前交叉韧带损伤患者核磁共振的定性诊断与定量指标分析探讨

Qualitative Diagnosis and Quantitative Index Analysis of Magnetic Resonance Imaging in Patients with Anterior Cruciate Ligament Injury

目的:探讨前交叉韧带损伤患者核磁共振的定性诊断与定量指标。方法:选择2020年4月-2022年12月我院收治的102例膝关节前交叉韧带损伤患者作为损伤组,同时在相同的时间段内收集102例来我院进行体检的受检者作为健康组,2组都进行膝关节的核磁共振成像诊断与评价,分析膝关节功能评分与核磁共振影像学特点的相关性。结果:损伤组102例患者术后的Lyshlom评分为(80.33±2.12)分,膝关节不稳定发生率为19.4%,健康组Lyshlom评分为(95.33±1.91)分,2组Lyshlom评分对比,差异有统计学意义(P<0.05)。在损伤组102例患者中,内口位置正确98例,异常4例,异常率为3.9%。在损伤组102例患者中,82例膝关节稳定患者术后3个月的股骨、胫骨骨隧道扩大率分别为(25.13±1.48)%、(25.17±2.14)%;20例膝关节不稳定患者术后3个月的股骨、胫骨骨隧道扩大率分别为(25.32±1.01)%、(25.04±1.82)%,组内对比,差异无统计学意义(P>0.05)。健康组膝关节前交叉韧带平均T2值为(23.11±1.66),损伤组中的膝关节稳定患者术后3个月重建移植物平均T2值为(28.53±1.74),膝关节不稳定患者术后3个月重建移植物平均T2值为(32.43±2.04),3组T2值对比,差异有统计学意义(P<0.05)。结论:核磁共振能很好显示前交叉韧带重建术后膝关节稳定性的影像学特点,能敏感地反映膝关节骨隧道与前交叉韧带情况,对评价膝关节稳定性具有很好的临床指导价值。

Objective:To explore the qualitative diagnosis and quantitative indicators of magnetic resonance imaging in patients with anterior cruciate ligament injury.Methods:102 patients with anterior cruciate ligament injury of the knee joint admitted to our hospital from April 2020 to December 2022 were selected as the injury group,at the same time,102 subjects who came to our hospital for physical examinations were collected as the health group during the same time period.Both groups underwent MRI diagnosis and evaluation of the knee joint,analyzing the correlation between knee joint function score and MRI imaging characteristics.Results:The postoperative Lyshlom score of 102 patients in the injury group was(80.33±2.12)points,and the incidence of knee instability was 19.4%.The Lyshlom score of the healthy group was(95.33±1.91)points.Comparison of Lyshlom scores between the two groups,the differences was statistically significant(P<0.05).Among the 102 patients in the injury group,98 cases had correct internal mouth position and 4 cases were abnormal,with an abnormal rate of 3.9%.Among the 102 patients in the injury group,82 patients with knee joint stability had a bone tunnel enlargement rate of(25.13±1.48)%and(25.17±2.14)%in the femur and tibia at 3 months after surgery,respectively;The expansion rates of femoral and tibial bone tunnels in 20 patients with knee instability at 3 months after surgery were(25.32±1.01)%and(25.04±1.82)%,respectively.Intragroup comparison,the differences was not statistically significant(P>0.05).The average T2 value of the anterior cruciate ligament in the healthy group was(23.11±1.66),while in the injured group,the average T2 value of the reconstructed graft at 3 months after surgery in stable knee patients was(28.53±1.74),and in unstable knee patients,the average T2 value of the reconstructed graft at 3 months after surgery was(32.43±2.04),Comparison of T2 values in three groups,the differences was statistically significant(P<0.05).Conclusion:Magnetic resonance imaging can effectively demonstrate the imaging characteristics of knee joint stability after anterior cruciate ligament reconstruction surgery,and can sensitively reflect the bone tunnel and anterior cruciate ligament situation of the knee joint.It has good clinical guidance value for evaluating knee joint stability.