibial posterior slope (LTPS), width of intercondylar notch between stable knee joint group and unstable knee joint group after ACL reconstruction (P < 0.05); The position of tibial tunnel exits and the lateral tibial posterior slope (LTPS) and the sagittal obliquity of the graft were independent predictors among surgical factors and self-anatomical factors (P < 0.05); The prediction equation of postoperative knee stability was established: Logit(P) = -1.067-0.231*position of tibial tunnel exit + 0.509*lateral tibial posterior slope (LTPS)-2.105*sagittal obliquity of the graft; The prediction equation predicted that the AUC of knee instability was 0.915, the sensitivity was 84.6%, and the specificity was 91.2%.We found that abnormalities of the position of the exit of the bone tunnel, lateral tibial posterior slope (LTPS) and sagittal obliquity of the graft were the early MRI positive findings of knee instability after ACL reconstruction. It is helpful for clinicians to predict the stability of knee joint after ACL reconstruction.© 2021. The Author(s).

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出版当年[2022]版：

大类 | 3 区医学

小类 | 4 区骨科 4 区风湿病学

最新[2023]版：

大类 | 3 区医学

小类 | 3 区骨科 3 区风湿病学

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出版当年[2021]版：

Q3 ORTHOPEDICS Q4 RHEUMATOLOGY

最新[2023]版：

Q2 ORTHOPEDICS Q3 RHEUMATOLOGY

影响因子： 2.2 最新[2023版] 2.6 最新五年平均 2.562 出版当年[2021版] 3.021 出版当年五年平均 2.355 出版前一年[2020版] 2.3 出版后一年[2022版]

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第一作者机构： [1]Medical Imaging Department, First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, China.

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