Wang Y, Dong Q R, Xu J M, Pang H Q, Jin Z G, Zhu J B, Tian J J
Department of Radiology, Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou 215153, China.
Department of Orthopedics, the Second Affiliated Hospital of SoochowUniversity, Suzhou 215004, China.
Zhonghua Yi Xue Za Zhi. 2019 Jul 16;99(27):2130-2134. doi: 10.3760/cma.j.issn.0376-2491.2019.24.007.
To investigate the application value of the weight-bearing magnetic resonance imaging (MRI) in evaluating the stability of knee joint after anterior cruciate ligament reconstruction. From July 2011 to August 2013, a total of 25 patients with anterior cruciate ligament rupture and reconstruction surgery in the Second Affiliated Hospital of Soochow University were enrolled in this study, including 18 males and 7 females, with an average age of (32±5) years. All the patients underwent the weight-bearing MRI, knee joint passive relaxation test (Kneelax 3), and Lysholm score before the surgery and 3 and 6 months after the surgery. The three examinations before and after the operation were analyzed by repeated measures of general linear model, and paired test was used to compare the results before and after the operation. The correlation between the three preoperative examinations was statistically analyzed. The relaxation data measured by Kneelax 3 after the surgery was significantly lower than that before the operation [(1.1±0.9) mm vs (6.1±1.3) mm, 16.9, 0.01]. The post-operative lateral tibial plateau anterior shift score was less than the pre-operative score [(3.0±0.7) mm vs (4.8±1.2) mm, 6.2, 0.01]. The post-operative Lysholm score was significantly higher than that before the operation (89±6 vs 64±14, -8.3, 0.05). There was a negative correlation between the anterior displacement of the lateral platform and Lysholm score (-0.902, 0.01). There was no correlation between anterior displacement and passive relaxation of the lateral platform in preoperative weight-bearing MRI. Anterior cruciate ligament reconstruction can improve the knee stability. The stability of knee joint can be evaluated by weight-bearing MRI. The anterior tibial displacement measured by the weight-bearing MRI is correlated with the clinical score.
探讨负重磁共振成像（MRI）在评估前交叉韧带重建术后膝关节稳定性中的应用价值。2011年7月至2013年8月，苏州大学附属第二医院共有25例前交叉韧带断裂并接受重建手术的患者纳入本研究，其中男性18例，女性7例，平均年龄（32±5）岁。所有患者在手术前、术后3个月和6个月均接受负重MRI、膝关节被动松弛试验（Kneelax 3）和Lysholm评分。采用重复测量的一般线性模型对手术前后的三项检查进行分析，采用配对检验比较手术前后的结果。对术前三项检查的相关性进行统计学分析。术后Kneelax 3测量的松弛数据明显低于术前[（1.1±0.9）mm对（6.1±1.3）mm，P = 16.9，0.01]。术后胫骨外侧平台前移评分低于术前[（3.0±0.7）mm对（4.8±1.2）mm，P = 6.2，0.01]。术后Lysholm评分明显高于术前（89±6对64±14，P = -8.3，0.05）。外侧平台前移与Lysholm评分呈负相关（-0.902，0.01）。术前负重MRI中外侧平台前移与被动松弛之间无相关性。前交叉韧带重建可提高膝关节稳定性。负重MRI可评估膝关节稳定性。负重MRI测量的胫骨前移与临床评分相关。
